Ytong Multipor Mineral Insulation Boards Tender Text, Ceiling Insulation

Transcription

1 Tender Text, Ceiling Insulation Tender text, Ceiling Insulation 1

2 Bill of Quantities Sample Specifications Application: DI "Ceiling Insulation" Construction Project: Bidder: 2

3 General Information & Comments Use of Tender Texts 1. The present tender texts are a sample bill of quantities and make no pretentions to completeness 2. Use of these text modules does not release planers/users from the responsibility of checking the specific local features at the construction site and other regulations existing for fire safety, etc. 3. Applicable technical and legal construction regulations must also be observed. 4. When the product is not specified specifically, it shall be assumed that the system tendered is offered. 5. If materials other than those listed in the bill of quantities are used, it is legally obligatory to verify their equality with the materials described in the tender by means of analysis values (test reports from officially recognized testing institutes or equivalent verifications). 6. Before performing the described work, all required connections (such as pipe passages, windows, exterior doors, window sills; electrical installations, etc.) must be completed. 7. The subsurface must be dry, supporting and free of grease or oil; it must be ensured that the roof or wall has not been penetrated by moisture from the outside (e.g. driving rain). 8. On wall constructions, the vertical and horizontal barrier layer must function properly against penetrating or rising damp. 9. Insulation of half-timbered constructions is not included in this sample bill of quantities.for such purposes, it is necessarys to consider the applicable WTA data sheets or coordinate energy-related renovations projects on such structures separately with the product manufacturer. 10. It is not permissible for the temperature of the air or the structure to drop below 5 degrees Celsius during processing and curing of the Ytong Multipor insulating system. 11. The current applicable technical documents from Xella Deutschland GmbH (Xella insulating systems) apply for processing. Tender text, Ceiling Insulation 3

4 Table of contents Pos. 1.0 Subsurface Check...5 Pos. 1.1 Subsurface Pretreatment Pos. 1.2 Subsurface Pretreatment Pos. 1.3 Subsurface Pretreatment Pos. 2.0 Insulation of Ceiling from Beneath with...6 Pos. 3.0 Surface Treatment...7 Pos. 3.1 Silicate Coating...7 Pos. 3.2 Filling Insulation Board Surfaces on Ceiling...7 Pos. 3.3 Structural Reinforcement for Insulation Board Surfaces on Ceiling...7 Pos. 3.4 Final Coating on Structural Reinforcement...8 Pos. 4.0 Transition, Solid Roof/Upright walls/roof Support...8 Pos. 5.0 Surface Treatment "Walls/Ceiling Support"...9 Pos. 5.1 Silicate Coating...9 Pos. 5.2 Filling Insulation Board Surfaces on Walls/Ceiling Support...10 Pos. 5.3 Structural Reinforcement on Walls/Ceiling Support...10 Pos. 5.4 Final Coating on Walls/Ceiling Support...11 Additional Items:...11 Pos. 6.0 Edge Protectors...11 Pos. 7.0 Creation of Expansion and Separating Joints Pos. 8.0 Openings 12 Pos. 9.0 Anchoring Insulation Boards...12 Pos Joists...13 Pos Surface Coating on Joists...13 Pos Fastening Loads...13 Pos Fastening Heavy Loads...14 Pos Insulating Reveals...14 Compillation. 15 4

5 Billof Quantities... Date Stamp Signature Item m² Check Subsurface Additional charges for checking and evaluating subsurfaces according to processing guidelines by contractor. Properties of subsurface:... Irregularities from...mm to...mm Item m² Preliminary Subsurface Treatment 1.1 Knock off non-supporting old plaster (including gypsum plaster) and properly dispose of old plaster residues. Remove concrete ridges. Completely clean off old plaster residues and other substances which would reduce adhesion on exposed surface with steel brush or other suitable method. Irregularities from...mm to...mm per Item m² Preliminary Subsurface Treatment 1.2 In order to glue the over the full surface of the solid ceilings to be insulated, it is necessary to compensate faults and irregularities in the plaster with Ytong Multipor light mortar or a lime-cement plaster/plaster category CS II (Tolerances for irregularities in the surface from 3 to 5 mm per running meter are permissible). If plaster compensation rails are attached, observe drying times as specified in DIN V Irregularities from...mm to...mm per running meter Ytong Multipor light mortar, approx. 3 kg/m² for 5 mm layer thickness Tender text, Ceiling Insulation 5

6 Item m² Preliminary Subsurface Treatment 1.3 Clean separating layers (e.g. tape paint, wallpaper, formwork oil, etc.) on treated walls/ceiling surface using suitable cleaning agents/method. Catch wastes and dispose of properly. (to be entered by bidder Item m² Insulating Ceilings with Insulation on ceiling from bottom using (insulation material consisting of CaSi hydrates) according to General Construction Supervisory Approval Z or European Technical Approval ETA-05/0093, Environmental Declaration EPD-XEL D according to ISO as well as natureplus Certification Product is classified in fire classification A1 in compliance with DIN EN Board thickness: 50 /60 /80 /100 /120 /... /200 mm Thermal conductivity: =0.045 [W/(m*K)] Attach to entire surface of supporting and adhesive subsurface with offset joints (overlap dimension 150 mm), level and with tightly pressed butt joints using combed bed method. Do not apply adhesive in butt and horizontal joints. Apply adhesive with trowel (10 mm teeth up to insulation thickness of 140 mm; 12/15 mm teeth for insulation thickness greater than 160 mm to combed surface of insulation boards. Attach boards to ceiling with light pressure. Process according to manufacturer's specifications. Use only Ytong Multipor light mortar as adhesive and reinforcement mortar (light mortar LW according to EN 998-1). Properly fill faults in insulation surface with Ytong Multipor Repair Mortar observing manufacturer's instructions. Adhesive: Ytong Multipor light mortar approx. 3 kg/m² with 10 mm teeth Adhesive: Ytong Multipor light mortar approx kg/m² with 12/15 mm teeth Product/system: Ytong Multipor Mineral Insulation Board with Ytong Multipor light mortar or equivalent 6

7 Item. 3.0 Surface Treatment Item m² Silicate Coating (Painted, rolled or sprayed,...) Thoroughly clean all dust off sanded and smoothed visible surfaces of Ytong Multipor Mineral Insulation Boards and reprime or, as alternative coat with common commercial silicate facade or interior wall paint,which is open for vapour diffusion. Item m² Apply filler coat to surface of insulation boards on ceiling Apply thin layer of Ytong Multipor lightweight mortal to surface of insulation boards. (layer thickness approx. 2 to 3 mm). Note: Hairline cracks in area of board joints are still possible. Filler material: Finish plaster with Ytong Multipor light mortar, approx. 2,0 to 2,5 kg/m² for layer thickness of 2 to 3 mm Product/system: Ytong Multipor Light Mortar Tender text, Ceiling Insulation 7

8 Item m² Reinforcement of Insulation Board Surface on ceiling Apply reinforcement plaster consisting of Ytong Multipor light mortar, according to manufacturer's specifications over full surface in medium layer thickness of 5 mm using 10 mm toothed trowel. Press in alkali-resistant Ytong Multipor reinforcement mesh and work into upper third or reinforcement layer. In addition also fasten reinforcement layer through mesh in supporting subsurface with 4 anchors/m² in fresh state.cover anchor plates with plaster. Reinforcement: Ytong Multipor light mortar, approx. 3-4 kg/m² for 5 mm layer thickness Mesh: Ytong Multipor reinforcement mesh, approx. 1.1 kg/m² (overlap approx. 10 cm) Anchors: 4 anchors/m² wet in wet, insulation anchors with plate diameter of 60 mm Product/system: Ytong Multipor light mortar and Ytong Multipor reinforcement mesh or equivalent Anchor -... Item 3.4 m² Final Coating on Reinforcement Layer Apply final coat consisting of Ytong Multipor light mortar, layer thickness 2-3 mm. Smooth with float before plaster sets. As alternative, apply finish plaster CR to EN 998-1, CS I / CS II or silicate textured plaster with trowel in grain thickness and texture in fresh state. The entire plaster thickness (reinforcement layer & finish plaster) should not exceed 10 mm. The plaster surface can then be finished with a silicate interior wall paint. Before applying paint, allow plaster to cure thoroughly. Finish plaster with Ytong Multipor light mortar, approx. 2 kg/m² for layer thickness of 2-3 mm Ytong Multipor light mortar Finish plaster or silicate plaster (mineral decorative plaster) Fine lime plaster / lime wash 8

9 Item 4.0 m² Transition solid ceiling/upright walls/ceiling support Insulation on wall strip to reduce thermal bridges in ceiling support area using Ytong Multipor Mineral Insulation Boards (insulation material consisting of CaSi hydrates) according to General Construction Supervisory Approval Z or European Technical Approval ETA-05/0093, Environmental Declaration EPD-XEL D according to ISO as well as natureplus Certification Product is classified in fire classification A1 in compliance with DIN EN Board thickness: 50 /60 /80 /100 /120 /... /200 mm Thermal conductivity: =0.045 [W/(m*K)] Apply over full surface on supporting and thermal bridges, level and with tightly pressed butt joints using combed bed method. Do not apply adhesive in butt and horizontal joints. Apply adhesive with trowel (10 mm teeth up to insulation thickness of 140 mm; 12/15 mm teeth for insulation thickness greater than 160 mm to combed surface of insulation boards. Attach boards to wall with light pressure. Process according to manufacturer's specifications. Use Ytong Multipor light mortar (lightweight plaster LW to EN 998-1) as adhesive. Adhesive: Ytong Multipor light mortar approx. 3 kg/m² with 10 mm teeth Adhesive: Ytong Multipor light mortar approx kg/m² with 12/15 mm teeth - Minimum area to be insulated mm from bottom of ceiling - mm from bottom of ceiling - Total wall surface Product/system: Ytong Multipor Mineral Insulation Board with Ytong Multipor light mortar or equivalent Tender text, Ceiling Insulation 9

10 Pos. 5.0 Surface Treatment "Walls/Ceiling Support" Item m² Silicate Coating (Painted, rolled or sprayed,...) Thoroughly clean all dust off sanded and smoothed visible surfaces of Ytong Multipor Mineral Insulation Boards and reprime or, as alternative coat with common commercial silicate facade or interior wall paint,which is open for vapour diffusion. Item m² Apply filler to surface of insulation boards on upright walls/ceiling supports Apply thin layer of Ytong Multipor light mortar to surface of insulation boards (layer thickness approx. 2 to 3 mm) Note: Hairline cracks in area of board joints are still possible. Filler material: Finish plaster with Ytong Multipor light mortar, approx. 2.5 to 3 kg/m² for layer thickness of 2 mm Product/system: Ytong Multipor Light Mortar 10

11 Item m² Reinforce surface of insulation boards on upright walls/ceiling supports Apply reinforcement plaster consisting of Ytong Multipor light mortar, according to manufacturer's specifications over full surface in medium layer thickness of 5 mm using 10 mm toothed trowel. Press in alkali-resistant Ytong Multipor reinforcement mesh and work into upper third or reinforcement layer. In addition also fasten reinforcement layer through mesh in supporting subsurface with 4 anchors/m² in fresh state. Cover anchor plates with plaster. Reinforcement: Ytong Multipor light mortar, approx. 3-4 kg/m² for 5 mm layer thickness Mesh: Ytong Multipor reinforcement mesh, approx. 1.1 kg/m² (overlap approx. 10 cm) Anchors: 4 anchors/m² wet in wet, insulation anchors with plate diameter of 60 mm Product/system: Ytong Multipor light mortar and Ytong Multipor reinforcement mesh or equivalent Anchor -... Item 5.4 m² Final coating on upright walls/ceiling supports on reinforcement layer Apply final coat consisting of Ytong Multipor light mortar, layer thickness 2-3 mm. Smooth with float before plaster sets. As alternative, apply finish plaster CR to EN 998-1, CS I / CS II or silicate textured plaster with trowel in grain thickness and texture in fresh state. The entire plaster thickness (reinforcement layer & finish plaster) should not exceed 10 mm. The plaster surface can then be finished with a silicate interior wall paint. Before applying paint, allow plaster to cure thoroughly. Finish plaster with Ytong Multipor light mortar, approx. 2 kg/m² for layer thickness of 2-3 mm Ytong Multipor light mortar Finish plaster or silicate plaster (mineral decorative plaster) Lime plaster / lime wash Tender text, Ceiling Insulation 11

12 Additional Items Item rm Edge Protection Properly install edge protection on outer corners using suitable corner bead with glass fibre mesh (e.g. for external thermal insulation composite system). Attach mesh board to Ytong Multipor Mineral Insulation Boards using Ytong Multipor light mortar. Position reinforcement mesh over corner bead with glass fibre mesh and embed. Item rm Creating Expansion and Separation Joints: Design expansion and separation joints should extend through the insulation layer and be covered properly on the surface with expansion or separation channels. Expansion/separation joint channels such as APU or Protektor GT:... 12

13 Item 8.0 each Holes/Breaches Additional cost for creating holes/breaches in as specified in Item... Size of opening... mm After completion of technical building installations on construction site, fill joints through Ytong Multipor Mineral Insulation Boards properly observing physical construction requirements, e.g. using Ytong Multipor Repair Mortar. Observe fire protection requirements. Item 9.0 m² Anchoring Insulation Boards On subsurfaces which do not offer sufficient support for dynamic loads conducted into the ceiling layer, anchor insulation boards to supporting subsurface in addition using plate type anchors approved by construction supervisory authority (one anchor per board). e.g. Hilti System Type IDMR with plate up to max. insulation thickness of 140 mm or Ejot DDS up to max. insulation thickness of 160 mm, Insulation board anchors with plate diameter of 60 mm - approx. 4.3 anchors/m² (plate size 600 x 390 mm) Item 10.1 rm Joists Apply contour-matching insulation on joints with as described in Item 3. Observe manufacturer's processing instructions! Product/system: Ytong Multipor Mineral Insulation Board with Ytong Multipor light mortar or equivalent Tender text, Ceiling Insulation 13

14 Item 10.2 rm Surface Coating on Joists Coat surface on basis of specifications in Items 3.1 to 3.4 Product/system: Ytong Multipor Light Mortar Item 11.0 each Fastening Lightweight Loads Lightweight, static loads (up to 3.0 kg each) can be fastened to the Ytong Multipor Mineral Insulation Boards. Select axis dimension so that only one anchor is required in each insulation board. Fasten hardware for light/static loads: - e.g. Ytong Multipor flat anchor - e.g. Fischer Dübel FID Item ea. Fastening Heavy Loads Anchor heavy loads (above 3 kg each), consoles or static supporting loads through insulation in supporting subsurface. If necessary, verify static calculations for console loads. Fastening hardware for console and static supporting loads: - e.g. Fischer Thermax, load class:

15 Item m² Insulation on Reveals / Ceiling Surfaces with Low Inside Heights Insulate present areas with Ytong Multipor reveal boards. Apply over full surface on supporting and thermal bridges, level and with tightly pressed butt joints using combed bed method. Do not apply adhesive in butt and horizontal joints. Apply adhesive with trowel (10 mm teeth) on insulation board surface. Install boards with slight pressure. Process Ytong Multipor reveal boards according to manufacturer's specifications including all materials and fastening hardware. Use Ytong Multipor light mortar (lightweight plaster LW to EN 998-1) as adhesive. Adhesive: Ytong Multipor light mortar approx. 3 kg/m² with 10 mm teeth Board dimensions (l x w x t): 600 x 250 x 20 mm Thermal conductivity: =0.050 [W/(m*K)] Ytong Multipor reveal insulation boards or equivalent Tender text, Ceiling Insulation 15

16 Compilation Construction Project:... Net Total... + VAT... Grand Total... (Location/Date) (Signature/Company stamp) 16

17 Tender text, Ceiling Insulation 17

18 Note: This brochure was published by Xella Deutschland GmbH. Our publications provide advise and information according to the best of our knowledge and the state of the art at the time of publication. Since legal rules and regulations are subject to change, this information is not legally binding. It is necessary to check the applicable regulations in each individual case. Edition 08/2009 Xella Customer Information Telephone: Telefax: Ytong and Multipor are registered trademarks of the Xella Group 18