Verified by manufacturer 18 days ago
Waterproof membrane incorporating four layer technology and a proprietary ELVALOY™ Ketone Ethylene Ester (KEE) based formula.
FiberTite® XT FB 'fleece-back' features a reinforced polyester knit fabric, coated with a proprietary compound, utilizing ELVALOY™ Ketone Ethylene Ester (KEE) as the principle polymer in the hybrid vinyl alloy coating.
It is a nominal 1.27 mm thick membrane and is an Xtra-Tough version of the FiberTite family of membranes, which not only meets or exceeds the minimum physical property requirements in EN 13956 and ASTM D6754-15 Standard Specification for Ketone Ethylene Ester (KEE) Based Sheet Roofing, but it surpasses the physical properties and performance characteristics versus many other thicker membranes.
The membrane incorporates a 135 g/m² non-woven polyester felt, heat bonded to the underside of the membrane with a 75 mm selvedge edge for field welding. It is manufactured in conventional 1.83 x 24.38 m rolls.
Carefully manufactured to allow strict control over the production process, from the selection of the yarns, to the engineering, knitting and weaving of the base fabrics, to the final coating process.
All FiberTite Roofing Membranes are constructed using high tenacity/heavy weight yarns to create a base fabric reinforcement to provide superior puncture, tensile and tear resistance properties. The base polyester fabrics are primed with a unique and proprietary adhesive coat that lays the foundation to physically bond the KEE coatings to the 'fibre' to maximize seam strength and overall membrane performance.
The membrane is coated on the face and back with an original 'KEE' formulation to provide superior hot air welding characteristics, extreme UV resistance, broad chemical resistance and long-term flexibility and reparability for the installed roofing membrane system. It exhibits superior tear, puncture, fungus, algae and flame resistance. CE marked.
Color | White |
Finish | Smooth |
Material | Fabric |
Shape | Rectangle |
Length | 24380 mm |
Width | 1830 mm |
Height | 1.27 mm Guidance for specification option: Thickness. |
Warranty description | Manufacturer guidance25 year MOY Warranty. Subject to MOY Specification. |
Uniclass | |
CAWS | J42/28 Waterproof membrane J42/400 Waterproof membrane |
Material | ELVALOY™ Ketone Ethylene Ester (KEE). |
Standard | To BS EN 13956. |
Performance characteristics | |
External fire performance | Class F. |
Reaction to fire | Class E. |
Watertightness | Pass. |
Tensile properties | ≥3000 N/50mm. |
Tear resistance | ≥110 N. |
Integral backing fleece | Required. |
Width (minimum) | 1.82 m. |
Thickness (minimum) | 1.27 mm. |
Colour | DC196 Off White. |
Water vapour permeability | 2.67 g m²/ 24h-1. |
Resistance to water penetration | No staining. |
Water absorption | 1.03%. |
Resistance to static loading - 20kg load | >20 kg. |
Resistance to impact | Aluminum base: ≥ 500 mm, EPS base: ≥ 2000 mm. |
Peel resistance | ≥115 N/50mm. |
Dimensional stability | Longitudinal: -0.2%, Transverse: 0.0%. |
Durability | UV exposure: Pass. |
Contains Red List materials | No |
Country of material origin | United States |
Country of product manufacture | United States |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 6.7 kg CO₂ eq/m² Self declared |
Recyclability | The by-products of the manufacturing process could be recycled internally. Where membranes have become contaminated by external agents during service, they may be downcycled into other products or utilised in roof overlays. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
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