Built Up Flat Roof Waterproofing Systems

Transcription

1 CI/SfB 47 August 2005 Ln2 Built Up Flat Roof Waterproofing Systems Installed by Intelligent Membrane Trade Association Approved Contractors High Performance Torch Applied and Pour & Roll Roofing Systems for New Build or Refurbishment

2 Built Up Flat Roof Waterproofing Systems The Intelligent Membrane Trade Association gives you Assured Quality Intelligent Membrane Trade Association The IMA was initiated in 1996 by Icopal as a non-profit making organisation to champion the very highest quality standards of flat roof waterproofing in the UK. The association brings together a range of technically advanced high performance roofing products backed by industry-leading guarantees, applied exclusively through a network of approved IMA contractors. Our overall aim is to give Architects, Surveyors and Design & Build professionals the reassurance of knowing that the best products are being installed to the required standards, complying with all relevant Codes of Practice. QUALITY ASSURED Icopal operates a system in accordance with ISO9001, guaranteeing consistently high standards in both products and levels of service. Certificate No. Q05556 ISO 9001 : 2000 Only the best can become IMA Members The Intelligent Membrane Trade Association only accepts expert contractors who can demonstrate excellence in working practice. Even then, all approved contractors must still undertake compulsory training in Health & Safety, risk assessment and workmanship. This tightly controlled membership ensures that the quality chain is maintained from initial roof specification, through materials and workmanship to the finished contract and beyond if necessary. IMA contractors are easily identified on site by their distinctive uniforms and identity badges. Guaranteed Performance All systems in this brochure are covered as standard by comprehensive insurance-backed guarantees covering materials, workmanship, system design, consequential loss and insolvency providing absolute reassurance for specifiers. Formulating your Performance Specification All the diagrams and associated descriptions in this brochure are designed to help you write the correct performance specification to achieve the required waterproofing insurance backed guarantee. To support you in this process an Icopal Technical Representative will be pleased to carry out a survey on existing roofs, including the taking of core samples to determine the existing roof construction and condition. You will then receive a comprehensive written condition report and remedial specification based on the survey s findings. 2 All systems shown in this brochure must be installed by Intelligent Membrane Association (IMA) approved contractors in accordance with relevant Codes of Practice and Icopal s recommended design details.

3 P REVENTI ON P REVENTION 572a to BS476: Part b to ENV1187: 2002 Test 1 Exclusively installed by Intelligent Membrane Trade Association C O N T R A C T O R CI/SfB 47 CI/SfB M2 P June 2005 WORLD LEADER IN WA TERPROOFING Contents Profiles Torch Applied Systems 4 System for new build or refurbishment. Up to 20 years insurance backed guarantee For details of IMA FireSmart products and application equipment please refer to our 1 IMA FireSmart brochure 2 FireSmart Therma Screed Insulated Roof Drainage System Brochure Profiles Solo Torch Applied Systems 8 Single ply overlay system for the refurbishment of existing flat roofs. 12 years insurance backed guarantee Thermaweld Metal Faced 10 Torch Applied Systems Metal faced membranes to add extra distinction to your prestige projects. Up to 20 years insurance backed guarantee 1 FireSmart Flat RoofingSystemand Application Technology The first fire protection flat roofing membrane system accredited by the LPCB LPCB LOSS CERTIFI CATI ON BOARD LPCB LOSS CERT IFI CATI ON Installed by Approved Contractors Intelligent Membrane Trade Association BOARD July 2005 Ln2 IN PURSUIT OF EXCELLENCE Proflex Pour & Roll Systems 12 The latest composite reinforcing technology combines with traditional pour & roll application techniques. Up to 20 years insurance backed guarantee FireSmart Therma Screed Insulated Roof Drainage System Lightweight Tapered Insulation System for Roof Drainage Technical Support 15 Ancillary Products 16 TeamIcopal Approved Contractors Technical & Performance Data

4 Profiles High Performance Torch Applied Waterproofing Systems Overview Benefits 1 2 The Anderson Monarflex Profiles System is a range of products designed to save time and money during the installation of new or refurbished flat roofs, while also ensuring exceptional, proven performance. Membranes can be applied with a low flame up to 30% faster than traditional Torch Applied products, while an advanced reinforced composite membrane structure and a unique in-built water vapour release feature help to maintain roof integrity in today s flexible building structures. Description The combination of specially formulated low heat reactive resin blends and grooved technology allows application up to 30% faster than traditional membranes, saving time and labour costs. Striped resinous profiles release water vapour to help eliminate blistering and prolonging roof life. Bonding strength and lap security exceed traditional fully bonded membranes. 3 RANGE OF COLOURS Profiles cap sheets are available in: 1 Brown Mineral 2 Green Mineral 3 Blue/Grey Mineral and White to order The Anderson Monarflex Profiles range comprises polyester reinforced SBS modified membranes with vapour pressure control and patented grooved adhesive technology, insulation boards and vapour control layers. Exceptional tensile strength, puncture resistance and flexibility for long term durability. Low flame application with no bitumen boilers gives safer application. Lower energy costs during application. Versatile system suitable for metal decking, screeded woodwool and concrete substrates primed with Icopal Bituminous Primer. Also suitable for approved grades of plywood and OSB timber decks. 4

5 Distinctive stripes eliminate blistering Groove technology gives you 100% adhesion up to 30% faster 5m 7.0m 10m Anderson Monarflex Profiles membranes incorporate specially developed low heat reactive resin blends with a patented groove surface pattern. Only a minimal application of heat is required to disperse the plastic film and activate the adhesive properties of the resins. The heat is channelled rapidly along the grooves giving a forward melt effect which allows the membrane to be unrolled and fixed up to 30% faster than conventional Torch Applied membranes. A 100% secure bond is achieved immediately. TRADITIONAL TORCH-ON 30% FASTER APPLICATION GROOVED PROFILES Within the Anderson Monarflex Profiles system, resins are profiled in a distinctive stripe pattern on the underside of the underlay membrane and on the top surface of the vapour control layer. Between the stripes is a quartz sand mixture coating. When the underlay membrane is bonded to the insulation, resin-free channels are formed which conduct water vapour to the outside under its own pressure. This eliminates the danger of vapour-induced blistering that can cause premature failure of the waterproofing in conventional systems. FA S T E R 30% I N S TA L L ATIO N Composite reinforcements give unbeatable strength per unit weight The membranes in the Anderson Monarflex Profiles range offer exceptional performance. Fully isotropic, the membranes have exact uniformity of structure in all directions giving guaranteed dimensional stability. This is combined with the proven properties of polyester and glass reinforcement which adds great strength and high elongation at break. 5

6 Profiles Cont. High Performance Torch Applied Waterproofing Systems Anderson Monarflex Profiles Product Range The Anderson Monarflex Profiles products used in the application examples that follow are: Profiles XL Cap Sheet High performance torch applied cap sheet with SBS modified bitumen and a composite polyester reinforcement. Grooved underside with torch dispersible film. Upper surface coloured mineral in green, blue/grey, brown and white (made to order) with 75mm selvedge. Profiles Vent XL Underlay High performance SBS modified membrane with heavy duty glass reinforcement. Underside features bonding stripes for vapour dispersion. The upper surface is sanded. INSTALLATION OF THERMAZONE PIR PLUS TORCH APPLIED INSULATION Exposed edges of Thermazone PIR Plus Torch Applied Insulation must be protected at all times when applying subsequent boards using the Icopal Tee Guard. The Tee Guard s specially designed hinge arrangement allows easy protection of the surrounding boards. It is positioned between the torch flame and the insulation boards whilst torch activating the Profiles Vapour-Vent XL before the boards are placed into position. Thermazone PIR Plus Torch Applied Insulation Board Bituminised glass tissue/polypropylene fleece to topside and mineralised glass tissue to underside. HCFC free, ODP Zero. Available in a range of thicknesses and tapered to falls. Profiles Vapour-Vent XL Vapour Control Layer High performance torch applied SBS modified membrane with extra strong aluminised core. Upper surface features bonding stripes for torch application of insulation. 6

7 Profiles Built-Up Roofing Systems 20 Pro-Spec Year Guarantee Suitable for Metal Decking, Screeded Woodwool and Concrete substrates primed with Icopal Primer. Also suitable for approved grades of Plywood and OSB Timber Decks. Profiles XL, Mineral Surface Cap Sheet Profiles Vent XL Thermazone PIR Plus Torch Applied Insulation Board Magnification of patented grooves system, Profile XL Profiles Vapour-Vent XL Icopal Primer Concrete Deck 7

8 Profiles Solo High Performance Torch Applied Single Layer Refurbishment Membrane System RANGE OF COLOURS Profiles Solo cap sheets are available in: 1 Brown Mineral 2 Green Mineral 3 Blue/Grey Mineral and White to order Overview Profiles Solo is a single layer membrane that provides a fast and cost effective solution to the problem of upgrading existing flat roofs to increase their working life. A unique in-built water vapour dispersion feature helps to release any moisture trapped within the old structure after refurbishment, eliminating the danger of blistering or seam damage due to vapour pressure. Description Profiles Solo is an advanced SBS modified composite membrane that combines the strength and flexibility of polyester fibres with additional reinforcement to give the guaranteed dimensional stability which is critical in single layer applications. The underside of the membrane has striped vapour dispersion profiles beneath a torch-dispersible film, while the topside is mineral coated. Distinctive Stripes Eliminate Blistering The underside of the Profiles Solo membrane has a distinctive profiled stripe pattern. Between the stripes is a quartz sand mixture coating. When the membrane is applied, resinfree channels are formed which conduct water vapour to the outside under its own pressure. This eliminates the danger of vapour-induced blistering that can cause premature failure of the waterproofing in conventional systems. Benefits Striped resinous profiles release water vapour to help eliminate blistering, allowing renovation of an existing roof at an economical cost. Minimal application of heat disperses the protective film and activates the adhesive properties of the resin to allow fast application. Bond strength and lap security exceed to traditional fully bonded membranes. Exceptional tensile strength, puncture resistance and flexibility for long term durability. Low flame application. Lower energy costs during application. 8

9 Profiles Solo Application The use of Profiles Solo as a single layer refurbishment solution is recommended for roofs with a relatively even surface. Blisters and wrinkles should be cut away and the surface thoroughly cleaned. The prepared area should be primed using Icopal primer. FREE SITE SURVEYS Members of the Icopal technical team will be pleased to carry out a full inspection of an existing substrate to advise on its suitability for single layer refurbishment. Inspection of the Roof Before single layer refurbishment is specified the roof should be thoroughly inspected. The use of Profiles Solo without total removal of the existing waterproofing is appropriate if: The existing roof construction is sound and not seriously damaged by moisture, heat, etc. Serious damage may call for complete replacement of the underlying structure. The original materials including the roof membrane can be incorporated in the renovation. The Importance of Vapour Dispersal Most old roof structures will have suffered moisture penetration through damage, weathering or cracks. Under a hot sun this moisture can expand in volume by a factor of 1500, producing potentially damaging pressure beneath the waterproofing layer. By specifying Profiles Solo water vapour will be safely released following refurbishment, eliminating the danger of pressure-induced blistering or seal damage. The vapour control layer is still performing adequately. The insulation is still performing to the required standard. Single Layer Refurbishment for Existing Systems 12 Year Pro-Spec Insurance Backed Guarantee This system is recommended to refurbish ageing roofs which have not yet been damaged by water ingress and are structurally sound. Profiles Solo Icopal Primer Existing Build-Up Roofing Existing Insulation Existing Vapour Barrier Existing Plywood Deck 9

10 Thermaweld Metal Faced High Performance Torch Applied Metal Faced Membrane Systems Overview Anderson Monarflex Thermaweld Metal Faced membranes are designed for high profile buildings where they provide highly durable and decorative metal faced torch applied cap sheets for elastomeric roofing systems. Description Anderson Monarflex Thermaweld Metal Faced membranes combine durable metal facings with an SBS elastomer modified membrane to give exceptional flexibility and durability. The metal facings are embossed throughout with movement joints to ensure that they don t tear, distort or delaminate even under extreme weather conditions. Thermaweld Copper and Aluminium faced membranes are also available in a smooth finished, self-adhesive strip format to simplify detail work in areas like upstands, parapets and pipework. Benefits Stunning finishes for all styles of roof construction including those with complex detailing. Resistant to thermal stress. Long service life. SBS modified for greater elasticity and durability. Puncture resistant. Easy to handle self adhesive membranes for detailing. Excellent fire ratings. Naturally Attractive The metal faces of Thermaweld oxidise on exposure to the atmosphere and the process begins immediately after manufacturing. The initial surface appearance of the foil will vary according to length and conditions of storage. The speed of oxidation when on the roof will depend on local atmospheric conditions. COLOURS Thermaweld Aluminium Thermaweld Copper 10

11 Anderson Thermaweld Metal Face Section Thermaweld Metal Faced Thermaweld Metal Underlay Thermazone Torch Top Insulation Nails Vapourflex Vapour Control Layer Timber Boarded Deck HT Polyester 180 Sand Nailed to timber boarding Typical Detail Fixing Batten Detail Sloping Roof Over 5 Degrees Thermaweld Metal Faced Thermaweld Metal Underlay Head Lap Fixing Vapourflex Vapour Control Layer HT Polyester 180 Sand Nailed to timber boarding Thermazone Torch Top Insulation Timber Boarded Deck 11

12 Proflex High Performance Pour & Roll Waterproofing Systems Overview 1 Anderson Monarflex Proflex systems combine the latest polyester and glass composite reinforcing technology with traditional pour & roll application techniques to provide the very highest levels of dimensional stability, strength and durability giving long-term cost-effective roofing performance even in today s lighter, more flexible building structures. 3 2 Description The Proflex range comprises polyester reinforced SBS modified membranes, preparation layers, insulation boards and vapour control layers. The advanced composite Proflex pour & roll cap sheet achieves outstanding cold bend characteristics in excess of 20ºC. RANGE OF COLOURS Proflex cap sheets are available in: 1 Brown Mineral 2 Green Mineral 3 Blue/Grey Mineral and White to order Benefits Very high levels of directional stability. Excellent low temperature characteristics. High tensile strength. High elongation at break to retain integrity during building movement. High tear resistance and burst strength to resists roof traffic during construction and on-going maintenance. CERTIFICATE No 04/

13 Proflex Product Range The Proflex products used in the application examples that follow are: Proflex Pour & Roll Cap Sheet The high performance pour & roll cap sheet is an SBS modified composite membrane reinforced with polyester. Underside sanded. Upper surface coloured mineral in green, blue/grey and brown with 75mm selvedge. Proflex 250 and 180 Underlays High performance SBS modified membrane with either 250gsm or 180gsm polyester reinforcement. Upper and lower surfaces sanded. Proflex Preparation layers Proflex Perforated Preparation Layer Used to achieve a partially bonded systems which allow venting of vapour from moisture sensitive decks to prevent possible membrane blistering. A special glass fibre, bitumen coated base is finished with slate flakes on the underside and fine sand top finish. Uniform holes allow bitumen to penetrate the surface of the sheet creating a partial bond of the second membrane layer. Proflex Sanded Preparation layer A special glass fibre reinforced, bitumen coated base with a fine sand finish to both surfaces of the roll. Thermazone Pour & Roll Insulation Boards Icopal s Thermazone range of rigid thermal insulation offers a wide choice of high quality and environmentally friendly solutions. Thermazone Full Bond Pour & Roll Board High quality 13mm perlite top surface laminated to CFC /HCFC free PIR Plus foam for fully bonded waterproofing attachment. The Perlite facing has a thermal conductivity (Lambda Value) of w/mk. Thermazone PIR Plus Pour & Roll CFC/HCFC free PIR Plus Foam with bitumised glass tissue on both sides. These are available in a range of thicknesses and tapered to falls. Proflex Vapour Control Layer High performance pour & roll SBS modified membrane with high strength polyester reinforcement and aluminium core. Upper and lower surfaces are sanded. 13

14 Proflex Cont. High Performance Pour & Roll Waterproofing Systems Warm Roof Partially Bonded Specifications 20 Year Pro-Spec Guarantee Proflex Pour & Roll Mineral Surfaced Cap Sheet Proflex 250 Sanded Underlay Proflex Perforated Preparation Layer Thermazone PIR Plus Pour & Roll Proflex Vapour Control Layer Icopal Primer 15 Year Pro-Spec Guarantee Proflex Pour & Roll Mineral Surfaced Cap Sheet Proflex 180 Sanded Underlay Proflex Perforated Preparation Layer Thermazone PIR Plus Pour & Roll Proflex Vapour Control Layer Icopal Primer Warm Roof Fully Bonded Specifications 20 Year Pro-Spec Guarantee Proflex Pour & Roll Mineral Surfaced Cap Sheet Proflex 250 Sanded Underlay Proflex Sanded Preparation Layer Thermazone Full Bond Pour & Roll Proflex Vapour Control Layer Icopal Primer 15 Year Pro-Spec Guarantee Proflex Pour & Roll Mineral Surfaced Cap Sheet Proflex 180 Sanded Underlay Proflex Sanded Preparation Layer Thermazone Full Bond Pour & Roll Proflex Vapour Control Layer Icopal Primer 14

15 Technical Support Technical Services Anderson Monarflex Waterproofing Systems are fully supported with a comprehensive range of support services to architects, surveyors and design & build professionals including: Design assistance. Free site surveys. NBS Support To simplify specification and help ensure compliance, NBS specification clauses for all Icopal products are included in the NBS PLUS section of NBS Specification Writer/ Specification Manager software. Copies of the clauses are also available from our Technical Services Team. Specialist inspections of existing substrates prior to application of single layer membrane. Detailed specifications. Condensation risk analysis. All contracts monitored by Icopal inspectors. Consultancy All technical consultants are experienced in all types of roofing applications and can provide advice on all aspects of membrane specification and installation from the initial design stage to site visits should further guidance be needed. Research and Development To maintain its position as world leader in building membrane technology Icopal has an on-going programme of product research and development, pushing forward levels of performance while helping to control your costs. CPD Seminars As a member of the RIBA CPD Providers Network. We are happy to provide RIBA approved CPD presentations to specifiers and designers. Please call for more information. RIBA Product Selector Full information on the Icopal range can be found in the RIBA PRODUCT SELECTOR and PRODUCT SELECTOR-plus CD. A wide range of technical information including detail drawings in CAD, DXF and PDF format are also available at For our Technical Services Team please call or technical@icopal.co.uk 15

16 Ancillary Products All Anderson Monarflex systems are complimented by a comprehensive range of ancillary products to ensure maximum compatibility and single source responsibility for the waterproofing system. All ancillary products shown will be covered by the Anderson Monarflex roof waterproofing guarantee. Where appropriate we will be pleased to provide detailed CAD drawings. More detailed information on ancillary products is available on request. Primers Roofgard Roof Outlet Grate Metal and concrete decks, and masonry must be primed prior to applying membranes with Anderson Monarflex Primer for the system to be guaranteed. 1. Parapet Outlet 2. Lead Chute 3. Steel Chute 4. Extension 5. Parapet Outlet Grate Roofgard Outlet Range A range of stainless steel factory sealed units designed to drain water effectively from a flat roof. Independently tested, the Roofgard Outlet Range exceeds one of the highest technical standards: DIN Available as straight or parapet drainage options and in a range of sizes to suit all standard pipework. 3 Roofgard Cowled Telescopic Vent A system in stainless steel comprising: 1 2 Upstand Pipe with an SBS modified polyester reinforced flange positioned externally around the soil vent pipe. Telescopic Double Pipe. This slides into the upstand pipe and also into the soil vent pipe. Vented Cowl. Covers the top of the telescopic double pipe, fixed with a self-tapping screw Upstand Pipe 2. Telescopic Double Pipe 3. Vented Cowl Roofgard Cable & Tube Duct Consists of a high quality stainless steel pipe incorporating a polymer modified polyester reinforced membrane flange for extra durability, capped with two socket end PVC pipe elbows. The felt flange is incorporated within the layers of a built-up felt roofing system. The stainless steel pipe provides a rigid 300mm upstand. 16

17 Antrim Roof Edge Trims The Anderson Monarflex Roof Edge Trim range provides a superior and effective roof edge trim to built-up felt roofing. Quick and easy to install, they will retain their colour and shape for the life of the building. Available in GRP, or Aluminium finish. Anchor-Fast Lightning Conductor Pads Anchor-Fast allows thermal movement of the conductor, with a guaranteed bond area for secure fixing. It eliminates the hazards created by lightning conductor tape that will not stay in place. Available in all colours. Icopal Roof Safety Systems Current Health & Safety Legislation requires any person working at height close to an exposed edge or fall should be properly protected against the risk of falling. Anderson Monarflex Roof Safety Systems provide an affordable means of continuous protection from falls from height in compliance with current legislation. Systems available include Kwikline Cable Based Systems Cable based fall arrest and restraint systems. Kwikguard Edge Protection System Free standing, fixed rail system that does not penetrate the roof surface and compromise the waterproofing. 17

18 Technical & Performance Data Profiles Torch Applied System Properties CAPSHEETS VAPOUR DISPERSION VAPOUR CONTROL Length (m) Width (m) Max Roll Weight (kg) Max Weight/ Unit Area (kgm -2 ) Tensile Strength (N/50mm) L T Resistance to Tearing (N) L T Profiles XL ºC Profiles Vent XL Layer ºC Profiles Vapour-Vent XL VCL ºC Profiles Solo Torch Applied Properties CAPSHEETS Length (m) Width (m) Max Roll Weight (kg) Max Weight/ Unit Area (kgm -2 ) Tensile Strength (N/50mm) L T Elongation at Rapture (%) L T Low Temp Flexibility Mullen Burst KNm -2 Profiles Solo Thermaweld Metal Torch Applied System Properties CAPSHEETS Thermaweld Aluminium ºC Thermaweld Copper ºC SELF-ADHESIVE STRIPS Aluminium 10 Copper 10 METAL UNDERLAY INSULATION BOARDS Thermazone PIR Plus Torch Applied Length (m) Width (m) 0.1/0.25/ 0.65/ /0.15/0.2/ 0.3/0.6 Thermazone Torch Applied Insulation Board Max Roll Weight (kg) Thickness Max Weight/ Unit Area (kgm -2 ) Tensile Strength (N/50mm) L T Board Size Resistance to Tearing (N) L T Thermaweld Metal Underlay ºC VAPOUR CONTROL Lambda Value W/m 2 K Low Temp Flexibility Vapourflex Vapour Control Layer ºC 50mm, 60mm, 70mm, 80mm, 600mm x 600mm yes 90mm, 100mm 600mm x 600mm yes HCFC Free Thickness of Insulation Required U-Value Achieved W/m 2 K FLAT ROOF SUBSTRATES WITH WARM ROOF BUILD UP Metal Deck, No Ceiling 100mm 0.24 Metal Deck, Woodfibre Suspended Ceiling 90mm 0.24 Dense Concrete Block with Plasterboard Suspended Ceiling 90mm 0.24 Dense Concrete Block with Woodfibre Suspended Ceiling 90mm 0.24 Plywood or Timber with Plasterboard Ceiling 90mm 0.24 Plywood or Timber with Woodfibre Ceiling 90mm All values are nominal unless stated.

19 Proflex System Properties CAPSHEETS Length (m) Width (m) Max Roll Weight (kg) Max Weight/ Unit Area (kgm -2 ) Tensile Strength (N/50mm) L T Resistance to Tearing (N) L T Low Temp Flexibility Proflex Pour & Roll Cap Sheet ºC UNDERLAYS Proflex 250 Underlay ºC Proflex 180 Underlay ºC PREPARATION LAYERS Proflex Perforated Underlay ºC Proflex Sanded Preparation Layer ºC VAPOUR CONTROL Proflex Vapour Control Layer ºC Thermazone Pour & Roll Insulation Board INSULATION BOARDS Thermazone PIR Plus Pour & Roll Thermazone Full Bond Pour & Roll Thickness Board Size PIR Foam Lambda Value W/m 2 K 50mm, 60mm, 70mm, 80mm, 1200mm x 600mm yes 90mm, 100mm 1200mm x 600mm yes 50mm, 60mm, 70mm, 80mm, 1200mm x 600mm yes 90mm, 100mm 1200mm x 600mm yes HCFC Free Thermazone PIR Plus Pour & Roll Thermazone Full Bond Pour & Roll Thickness of Insulation Required U-Value Achieved W/m 2 K Thickness of Insulation Required U-Value Achieved W/m 2 K FLAT ROOF SUBSTRATES WITH WARM ROOF BUILD UP Metal Deck, No Ceiling 100mm mm 0.25 Metal Deck, Woodfibre Suspended Ceiling 90mm mm 0.23 Dense Concrete Block with Plasterboard Suspended Ceiling 90mm mm 0.23 Dense Concrete Block with Woodfibre Suspended Ceiling 90mm mm 0.25 Plywood or Timber with Plasterboard Ceiling 90mm mm 0.25 Plywood or Timber with Woodfibre Ceiling 90mm mm 0.25 Insulation Boards Achieving the required U-Value The Buildings Regulation Part L requires the U-Value of flat roofs to be 0.25W/m 2 K. The above tables show the thickness of system insulation needed to achieve the minimum requirement of part L. The calculation method used to determine the U-Values within a build up is in compliance with BS EN ISO All values are nominal unless stated. 19

20 CI/SfB 47 August 2005 Ln2 Icopal Ltd Barton Dock Road Stretford, Manchester M32 0YL Telephone: Fax: Technical Fax: Northern Ireland Telephone: Fax: Total Building Protection from Icopal Protection for Flat Roofs Fire Protection Roofing Systems Flame Free Application Technology Non-Combustible Insulation Built Up Roof Systems Single Ply Roof Systems Green Roof Systems Republic of Ireland Freephone Facility Telephone: Fax: Intelligent Membrane Trade Association The Intelligent Membrane range covers a comprehensive choice of waterproofing products and accessories for Flat and Pitched Roofing. For further information please contact: Intelligent Membrane Trade Association P.O. Box 74, Stretford, Manchester M32 0XN Telephone: Fax: ima@icopal.com Every effort has been taken in the preparation of this brochure to ensure the accuracy of representations contained herein. Recommendations as to the use of materials, construction details and methods of installation are given in good faith and relate to typical situations. However, every site has different characteristics and reliance should not be placed upon the foregoing recommendations. Advice can be given as to specific applications of the products, upon request. Design Ref: ICO0400/RP0805 Liquid Waterproofing Systems Sound Protection Monarflex Acoustic Systems for New Build and Refurbishment Structural and Bridge Deck Protection Damp Proof Membranes Damp Proof Course and Cloaks Containment Membranes Gas Control Systems for Methane and Radon Tanking/Below Ground Waterproofing Bridge Deck Waterproofing Protection for Pitched Roofs Warm Pitched Roof Systems including Breather Membranes, Insulation and Air Leakage Barriers Standard and Fire Retardant Vapour Control Layers Non-permeable Roof Tile Underlays Decra Lightweight Steel Roofing Systems Protection for People and the Worksite Standard and Fire Retardant Scaffold Sheeting with Logo Printing Service Engineered Fall Protection Safety Systems