Floors Walls Roofs. Jabfill Premium. APPLICATION: Full-fill Cavity Wall Insulation PRODUCTS: Vencel Resil Limited

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1 Floors Walls Roofs APPLICATION: Full-fill Cavity PRODUCTS: Vencel Resil Limited Head Office: Infinity House, Anderson Way, Belvedere, Kent DA17 6BG Tel: Fax: Technical Services: Tel: Fax: Sales Office: Boothferry Works, Howden, Nr Goole, East Riding of Yorkshire DN14 7EA Tel: Fax: Website:

2 2 Vencel Resil is one of the UK s largest manufacturer s of expanded polystyrene (EPS) and under the Jablite brand, supplies a range of bespoke insulation products and solutions to the construction, industrial and housebuilding markets. Vencel Resil specialises in providing industry-leading insulation solutions that meet current and future Building Regulations requirements for the specification of floors, walls and roofs of commercial, public sector and residential buildings. Established in 1973, the company has been a member of the Synbra Group since Synbra is a multi-national organisation specialising in producing high quality EPS products throughout Europe. Being part of a European group means having the benefit of access to extensive resources and technology. Technical support Vencel Resil provides technical and design support and has a dedicated team of professionals who have extensive experience of working in the industry. Many clients find the technical support they receive invaluable in ensuring that specifications are in line with modern building requirements. Being more than just a manufacturer of EPS products, it is the company s expertise within this sector and the knowledge within its team which establishes Vencel Resil as one of the leading providers of high performance insulation. Jablite a market leading insulation material Vencel Resil has a major UK manufacturing base, where its Jablite expanded polystyrene products can be produced to specific grades and thicknesses to suit clients needs. As such, the company is constantly seeking ways to enhance the performance of the range. Jablite EPS is a proven insulation material, widely regarded as one of the most effective on the market, offering high thermal performance, unrivalled sustainability credentials, long-term durability, whilst ensuring its cost effectiveness in the market. Jablite Premium Jablite Premium is an innovative Low Lambda (EPS) insulation material that has the capacity to enhance a building s thermal performance by up to 20%. This enables builders and contractors to meet ever tightening Building Regulations without having to change their build practices A relatively new innovation in EPS insulation, Jablite Premium is becoming widely used in the floors, walls and roofs of domestic, public sector and commercial buildings. Instantly recognisable by its distinctive grey board with orange speckles, it provides the reassurances to architects, specifiers and contractors that the material used on site is the same as the one specified and, crucially, that the resulting performance matches the approved design intent. A major benefit of Jablite Premium is that it offers improved U-values without having to alter the thickness of the cavity wall or change the construction of the floor or roof. This ensures contractors on site maintain their efficiency, whilst clients benefit from maximum internal floorspace and low running costs. BRE Green Guide to Specification The Green Guide, produced by the British Research Establishment (BRE), assesses a range of building products environmental performance over their full life-span and awards them with a sustainability rating. EPS has achieved an A+, which is the highest rating possible and clearly demonstrates the material s excellent thermal and environmental credentials. The BRE ranks materials on the basis that the benefit of using any of the insulation types listed in the guide will outweigh the embodied environmental impact of their manufacture, installation and end-of-life disposal. Environmental credentials Expanded polystyrene is recognised for its excellent energy efficiency and low environmental impact. It has an ODP (Ozone Depletion Potential) of zero and a low GWP (Global Warming Potential), which is exemplary. Vencel Resil is fully committed to sustainability in all areas of its operation. Energy saving and modern methods of construction are all carefully considered when researching and developing new products, as well as end of life recyclability.

3 3Floor Insulation 3 APPLICATION: Product: is a cavity-wall insulation system designed to be incorporated into new masonry walls during construction to satisfy the relevant U-value requirements. The insulation boards have a fluted face and a tongued and grooved edge profile which is fully-interlocking; when in place the insulation fills the cavity and does not require special clips or wall ties. Easy to handle is manufactured from low lambda expanded polystyrene (EPS) which is lightweight and easy to handle on site. Permanent is rot-proof and durable and will remain effective for the life of the building. It also has the added advantage of being flood-proof. Rapid construction No specialised trades or equipment are required. The boards are marked to indicate the external face and the vertical orientation. Fluted face The boards have 5mm-deep flutes on the external face which ensures that any moisture that penetrates the external leaf is directed down the outer face of the insulation and back into the external masonry. Protected joints An angled fillet on the outer face at the bottom edge of each board helps to shed water away from the lateral joints by overlapping the next board. Environment Expanded polystyrene has been awarded an A+ rating by the BRE s Green Guide to Specification. Type is supplied as EPS 70 as defined in BS EN Reaction to Fire Class E, containing a flame-retardant additive. Approvals has been assessed and approved by the British Board of Agrément for use in cavity walls to a maximum height of 12m; Certificate number 96/3215. Dimensions Standard size: 450 x 1200mm nominal; 476 x 1219mm actual (including tongues and bottom edge detail). Standard thicknesses: 75 and 100mm Shape boards are tongued and grooved on all four edges. The external face has a series of 5mm moulded flutes, and there is an angled fillet moulded into the bottom edge. Fire When properly installed, is fully protected by the masonry and will have no adverse effect on the fire performance of the wall. U-values Tables describe a selection of common cavity wall constructions using a range of materials for both the inner and outer leaf, and gives the U-values which will typically be achieved by using 75 or 100mm thickness of. Their calculation complies with the calculation procedures contained in the conventions for U-value calculations document accompanying the Building Regulations. This takes into account mortar joints, air gap connections, wall ties and linings as necessary. The values given are based on a k-value of 0.030W/mK for the insulation. For calculation purposes, the flutes on the external face of the boards are ignored giving calculated board thicknesses of 70 and 95mm. If you require U-values for any other build-up other than those shown in tables , please contact Vencel Resil's technical services department. Thermal resistance The thermal resistance, R-value for each thickness of is as follows: 75mm 100mm 2.33m 2 K/W 3.16m 2 K/W These figures can be used for calculation of U-values for constructions not described in tables

4 4 Table 19.1 Outer leaf 102.5mm Brickwork Fair Faced thickness U-values (W/m 2 K) Inner leaf construction & finish Fair-faced 13mm Lightweight plaster 12.5mm plasterboard on dabs 100mm dense concrete block 75mm mm mm lightweight block (0.31W/mK) 75mm mm mm Brickwork 75mm mm mm aerated concrete (AAC) block (0.16W/mK) 75mm mm mm aerated concrete (SAAC) block (0.11W/mK) 75mm mm Table 19.2 Outer leaf 150mm Natural Stone Fair Faced thickness U-values (W/m 2 K) Inner leaf construction & finish Fair-faced 13mm Lightweight plaster 12.5mm plasterboard on dabs 100mm dense concrete block 75mm mm mm lightweight block (0.31W/mK) 75mm mm mm Brickwork 75mm mm mm aerated concrete (AAC) block (0.16W/mK) 75mm mm mm aerated concrete (SAAC) block (0.11W/mK) 75mm mm

5 5 APPLICATION: Table 19.3 Outer leaf 100mm Dense concrete block 13mm Render finish thickness U-values (W/m 2 K) Inner leaf construction & finish Fair-faced 13mm Lightweight plaster 12.5mm plasterboard on dabs 100mm dense concrete block 75mm mm mm lightweight block (0.31W/mK) 75mm mm mm Brickwork 75mm mm mm aerated concrete (AAC) block (0.16W/mK) 75mm mm mm aerated concrete (SAAC) block (0.11W/mK) 75mm mm Table 19.4 Outer leaf 100mm Dense concrete block Tiles on batten finish thickness U-values (W/m 2 K) Inner leaf construction & finish Fair-faced 13mm Lightweight plaster 12.5mm plasterboard on dabs 100mm dense concrete block 75mm mm mm lightweight block (0.31W/mK) 75mm mm mm Brickwork 75mm mm mm aerated concrete (AAC) block (0.16W/mK) 75mm mm mm aerated concrete (SAAC) block (0.11W/mK) 75mm mm

6 6 Figure 19.1 Wall tie First row of wall ties at 600mm centres Damp-proof course

7 7 APPLICATION: INSTALLATION Figure 19.2 Figure 19.2 gives a typical installation of showing how the insulation should be extended below the damp-proof course (DPC) level to provide floor-edge insulation. The illustration also shows the tongued and grooved board joints. Individual boards are marked on their external face to indicate their correct orientation in the cavity The boards are secured between wall ties. It is important to select the correct size of wall tie in relation to the thickness of the wall; further information can be obtained by consulting the wall tie manufacturer s literature. Damp-proof membrane For buildings where the floor structure Damp-proof membrane 3. Wall ties 4. First row of wall ties at 600mm centres penetrates the external-wall cavity, for example at balcony positions, a horizontal damp-proof tray should be installed immediately above the upper limit of the insulation in order to avoid the transfer of moisture to the inner leaf. Construction procedure The walls are constructed in the normal way but the inner leaf should be advanced to sufficient height, and the mortar cleaned off the cavity face, before installing the insulation boards and continuing construction of the outer leaf. The first row of wall ties should be positioned at the base of the lowest insulation board but not directly on the DPC; the wall ties should be located at 600mm horizontal centres and should slope down towards the outer leaf. Subsequent wall ties should be placed at 450mm centre vertically, and at maximum 900mm centres horizontally to suit regulations (as laid down in BS 5628:Part 3) and the structural requirements for the wall.when the first row of boards needs trimming to height to meet course requirements, this must be carried out on the bottom edge of the boards. A section of the internal leaf should be built up to a course above the next row of wall ties. The boards are fitted between the upper and lower wall ties, with their edges tightly-butted together; the horizontal tongue should be uppermost, and the fluted face to the outer leaf. Care should be taken not to damage the tongues when inserting the wall ties. Construction of the outer leaf should proceed until it reaches the top level of the installed boards. The bricks or blocks should be laid so that they are in contact with the fluted face of the insulation. Successive sections of wall are constructed in the same way, with the wall ties and insulation boards installed as work proceeds. After raising each section of the outer leaf, excess mortar should be removed and any mortar droppings cleaned from the top edges of the insulation boards. The use of cavity board is recommended to protect the edges of the insulation during construction and to facilitate cleaning. BS 5628: Part 3 gives further information on the protection of work in progress. boards should be installed to the highest level in each wall. If this is not possible, the top edge of the boards must be protected by a cavity tray with alternate perpend joints raked out to allow drainage from the tray.

8 8 Reveals At the reveals of openings additional wall ties are generally introduced at maximum 300mm centres and within 225mm of all openings. However, this method of construction would mean that the Jabfill Premium boards must be pierced to accommodate the non-standard tie spacings and this can introduce an unacceptable risk of water penetration. A better method of construction is to introduce additional wall ties at each board course (i.e. 450mm) and within 225mm of the opening; this will satisfy the structural requirements of the wall and simplify construction. Door and window reveals should incorporate an approved cavity closer, or other closing method, according to the set-back of the frame. Consult Vencel Resil's technical services department for further information. Block densities (kg/m 3 ) Dense concrete 1950 Lightweight concrete 1300 Aerated concrete (AAC) block 650 Super-aerated concrete (SAAC) block 480 Thermal conductivity, k-values for materials and finishes: Dense concrete block 1.06 Lightweight concrete block 0.42 Brickwork 0.77 Natural or reconstructed stone 1.50 Aerated concrete (AAC) block 0.17 Super-aerated concrete (SAAC) block 0.11 Dense plaster 0.50 Lightweight plaster 0.21 Plasterboard 0.21 (W/mK) Corner details Corner details are formed by interlocking the boards, and it is important that the joints are closely butted; this will usually require accurate removal of the tongue. Internal corners require that the flutes be removed where the face of one board abuts the next; this will ensure that the joints can be tightly butted. Both internal and external corner details must incorporate a vertical DPC positioned between the face of the insulation and the external leaf, and returning along each wall face to at least 150mm. Cutting The insulation boards can be cut with a fine-tooth saw, either to obtain a specific length or to fit around apertures in the brick or block work, and for general cutting to length. References BS 5628 Code of practice for use of masonry: Part 3, material and components, design and workmanship BS EN Thermal insulation products for buildings Factory made products of expanded (EPS) Specification.