Inter-loc horizontal cavity trays Preformed horizontal cavity tray system for new build and existing walls

Transcription

1 Inter-loc horizontal cavity trays Preformed horizontal cavity tray system for new build and existing walls Existing build inter-loc 2(E) New build inter-loc 4 At the abutment of a flat roof with a cavity wall At the abutment of a lean-to or mono pitch roof with a cavity wall Over concrete ring beams Over airbricks, cavity liners, ducts, meter boxes, etc. On external walls - not exceeding 102.5mm in thickness - built from standard brickwork, blockwork or stone Cavity widths of between 50mm-125mm Fits all cavity sizes up to 125mm Suitable for brick, block and stone wall construction (cutting of masonry may be required 150mm high back upstand exceeds minimum requirements Angled section between cavity Interlocking mechanism for joining tray lengths to eliminate tray jointing Built to brick bonding lengths for ease of use Angled section between cavity tray base and rear upstand automatically sheds water to the outer leaf Built independent to the inner leaf will enable inner and outer leafs to be built independently, if required Available in two lengths: 4 brick for general use and 2 brick for reducing waste when making up a run of cavity tray to the required length Satisfies all NHBC requirements Complies with all relevant Building Regulations Horizontal Inter-loc units are injection moulded in 2mm polypropylene Accessories are vacuum formed in 2mm medium density polyethylene Available in black only Products in the system Horizontal Inter-loc cavity trays The main cavity tray component. Sections join together by means of a lapped interlocking join, to form the main cavity tray run. Water is gathered by the cavity tray and is discharged from the wall through a series of weep holes - one weep hole per Inter-loc tray is required. Corner units Allows the integrity of the main cavity tray run to be maintained when it is necessary to turn a corner on a building. Available in either external or internal format - open ended and taped. Stopends Fitted at the start and finish of the cavity tray run to seal off the open ends and prevent water running back into the cavity. Each component is available to suit cavity widths of either mm Weep holes must be provided in every cavity tray to comply with Building Regulation requirements. These can be formed by installing a purpose made Timloc plastic wall weep unit Each Inter-loc cavity tray fits to the next by means of a lapped interlocking join, as work proceeds while working from right to left With rigid pre-formed cavity trays such as the Inter-loc system it is not necessary for the cavity tray to span all the way across the cavity. As long as the cavity tray stands back from the rear face of the external wall and projects back into the cavity far enough to intercept drips falling from the wall ties, then it will perform effectively Page 1 of 2 see next page 13

2 Inter-loc horizontal cavity trays Preformed horizontal cavity tray system for new build and existing walls Page 2 of 2 To calculate quantities divide the overall length of the cavity tray run by.225 (representing one brick and joint) to give number of bricks required then divide by 2 for IL2 or 4 for IL4 to give tray quantity. Always round up to the next tray because excess length can be cut away If the cavity tray is required to turn a corner, ensure that the correct corner units are ordered Always allow stopends for closed in or open areas when the tray length required is restricted to a set size and may require cutting Stopends will not be required when the cavity tray run is built within the body of the building i.e. bay windows. For this application the integrated stopend can be built into the next available joint projecting past the abutting roof Contact our Sales or Technical Department for pricing and assistance - Telephone New build applications Existing build remedial work applications 370 PREFORMED CAVITY TRAY / ACCESSORIES Manufacturer: Timloc Building Products, Rawcliffe Road, Goole, Type(s) and location(s): Cavity tray supplied to be installed over horizontal abutments on new build applications, ring beam systems, airbricks, cavity liners, meter boxes, ducts etc. Build in carefully in accordance with manufacturer s recommendations to ensure a fully watertight installation. Reference:... e.g. Inter-loc 4 Horizontal Tray (4 Brick Long) Optional Accessories:... e.g. Inter-loc 4-CL-RH Horizontal Corner Link Tray 370 PREFORMED CAVITY TRAY / ACCESSORIES Manufacturer: Timloc Building Products, Rawcliffe Road, Goole, Type(s) and location(s): Cavity tray supplied to be installed over horizontal abutments on existing build applications, ring beam systems, airbricks, cavity liners, meter boxes, ducts etc. Build in carefully in accordance with manufacturer s recommendations to ensure a fully watertight installation. Reference: Inter-loc 2 (E) Horizontal Tray (2 Brick Long) Optional Accessories:... e.g. EXT90 (E) External Corner 90 Degree New build applications Inter-loc system horizontal cavity trays Description Effective length Product code Inter-loc horizontal tray 4 brick Inter-loc 4 Inter-loc horizontal tray 2 brick Inter-loc 2 Corner link tray RH 430mm Inter-loc 2-CL-RH Corner link tray LH 430mm Inter-loc 2-CL-LH Corner link tray RH 880mm Inter-loc 4-CL-RH Corner link tray LH 880mm Inter-loc 4-CL-LH External 90 corner taped 2/4 brick Ext 90 Internal 90 corner taped 2/4 brick Int 90 External 135 corner taped 330mm Ext 135 Internal 135 corner taped 150mm Int 135 Stopend RH SERH Stopend LH SELH Existing build remedial work applications Inter-loc system horizontal cavity trays Description Effective length Product code Inter-loc horizontal tray 2 brick Inter-loc 2 (E) External 90 corner taped 2/4 brick Ext 90 (E) Internal 90 corner taped 2/4 brick Int 90 (E) External 135 corner taped 330mm Ext 135 (E) Internal 135 corner taped 150mm Int 135 (E) 14

3 System 2000 horizontal cavity trays Horizontal cavity tray system for all types of brick, block and stone new build constructions Horizontal cavity tray External corner Internal corner Stopend (LH) At the abutment of a flat roof with a cavity wall At the abutment of a lean-to or mono pitch roof with a cavity wall Over concrete ring beams Over airbricks, cavity liners, ducts, meter boxes, etc. Cavity widths of between 50mm-125mm 150mm high back upstand exceeds minimum requirements Low profile lapped joint between sections allows any length of brick, block or stone to be used without difficulty Angled section between cavity tray base and rear upstand automatically sheds water to the outer leaf Cavity tray builds into the outer leaf only to speed up installation to allow both inner and outer leafs to be built independently if required Choice of two lengths: 880mm for general use; 460mm to reduce waste when making up a run of cavity tray to the required length System available on request with pre-applied polystyrene strips. Polystyrene offers a visual locator of the cavity trayso aiding the installation of post fitted lead work. (May incur additional charge) BBA approved Satisfies all NHBC requirements Complies with all relevant Building Regulations All products are vacuum formed in 2.0mm thick medium density polyethylene - virtually indestructible in normal use Available in black only Products in the system Horizontal cavity trays The main cavity tray component. Sections join together by means of a lapped joint, sealed with factory applied butyl mastic tape, to form the main cavity tray run. Water is gathered by the cavity tray and is discharged from the wall through a series of weep holes. Corner units Allows the integrity of the main cavity tray run to be maintained when it is necessary to turn a corner on a building. External or internal. Stopends Fitted at the start and finish of the cavity tray run to seal off the open ends and prevent water running back into the cavity. Weep holes (Timloc 1143 or TW1) must be provided every 900mm along the cavity tray run to comply with Building Reg.requirements Each component fits to the next by means of a lapped joint that is sealed with butyl mastic tape. Surfaces must be clean and dry otherwise a good seal will not be formed With pre-formed cavity trays such as the System 2000 it is not strictly necessary for the cavity tray to span all the way across the cavity. As long as the cavity tray stands back from the rear face of the external wall and projects back into the cavity far enough to intercept drips falling from the wall ties, then it will perform effectively To calculate quantities divide the overall length of the cavity tray run by 830mm. If the calculation does not come to an exact figure, round up to the next whole number. The 460mm length can be used as a make up piece to reduce waste and cost If the cavity tray is required to turn a corner, ensure that the correct corner units are ordered Always order stopends - typical installations require one right hand and one left hand stopend for the start and finish of the run Always state the cavity width when ordering 370 PREFORMED CAVITY TRAY / ACCESSORIES Type(s) and location(s): Cavity tray supplied to be installed over horizontal abutments on new build applications, ring beam systems, airbricks, cavity liners, meter boxes, ducts etc. Build in carefully in accordance with manufacturer s recommendations to ensure a fully watertight installation. Reference:... e.g. 2075/880 (830mm effective length) Optional accessories:... e.g External Corner 90 Degree System 2000 horizontal cavity trays (new build) Description Overall length /effective length to suit cavity widths of 50-74mm 75-99mm mm Horizontal tray 880mm/830mm 2075/880 (50) 2075/880 (75) 2075/880 (100) Horizontal tray 460mm/410mm 2075/460 (50) 2075/460 (75) 2075/460 (100) External 90º corner N/A 2010 (50) 2010 (75) 2010 (100) Internal 90º corner N/A 2011 (50) 2011 (75) 2011 (100) External 135º corner N/A 2012 (50) 2012 (75) 2012 (100) Internal 135º corner N/A 2013 (50) 2013 (75) 2013 (100) Stopend RH N/A Stopend LH N/A

4 System 2000E horizontal cavity trays for refurbishment Horizontal cavity tray system for remedial work on existing walls E-Horizontal cavity tray External corner Internal corner Stopend (LH) For remedial work where a horizontal cavity tray must be inserted into an existing wall At the abutment of a flat roof with a cavity wall At the abutment of a lean-to or mono pitch roof with a cavity wall Over airbricks, cavity liners, ducts, meter boxes, etc. On external walls - not exceeding 102.5mm in thickness - built from standard brickwork, blockwork or stone Cavity widths of between 50mm-125mm Compact size and design allows insertion into an existing wall without ever having to remove more than three bricks at any one time Low profile lapped joint between sections allows for variations in brick size Angled section between cavity tray base and rear upstand automatically sheds water to the outer leaf Cavity tray builds into the outer leaf only, so there is no need to disturb the inner wall of the building BBA approved Satisfies all NHBC requirements Complies with all relevant Building Regulations All products are vacuum formed in 2.0mm thick medium density polyethylene Available in black only Products in the system Horizontal cavity trays The main cavity tray component. Sections join together by means of a lapped joint, sealed with factory applied butyl mastic tape, to form the main cavity tray run. Water is gathered by the cavity tray and is discharged from the wall through a series of weep holes. Corner units Allows the integrity of the main cavity tray run to be maintained when it is necessary to turn a corner on a building. Available in either external or internal format. Stopends Fitted at the start and finish of the cavity tray run to seal off the open ends and prevent water running back into the cavity. Each component is available to suit cavity widths of 50-74mm, 75-99mm and mm - make sure you select the correct width for the project in hand Weep holes (Timloc 1143 or TW1) must be provided every 900mm along the cavity tray run to comply with Building Reg.requirements. Each component fits to the next by means of a lapped joint that is sealed with butyl mastic tape. Surfaces must be clean and dry otherwise a good seal will not be formed With pre-formed cavity trays such as the System 2000E it is not strictly necessary for the cavity tray to span all the way across the cavity. As long as the cavity tray stands back from the rear face of the external wall and projects back into the cavity far enough to intercept drips falling from the wall ties, it will perform effectively To calculate quantities divide the overall length of the cavity tray run by 440mm. If the calculation does not come to an exact figure, round up to the next whole number If the cavity tray is required to turn a corner, ensure that the correct corner units are ordered Always order stopends - typical installations require one right hand and one left hand stopend for the start and finish of the run Always state the cavity width when ordering 370 PREFORMED CAVITY TRAY / ACCESSORIES Type(s) and location(s): Cavity tray supplied to be installed over horizontal abutments on new build applications, ring beam systems, airbricks, cavity liners, meter boxes, ducts etc. Build in carefully in accordance with manufacturer s recommendations to ensure a fully watertight installation. Reference: 2005E Horizontal Tray (440mm effective length) Optional Accessories:... e.g. 2006E External Corner 90 degree System 2000E horizontal cavity trays (existing walls) Description Overall length /effective length to suit cavity widths of 50-74mm 75-99mm mm Horizontal tray 460mm/440mm 2005E (50) 2005E (75) 2005E (100) External 90º corner N/A 2006E (50) 2006E (75) 2007E (100) Internal 90º corner N/A 2007E (50) 2007E (75) 2007E (100) Stopend RH N/A Stopend LH N/A Alternatively the Inter-loc system is also suitable for remidial work 16

5 Inter-loc horizontal cavity trays - lead attached Preformed horizontal leaded cavity tray system for new build Inter-loc leaded horizontal cavity tray At the abutment of a flat roof with a cavity wall At the abutment of a lean-to or mono pitch roof with a cavity wall Over concrete ring beams Over airbricks, cavity liners, ducts, meter boxes, etc. On external walls - not exceeding 102.5mm in thickness - built from standard brickwork, blockwork or stone Cavity widths of between 50mm-125mm Supplied with factory fitted lead flashing ready cut to suit the pitch of the roof and type of roof covering Fits all cavity sizes up to 125mm Suitable for brick, block and stone wall construction (cutting of masonry may be required) 150mm high back upstand exceeds minimum requirements Angled section between cavity Interlocking mechanism for joining tray lengths to eliminate tray jointing Built to brick bonding lengths for ease of use Angled section between cavity tray base and rear upstand automatically sheds water to the outer leaf Built independent to the inner leaf will enable inner and outer leafs to be built independently, if required Available in two lengths: 4 brick for general use and 2 brick for reducing waste when making up a run of cavity tray to the required length BBA approved Satisfies all NHBC requirements Complies with all relevant Building Regulations Flashings are Code 4 milled lead as standard Horizontal Inter-loc units are injection moulded in 2mm polypropylene Accessories are vacuum formed in 2mm medium density polyethylene Available in black only Products in the system Horizontal Inter-loc cavity trays The main cavity tray component. Sections join together by means of a lapped interlocking join, to form the main cavity tray run. Water is gathered by the cavity tray and is discharged from the wall through a series of weep holes - one weep hole per Inter-loc tray is required. Corner units Allows the integrity of the main cavity tray run to be maintained when it is necessary to turn a corner on a building. Available in either external or internal format - open ended and taped. Stopends Fitted at the start and finish of the cavity tray run to seal off the open ends and prevent water running back into the cavity. Each component is available to suit cavity widths of either mm Weep holes must be provided in every cavity tray to comply with Building Regulation requirements. These can be formed by installing a purpose made Timloc plastic wall weep unit Each Inter-loc cavity tray fits to the next by means of a lapped interlocking join, as work proceeds while working from right to left With rigid pre-formed cavity trays such as the Inter-loc system it is not necessary for the cavity tray to span all the way across the cavity. As long as the cavity tray stands back from the rear face of the external wall and projects back into the cavity far enough to intercept drips falling from the wall ties, then it will perform effectively Page 1 of 2 see next page 17

6 Inter-loc horizontal cavity trays - lead attached Preformed horizontal leaded cavity tray system for new build Page 2 of 2 To calculate quantities divide the overall length of the cavity tray run by.225 (representing one brick and joint) to give number of bricks required then divide by 2 for IL2 or 4 for IL4 to give tray quantity. Always round up to the next tray because excess length can be cut away If the cavity tray is required to turn a corner, ensure that the correct corner units are ordered Always allow stopends for closed in or open areas when the tray length required is restricted to a set size and may require cutting Stopends will not be required when the cavity tray run is built within the body of the building i.e. bay windows. For this application the integrated stopend can be built into the next available joint projecting past the abutting roof Contact our Sales or Technical Department for pricing and assistance - Telephone PREFORMED CAVITY TRAY / ACCESSORIES Type(s) and location(s): Cavity tray supplied with attached lead flashing to be installed over horizontal roof abutments on new build applications. Build in carefully in accordance with manufacturer s recommendations to ensure a fully watertight installation. Reference:... e.g. Inter-loc4-150L Horizontal Tray (4 Brick Long) 150mm lead New build applications with lead attached - 150mm drop lead Inter-loc system horizontal leaded cavity trays Description Effective length Product code Inter-loc horizontal tray 4 brick Inter-loc 4-150L Inter-loc horizontal tray 2 brick Inter-loc 2-150L Corner link tray RH 430mm Inter-loc 2-CL-RH-150L Corner link tray LH 880mm Inter-loc 4-CL-LH-150L External 90 corner taped 2/4 brick Ext L Internal 90 corner taped 2/4 brick Int L External 135 corner taped 330mm Ext L Internal 135 corner taped 150mm Int L New build applications with lead attached - 300mm drop lead Inter-loc system horizontal leaded cavity trays Description Effective length Product code Inter-loc horizontal tray 4 brick Inter-loc 4-300L Inter-loc horizontal tray 2 brick Inter-loc 2-300L Corner link tray RH 430mm Inter-loc 2-CL-RH-300L Corner link tray LH 880mm Inter-loc 4-CL-LH-300L External 90 corner taped 2/4 brick Ext L Internal 90 corner taped 2/4 brick Int L External 135 corner taped 330mm Ext L Internal 135 corner taped 150mm Int L Optional Accessories:... e.g. Inter-loc4-CL-RH-150L Horizontal Corner Link Tray 150mm lead 18

7 System 2000 horizontal cavity trays - lead attached Horizontal leaded cavity tray system for all types of brick, block and stone new build constructions Horizontal cavity tray External corner Internal corner Stopend (LH) At abutment of a lean-to, flat or mono pitch roof and cavity wall On external walls - not exceeding 102.5mm in thickness - built from standard brickwork, blockwork or stone Cavity widths of between 50mm-125mm Supplied with factory fitted lead flashing, cut ready for dressing 150mm high back upstand exceeds minimum requirements Low profile lapped joint between sections allows any length of brick, block or stone to be used without difficulty Angled section between cavity tray base and rear upstand automatically sheds water to the outer leaf Cavity tray builds into the outer leaf only to speed up installation and allow both inner and outer leafs to be built independently Choice of two lengths: 880mm for general use; 460mm to reduce waste when making up a run of cavity tray to the required length BBA approved Complies with all relevant Building Regulations and NHBC requirements Vacuum formed in 2.0mm thick MDPE. Black only Flashings are Code 4 milled lead as standard Products in the system Horizontal cavity trays The main cavity tray component. Sections join together by means of a lapped joint, sealed with factory applied butyl mastic tape, to form the main cavity tray run. Water is gathered by the cavity tray and is discharged from the wall through a series of weep holes. Corner units Allows the integrity of the main cavity tray run to be maintained when it is necessary to turn a corner on a building. External or internal. Stopends Fitted at the start and finish of the cavity tray run to seal off the open ends and prevent water running back into the cavity. Each component is available to suit cavity widths of 50-74mm, 75-99mm and mm - please select the correct width Weep holes must be provided every 900mm along the cavity tray run to comply with Building Regulation requirements. These can be formed by installing a purpose made Timloc plastic wall weep unit Each component fits to the next by means of a lapped joint that is sealed with butyl mastic tape. Surfaces must be clean and dry otherwise a good seal will not be formed In areas of severe weather exposure, customers should consider specifying a heavier code of lead and/or mechanically fixing and sealing the lead to prevent uplift To calculate quantities divide the overall length of the cavity tray run by 830mm. If the calculation does not come to an exact figure, round up to the next whole number. The 460mm length can be used as a make up piece to reduce waste and cost If the cavity tray is required to turn a corner, ensure that the correct corner units are ordered Always order stopends - typical installations require one right hand and one left hand stopend for the start and finish of the run Always state the cavity width when ordering State whether long (300mm) or short (150mm) leads are required. Long leads are used where flashing is required to dress directly over the top of the roof tile. Short leads are used where there is a soaker or secret gutter detail 370 PREFORMED CAVITY TRAY / ACCESSORIES Type(s) and location(s): Cavity tray supplied with attached lead flashing to be installed over horizontal roof abutments on new build applications. Build in carefully in accordance with manufacturer s recommendations to ensure a fully watertight installation. Cavity Width:... Reference:... e.g. 2075/880 L (830mm effective length) 150mm lead Optional Accessories:... e.g L External Corner 90 Degree (150mm lead) System 2000 horizontal leaded cavity trays (new build) Description Overall length /effective length to suit cavity widths of 50-74mm 75-99mm mm Horizontal tray 880mm/830mm 2075/880L(50) 2075/880L(75) 2075/880L(100) Horizontal tray 460mm/410mm 2075/460L(50) 2075/460L(75) 2075/460L(100) External 90º corner N/A 2010L(50) 2010L(75) 2010L(100) Internal 90º corner N/A 2011L(50) 2011L(75) 2011L(100) External 135º corner N/A 2012L(50) 2012L(75) 2012L(100) Internal 135º corner N/A 2013L(50) 2013 L(75) 2013L(100) Stopend RH N/A Stopend LH N/A Please state whether long or short leads are required. 19

8 LCT lintel, GCT and HPT horizontal cavity trays A range to protect modern steel lintels, general purpose horizontal and parapet cavity applications Over steel lintels in external cavity walls (LCT) General purpose horizontal cavity applications such as floor beams, abutments and meter boxes (GCT) For parapet walls (HPT) Fully self supporting cavity tray system built independently from inner leaf Available for all coursing heights and styles with options available to suit all cavity variations Full range of cut to length sizes available No site fabrication, no waste, easy to handle and install Consistency and build quality maintained, cost effective Tough, durable, scratch resistant and puncture resistant Manufactured to BS ISO 9001 : 2000 Meets all documented cavity tray requirements Meets all NHBC recommendations Manufactured from black 2mm polypropylene A high quality product that is rigid yet durable for site conditions Lintel cavity trays must be combined with lintel stopends and proprietary weep hole units to achieve their full potential of being a system which offers maximum water catchment and discharge properties for above openings Standard length 2.5 mtrs in one piece Two stopends and weep holes at 450mm centres (minimum of two weep holes) are required per lintel/tray Consult lintel manufacturer to confirm lintel upstand height and select next available LCT height (either 100mm, 150mm or 225mm) Calculate the length of LCT required by adding a minimum of 300mm to length of lintel. This will give adequate cavity tray length to allow stopends to be inserted into the next perp joint away from the opening Add the appropriate LCT length to the product code before ordering The standard range of lintel cavity tray has been designed to suit the most popular types of steel lintel 485^ PREFORMED CAVITY TRAY / ACCESSORIES To extend not less than 150mm beyond ends of lintels/bridgings. Reference: LCT Lintel Cavity Trays. Cavity Rise:... (100mm, 150mm or 225mm) Cavity Width:... (50mm, 75mm or 100mm) LCT lintel, GCT and HPT horizontal cavity trays Description Colour to suit cavity widths of 50mm 75mm 100mm LCT100 Lintel tray Black LCT150 Lintel tray Black LCT225 Lintel tray Black GCT50 Horizontal tray Black 5201 GCT75 Horizontal tray Black 5202 GCT100 Horizontal tray Black 5203 HPT50 Horizontal tray Black 5301 HPT75 Horizontal tray Black 5302 HPT100 Horizontal tray Black 5303 Corners, stopends and joining tape are available to offer a fully sealed/water tight system. Other variants of GCT available to order. LCT100 LCT150 LCT225 Product 5201 Product

9 Purpose made cavity trays Special made to measure damp proof course units for dpc applications Threshold trays Corner/column stopends Wherever DPC is used to form a horizontal cavity tray To substitute the cutting, moulding and sealing of a DPC when forming cavity trays, angles, stop ends and column cloaks Pier and column cloaks One piece seamless mouldings eliminate the need for site fabrication to prevent errors through poor workmanship Tailor-made to order - manufactured to suit exact customer requirements with delivery to site usually within 7 working days Easy to handle, flexible, tough, durable and puncture resistant Fully compatible with all Timloc DPC and cavity tray systems Can be used for multi-storey or high loading applications - will not extrude under loads up to the point of compressive failure of wall Wide range of standard components with special, tailor-made accessories also readily available Design principals comply with all relevant Building Regulations and relevant British Standards Vacuum formed in 2mm medium density polyethylene In line heat bending in 2mm polypropylene Available in black only Products in the system Cavity trays for brick support systems Pier, column and corner cloaks Threshold trays Change of level units Stop end and junction cappings Radius units Ring beam cavity tray systems Parapet cavity tray systems As with all DPC systems, purpose made units should always be bedded on to fresh mortar, never dry bedded. The masonry laid over the DPC and purpose made unit should also be bedded on to fresh mortar so that the DPC system is approximately half way through the thickness of the mortar joint Continuation of DPC must be lapped on to the purpose made unit by a minimum of 100mm All lapped joints must be fully sealed with jointing tape (not all unitsare supplied with jointing tape attached). It is essential that the jointing surfaces are clean and dry or the jointing surfaces will not seal correctly All DPC items should be installed to relevant codes of practice Cavity trays are made to order, so please supply full construction details. Ideally these will include a fully dimensioned drawing. Straight column cloaks Corner expansion joints 385 PREFORMED DPC / CAVITY TRAY JUNCTION CLOAKS / STOPENDS Type(s) and location(s): Preformed made to measure Cavity tray to be designed to fit around non standard bespoke applications, such as columns, wind posts, corners, lintels etc Seal all laps with dpc and/or cavity trays using adhesive/mastic in accordance with manufacturers recommendations to ensure a fully watertight installation. Reference: Timloc Purpose made Cavity Trays Types shown on drawings. 21

10 Cavity trays for door and window openings Tailor-made cavity tray systems for all types of door/window arches and circular windows Around the opening of an external door or window with an arched top or a circular external window On external walls - built from brick, block or stone as well as timber frame constructions - of any thickness and any cavity width One piece seamless mouldings eliminate the need for site fabrication to prevent errors through poor workmanship Tailor-made to order - manufactured to suit exact customer requirements with delivery to site usually within 7 working days Any size, type or radius of curve can be fabricated Can be supplied in two or more sections to allow adjustment on site and easily compensate for building tolerances Easy to handle, flexible, tough, durable and puncture resistant Fully compatible with all Timloc DPC and cavity tray systems Can be used for multi-storey or high loading applications - will not extrude under loads up to the point of compressive failure of wall Wide range of standard components with special, tailor-made accessories also readily available Satisfies all NHBC requirements Complies with all relevant Building Regulations All products are vacuum formed in 2.0mm thick medium density polyethylene - virtually indestructible in normal use Available in black only Under normal circumstances the arch and bullseye cavity tray is positioned so that the upstand fits between the door/window frame and the external brickwork. After installation the upstand can be trimmed back flush with the frame and sealed with exterior mastic in the normal way Weep holes must be provided at the base of the arch cavity tray at both sides of the opening. These can be formed by installing a purpose made Timloc plastic wall weep unit (product 1143/TW1) When the arch and bullseye cavity tray is supplied in two or more sections, each section fits to the next by means of a lapped joint that is sealed with butyl mastic tape. Surfaces must be clean and dry otherwise a good seal will not be formed Arch and bullseye cavity trays are usually supplied with an integral flap which builds in to the inner leaf to ensure it is held securely in position. If building-in is not possible. e.g. with a timber frame construction, the cavity tray flap should be mechanically fixed to the inner leaf Arch cavity trays are made to order, so please supply full construction details. Ideally these will include a fully dimensioned drawing showing door/window opening size and wall construction details. If this is not possible the minimum information required is: Thickness of outer leaf and cavity width Clear opening width and height of door/window opening Radius of curvature Position of spring line With this data Timloc will be able to produce and despatch a dimensioned drawing for your approval. 385 PREFORMED DPC / CAVITY TRAY JUNCTION CLOAKS / STOPENDS Type(s) and location(s): Preformed Arch Cavity Tray to be positioned directly over external arch window features/lintels. Seal all laps with dpc and/or cavity trays using adhesive/mastic in accordance with manufacturers recommendations to ensure a fully watertight installation. Reference: SPA Arch Dpc Cavity Tray Diameter:... Types & sizes as shown on drawings/window schedule. 385 PREFORMED DPC / CAVITY TRAY JUNCTION CLOAKS / STOPENDS Type(s) and location(s): Preformed Circular Cavity Tray to be positioned directly around external circular window features/lintels. Seal all laps with dpc and/or cavity trays using adhesive/mastic in accordance with manufacturers recommendations to ensure a fully watertight installation. Reference: SPB Bullseye Dpc Cavity Tray Diameter:... Types & sizes as shown on drawings/window schedule. 22

11 Sill forming cavity trays Preformed undersill cavity trays supporting centred brick Under brick or tile sills providing a combined cavity tray DPC and integral former Fully self-supporting sill former Provides a constant angle and even line Unique easy snap off front lip support Full range of cut to length sizes available Consistency and build quality maintained No site fabrication Tough, durable, scratch resistant and puncture resistant No waste Easy to handle and install Cost effective Manufactured by vacuum forming from a thermoplastic material specially developed for external use, with high impact strength and exceptional weathering stability Standard colour is black Products in the range For brick sills in masonry walls - Product STA50/75 The outer brick wall is built to two courses below window frame level. Available in cut to length sizes up to a maximum of 2.85 mtrs. For brick sills in timber framed buildings - Product STC50/75 Because there is no inner leaf of blockwork, type C is supplied without a flat rear flange. Available in cut to length sizes up to a maximum of 2.85 mtrs. For brick sills in masonry and brick framed buildings - Product STR50/75 This unit is independent from the inner leaf for mixed construction, but a DPC will be required to make a sealed system. Available in cut to length sizes up to a maximum of 2.85 mtrs. 485^ CAVITY TRAYS OVER OPENINGS AND OTHER CAVITY BRIDGINGS To extend not less than 150mm beyond ends of openings. Reference: Sill Forming Cavity Trays Window Sill Type:... Brick Cavity Width:... Internal Wall Construction:... Sill forming cavity trays Cavity size 50mm 50mm 50mm 75mm 75mm 75mm STA50/75 STC50/75 Brick sills STA50 STC50 STR50 STA75 STC75 STR75 STR50/75 23

12 Masonry support system Effectively protects masonry support systems from water penetration MST50 MST75 MST100 MSTEXT90 MSTRHS Direct fitment over masonry support systems to form DPC cavity trays Standard range available with cavity width options Can be tailored to suit all types of masonry support systems Supplied in 20m rolls, to reduce jointing Once the cavity tray has been folded it maintains its profile, but still has the benefits and manoeuvrability of a traditional flexible system r-friendly material for positioning directly over complex masonry support angle profiles and under pistol bricks, without encouraging masonry to be kicked forward Minimal wastage, site can roll out and cut what is required Product will not extrude under loads up to the point of compressive failure of the wall Complies with all relevant Building Regulations Manufactured from a BBA approved material Timloc masonry support cavity tray is a 1mm thick composition of ethylene propylene rubbers reinforced with polyester fibres. It does not contain any pitch, tar or bitumen Accessories within the system such as corners, stopends and purpose made cloaks are manufactured from a 2mm thick polyethylene Products in this system Supplied in 20m rolls and is available in a range of pre-creased roll widths 450mm, 600mm, 1000mm. Corner units For use where a cavity tray system must turn the corner of a building. Various angles can be supplied. Stopend units For sealing off the ends of the cavity tray at its start and finish. Special cloaks Manufactured to site specific requirements such as column units etc. Jointing tape For sealing lapped joints. It is advisable to supply Timloc with sectional drawings of the masonry support system to determine what profile cavity tray is required 24 The masonry support cavity tray is only supplied in 20m rolls, no part rolls are available Please allow for 100mm joints etc Corners, stopends units and tape are supplied individually 370 PREFORMED CAVITY TRAY / ACESSORIES To extend not less than 150mm beyond ends of openings. Type(s) and location(s): MST range of Cavity tray to be installed over horizontal masonry support to effectively protect against water penetration. Build in carefully in accordance with manufacturer s recommendations to ensure a fully watertight installation. Reference: MST Range Optional Accessories: 50, 75,100mm cavity options available along with corners, stopends and jointing tape. Roll out a workable length of the cavity tray and fold along the crease lines to create the required profile Lay the front edge of the cavity tray directly over the brickwork support angle Position or lay a course of masonry over the cavity tray to hold it in place The cavity tray can then span the brickwork support system to its given profile and mechanically fixed to the internal wall A fixing band is suggested for mechanically fixing the cavity tray to the internal wall Corner units and stopends are to be installed as work proceeds All joints require a 100mm overlay and the use of joining tape to achieve a watertight seal Masonry support system Roll width Roll Cavity Product code 450mm 20m 50mm MST50 20m 75mm MST75 20m 100mm MST mm special 20m TBA MSTSPEC1 600mm special 20m TBA MSTSPEC2 1000mm special 20m TBA MSTSPEC3 Stopend unit RH MSTRHS Stopend unit LH MSTLHS External corner MSTEXT90 Internal corner MSTINT90 Stopend special MSTSPECSE Corner special MSTSPECCNR Jointing tape 22.5m 9040

13 Lintel stopends A range of profiles to protect modern steel lintels Angle varies 65mm 95mm 15mm On steel lintels situated in external walls On external walls - not exceeding 102.5mm in thickness - built in standard brick, block or stone Purpose made and pre-formed to guarantee an accurate fit on most popular types of steel lintel Far more accurate and reliable than site-formed stopends, or than folding up the ends of the over-lintel DPC Factory fitted butyl mastic seal ensures a secure and watertight bond to the lintel A range of six profiles to suit varying lintel splay angles Satisfies all NHBC requirements Complies with all relevant Building Regulations All lintel stopends are injection moulded in polypropylene Available in black only wherever water could collect on an external lintel. Designed to prevent water running off the ends of the lintel and back into the cavity To work effectively lintel stopends should be placed directly on top of the front flange of the lintel, or over-lintel DPC, as close to the ends as the brick bonding will allow The area on the lintel where the lintel stopends are placed must be clean and dry otherwise the pre-applied butyl mastic tape will not seal correctly Two stopends are required per lintel Check the type of stopend required from the product selection table If your lintel is not shown - state its make, model number, length and height on your order and Timloc will advise which stopend is appropriate 485^ CAVITY TRAYS OVER OPENINGS AND OTHER CAVITY BRIDGINGS To be installed at each end of Cavity Tray over lintels/bridgings. Reference: LS01-06 Lintel Stopends to suit (specified lintel type and size) Lintel make & model/lintel stopend Catnic Cougar range (excluding CU) LS01 CN3 LS05 CN4 LS04 CN7 LS02 CN8 LS03 CN11 LS02 CN12 LS04 CN14 LS05 CN41 LS02 CN42 LS03 CN43 LS02 CN44 LS03 CN57 LS06 CN58 LS02 Birtley CB range Box 50 x 140mm Box 50 x 215mm Box 70 x 140mm Box 70 x 215mm Box 50 x 150mm Box 50 x 225mm Box 70 x 150mm Box 70 x 225mm IG All L1 models L5 & L6/50 L5 & L6/75 L5 & L6/100 Keystone P/K, HD/K, S/K CFS/K-50 & WIL CFS/K-70 & WIL CFS/K-90 & WIL LS01 LS02 LS03 LS02 LS03 LS02 LS03 LS05 LS04 LS01 LS03 LS04 LS02 LS01 LS03 LS04 LS02 Others Please consult Timloc Technical Department * Assuming 95mm outer flange All trade marks and all trade names acknowledged 25

14 Cavity wall weeps Multi-function products for discharging water from external walls TW1 Any situation where water must be discharged from an external wall, e.g: At ground floor slab level Within cavity tray systems Over external lintels Where a cavity must be ventilated On external walls - 100mm or more in thickness - built from brick, block or stone Purpose made and pre-formed to guarantee reliable discharge of water Less prone to inadvertent pointing-up than weep holes formed by simply leaving the perp. joint open Integral front grille prevents entry of large nest building insects into the cavity when using product mm wide front aperture prevents entry of large nest building insects into the cavity when using product TW1 Range of colours to blend with brick or mortar colour (products 1143 and TW1 only) Longer lengths built up with extension pieces Satisfies all NHBC requirements Complies with all relevant Building Regulations Products 1143 and TW1 are injection moulded in UV stabilised polypropylene Product 1143 is available in a choice of buff, terracotta, grey, brown, black or white and to special order in clear/natural Product TW1 is available as standard in a choice of buff, terracotta, or grey and to special order in brown, black, clear/natural or white Products 1144 is available in natural only Products in the system Wall weep vents - Product 1143 A cavity wall weep/vent specifically intended for use with standard brick,block or stone external walls of thickness between mm. Concealed wall weeps - Product TW1 A special low profile cavity wall weep specifically intended for use with standard brick, block or stone external walls of thickness between mm. Weep extension - Product 1144 A simple 50mm straight through wall weep extension. Provides the maximum clear opening in the mortar joint with no restrictions. It is available in natural colour only. Wall weeps should be used wherever water could collect inside a cavity wall, such as over external lintels, or wherever a cavity tray system is installed To work effectively wall weeps should be placed directly on top of the base of a cavity tray or DPC, or on the front flange of the lintel Wall weeps should be spaced at 450mm centres to comply with NHBC recommendations Care should be taken to ensure the wall weep is kept clear of mortar and does not become blocked. This is particularly important at the back of the weep which could be blocked by mortar droppings from above To calculate quantities divide the overall length of the cavity tray, DPC or lintel by 450mm and round up to the nearest whole number Check that the external wall is a standard 102.5mm brick or 100mm block thickness, if it is not please state the thickness on your order State the product number, type, colour etc. on your order 132^ WEEP HOLES Form with plastics perpend units to manufacturers recommendations at not greater than 900mm centres immediately above base of cavity, external openings and stepped dpcs. Provide not less than two weep holes over openings. Reference: 1143/TW1 Colour:... (Black, White, Brown, Buff, Grey or Terracotta) Cavity wall weeps Height Width Length Colour Product code 65mm 10mm 100mm Various mm - 65mm 10mm 100mm Various TW1 Cavity weep extensions Height Width Length Colour Product code 65mm 10mm 50mm Natural 1144 NB Airflow = 165mm 2 Free area/unit 26

15 Insulation retaining discs Insu-loc is a universal insulation retaining disc to suit most styles and size of wall ties The Insu-loc disc is a universally designed insulation retaining disc Suitable for general purpose, light duty and heavy duty applications Will fit most wall ties available from leading wall tie manufacturers Suitable for both fibre and rigid slab insulation Firm grip design that will not move on the wall tie Satisfies all NHBC requirements Complies with all relevant Building Regulations Manufactured from polypropylene Available in red and black, special colours can be arranged Products in this system Insulation retaining disc in red - Product IRD80R Insulation retaining disc in black - Product IRD80BLK Insu-loc discs are bagged in 250 s and boxed in 1000 s. No part boxes are available. Insulation retaining discs should be fitted to every wall tie for applications when insulation retainers are required Spacing and quantity calculations should be as wall tie guidance Consult latest NHBC Standards for required spacing Where partial cavity fill is to be used, ties/discs should be spaced at 600mm centres horizontally and in vertical as well as horizontal rows, ie not staggered Retaining discs are clipped onto wall ties either before building in or in situ Due to the firm grip design the disc may require opening slightly to accept the wall tie It is recommended that the wall tie is held in position when the disc is offered and clipped in place Contact our Sales Department - Telephone Insulation retaining disc Description Colour/finish Unit Product code Insulation retaining disc Red p/1000 IRD80R Insulation retaining disc Black p/1000 IRD80BLK Available in minimum quantities of 1000 number 27

16 Technical information & installation advice Horizontal cavity trays Horizontal cavity trays are those which run horizontally within the wall and are appropriate in such situations as: At the abutment of a flat roof with a cavity wall At the abutment of a lean-to roof with a cavity wall Above door or window openings Above the edge of a concrete slab or ring beam Above airbricks or meter boxes Above ducts, pipes or cavity liners which pass through an external wall. When specifying or installing horizontal cavity trays it is important to consider the following recommendations: Allow for the run of cavity trays to be slightly longer than the overall width of the roof abutment or area requiring cavity tray protection. A minimum projection of 150mm at each end of the cavity tray run is recommended When installing horizontal cavity trays over a roof abutment the line of the cavity trays should be approximately 150mm above the top of the finished roof line. This distance will vary slightly depending on how the roof line falls with the coursing on the face of the wall, however, it must be a minimum of 75mm above the top of the finished roof line. The exposed area between the base of the cavity tray and the roof covering must then be fully protected by an appropriate external flashing (see lead flashing section) Cavity trays 150mm Cavity trays must always be bedded onto fresh mortar, never dry bedded. The brickwork which is then laid over the cavity trays must also be bedded onto fresh mortar with the result that the base of the cavity tray is positioned approximately half way through the mortar joint The cavity area must be kept clean and free from mortar droppings and debris. A build-up of mortar within the cavity tray could seriously affect the cavity trays performance A stopend must always be fitted at the start and finish of a run of cavity trays. The Inter-loc range has integrated stop ends, but the System 2000 requires separate stop end units. These stopends fit by means of a pre-applied butyl mastic seal. In order for this to seal correctly it is essential that the release paper is removed, the joint area is clean and dry and pressure is applied along the full length of the joint area once the stopend and cavity tray are brought together It will usually be necessary to link a number of cavity tray sections in order to form a continuous cavity tray run of the required length. The Inter-loc range has an integrated capping system for joining units whereas System 2000 has cavity tray sections that link by means of a lapped joint with a pre-applied butyl mastic seal. In order for this to seal correctly it is essential that the release paper is removed, the joint area is clean and dry and pressure is applied along the full length of the joint area once the two sections of cavity tray are brought together. If there is any doubt about the integrity of any joint do not proceed with further installation until the joint is made good - apply additional sealant if necessary Weep holes must be provided in the face of the wall along the run of the cavity trays. These are essential as without weep holes the water collected by the cavity trays cannot discharge from the wall. Weep holes can be formed by simply installing a Timloc purposemade plastic wall weep unit (product 1143/TW1) of the type shown under our cavity wall weep section. Weep holes should be spaced every 450mm along the run of cavity trays over lintels and 900mm over horizontal cavity trays. Ensure one weep per Inter-loc tray If it is necessary for the cavity trays to turn around a corner on the building always use a purpose made one piece corner unit. Never try to site fabricate this critical detail High quality workmanship, cleanliness and attention to detail are essential with all cavity tray installations. If there is any doubt regarding the correct method of installation assistance must be sought from the Timloc Technical Services Department or Timloc s Regional Technical Adviser. Stepped cavity trays Stepped cavity trays are those which step up the wall in order to follow the abutment of a pitched roof with a cavity wall. When specifying or installing stepped cavity trays it is important to consider the following recommendations: Ensure that the run of cavity trays protects the abutment fully from eaves to ridge. The first (lowest) cavity tray should ideally project just beyond the eaves line of the roof. Further cavity trays must then be installed on every course for the full length of the abutting roof slope The cavity trays should be positioned on a line parallel to and 75mm above the top of the finished roof line. In order to set out the cavity trays accurately it is essential that some sort of guide line is set up for the bricklayer to work to. Allowance must be made for the thickness of the roof timbers, tiles, battens, etc. so that the line represents the top of the finished roof line. This is most easily achieved if an appropriate roof truss is available which can be set up in the correct position and used to secure the guide line Cavity trays must always be bedded onto fresh mortar, never dry bedded. The brickwork which is then laid over the cavity trays must also be bedded onto fresh mortar with the result that the base of the cavity tray is positioned approximately half way through the mortar joint Page 1 of 5 see next page 28