Verified by manufacturer 2 months ago
Excel WR Single Layer System - Concrete Roof Slab (In-situ/ Pre-cast)
BBA Agrément Certificate
Certificate type
Single layer-layer, warm roof, Alpa polymeric binder, Reinforced Bitumen Membrane (RBM ) waterproofing system. Suitable for new build and refurbishment applications.
Suitable for new builds and refurbished construction projects, used as a single layer.
Single-layer, torch-applied, warm roof, Alpa polymeric binder, reinforced bitumen membrane (RBM) waterproofing system. Suitable for new build and refurbishment applications.
The top surface is finished with coloured ceramic granules or mineral slate chippings, while the under surface is finished with a thermofusible film. Minimum selvedge width is 8 cm.
Features and benefits:
Application method:
Installed fully or partially bonded with fully sealed joints, using hot air fastening and torch-on techniques to form a continuous layer:
Color | Black Guidance for specification option: Charcoal. Grey Guidance for specification option: Charcoal. |
Finish | Mineral Guidance for specification option: Mineral slate chippings. |
Material | Bitumen Guidance for specification option: Alpa® mix polymer modified membrane. |
Shape | Other |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | 30 year Guidance for specification option: The Excel Multi layer warm roof system achieves an insurance backed guarantee of up to 30 years. Guarantee options are: Platinum Insurance Backed Guarantee ( Workmanship, Design, Materials, Installer Solvency Insurance). Goldshield Guarantee (Workmanship, Design, Materials). Silvershield Guarantee (Workmanship, Materials). Bronzeshield Guarantee (Materials). |
Uniclass | |
CAWS | J41/10 Reinforced bitumen membrane warm deck roof covering J41/110 Built-up reinforced bitumen membrane warm deck roof covering |
Product range |
Preparation | |
Horizontal work | Vernis Antac primer.Guidance for specification option: Solvent-based, rapid drying bituminous primer specially modified with an adhesive. The product is supplied ready to use. Priming of concrete, timber or metal roof deck/ slabs in preparation for receiving bituminous membranes.
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Air and vapour control layer | |
Type | Roll 25 Alpa Alu.Guidance for specification option: Glass-fibre/ aluminium reinforced bitumen air and vapour control layer with ALPA binder. It has semi-continuous strips of self-adhesive bitumen on the surface, protected by a thermofusible film, and a thermofusible film on the undersurface. Once installed, the product provides a temporary waterproofing layer, allowing internal works to be carried out immediately.
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Insulation | |
Type | Hytherm BF.Guidance for specification option: Designed to provide optimum stability and structural integrity.
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Fixing | Hyrastik EVO.Guidance for specification option: Single-component, moisture-curing polyurethane insulation adhesive. |
Waterproof covering | |
First layer | |
Type | Hyranger TS CPV.Guidance for specification option: HYRANGER TS CPV is a stabilised polyester reinforced SBS elastomeric modified bitumen waterproofing membrane. It can be used as a base or intermediate layer of multi-layer waterproofing system for flat roofs. It can also be used as the top layer under site applied added protection. |
Top layer | |
Type | Excel Capping Sheet.Guidance for specification option: Torch-applied, reinforced Alpa Polymer, modfied self-finished bitumen waterproofing membrane.
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Attachment | Flame free hot air welded.Torch-on.Manufacturer guidanceInstalled fully or partially bonded with fully sealed joints, using the fastening techniques to form a continuous layer. |
Detail work | |
Flashings | 35 PY Angle Reinforcement.Guidance for specification option:
Hyranger Spot ADH. |
Skirtings and upstands | 35 PY Angle Reinforcement.Guidance for specification option: Polyester reinforced SBS elastomeric membrane.
Axter 35 PY Angle Reinforcements fully bonded in accordance with Axter Ltd recommendations. |
Ancillary items | Axtrim.Guidance for specification option:
Axtrim aluminium termination bars.Guidance for specification option:
Axtrim GRP termination bars.Guidance for specification option:
Rainwater outlets.Guidance for specification option:
Sump outlet.Guidance for specification option:
Wide parapet outlet.Guidance for specification option:
Universal leaf guard.Guidance for specification option:
Parapet leaf guard.Guidance for specification option: The solid parapet leaf guard is attached to the inside of the outlet and is fully adjustable to fit all three parapet outlet sizes. Hyflow leaf guard.Guidance for specification option:
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Surface protection | Self Protected Excel Capping Sheet. |
System accessories | Lightning conductor clips.Guidance for specification option:
Rooflights/ access hatches.Guidance for specification option: Consult manufacturer for details. Solar PV Flex.Guidance for specification option:
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Execution | Manufacturer guidanceWhere required installed to a zero fall or laid to falls. All in accordance with the manufacturer’s guidance, third party certification and British Standard documentation BS 6229: 2018. The structural deck must be clean and dry with moisture content below 6%. The deck should be cleaned ensuring the removal of all dust and loose material using approved methods. Please refer to Axter Ltd substrate preparation document for further guidance. |
System completion | Interim and final roof inspections by AXTER Quality Assurance (QA) personnel. Final roof inspections by AXTER Quality Assurance (QA) personnel are mandatory for guarantee application. |
Certification | BBA approved, accepted by all third party building warranty providers such as LABC and NHBC. Fully compliant with The Building Regulations and all relevant British and harmonized European standards. |
Structure | Concrete Roof Slab (In-situ/ Pre-cast). Manufacturer guidance
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Underlayer | Hyranger Spot ADH. Guidance for specification option: Self-adhesive, stabilized polyester, reinforced SBS elastomeric modified bitumen waterproofing membrane. The under surface is covered with a peel-off film. The under surface and side lap are self-adhesive.
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Fire performance | Unrestricted to NBR – Part B and Broof(t4) to BS EN 13501-5: 2005. Guidance for specification option: Classified unrestricted by the requirements of Part B of the National Building Regulations and deemed Broof(t4) in accordance with BS EN 13501-5:2005 fire classification of construction products and building elements. |
Finish layer | Bonded surface decorative aggregates. Loose surfacing decorative aggregates. Reinforced bitumen roofing sheets. Pavers on supports. Dalle Ceramic Tiles on Axter adjustable paving supports. |
Material | Bitumen Guidance for specification option: Alpa® mix polymer modified membrane. |
Recyclability | Guidance for specification option: 100% of polymer modified bitumen membrane production waste is recycled and taken for re-use in the manufacture of asphalt. Manufacturer guidance
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Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 10 % Guidance for specification option: Minimum content |
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
Platform | Compatible | Version |
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- | 1 | |
- | 1 |
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