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X-Foil Roof

X-Foil Roof is a suspended water and diffusion-tight underlay roof consisting of a fabric of HD polyethylene, coated on both sides with a layer of LD polyethylene. The material is heat, UV, and alkali stabilized.

Safe from breakthrough and installed without a solid wooden base
Third-party quality control conducted by RISE
At least 50 years of aging resistance
UV-protected for up to 2 months
Lightweight

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Application Area

Water and diffusion-tight underlay roof "hanging" directly on the rafters with a maximum center distance of 1200 mm for use under roof tiles or profiled sheet metal (AMA Hus-11, JSC.65). Minimum roof pitch 14° (1:4)

Installation

Install over rafters with a maximum center distance of 1200 mm, freely without a base. Fasten with nail battens and support battens. For approved installation, see separate installation instructions.

Important!

Rolls should be stored protected from sunlight (UV) and precipitation.
TECCA T-Butyl splice tape is an approved splicing aid and sealant.
The underlay roof is installed hanging over the rafters with a slight sag. Not completely flat on solid wooden surfaces!
The roof's surface layer determines the minimum roof slope for the underlay, but always at least 14° (1:4).
X-Foil Roof is a diffusion-tight underlay roof where optimal function requires ventilation (at least 25 mm). Ventilation should occur from the eaves to the ridge.
X-Foil Roof meets the requirement for fall-through safety when all fixing such as nailing and battening (nail and load-bearing battens) of the membrane is complete! The maximum c-distance for roof beams is 1200 mm.
The use of TECCA Distans for underlay roofing is recommended to be centered under at least every other support batten (approximately 2 pieces/m2 of roof) for better fixation of the sheet and its overlap between the rafters.
No depressions or backfalls should form in the underlay roof during fastening and fixing.
Rolls should be stored on a flat and dry surface and protected from sunlight (UV) and precipitation.
After installation, the underlay roof should be completely enclosed and protected from sunlight (UV-).
Always cover with the surface layer as soon as possible to avoid impact from bad weather.

This product is part of TESHELL® and is covered by our warranty program. Read more here

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Specification

Technical specification

Material: HD polyethylene reinforcement with LD polyethylene coating on both sides
Surface weight (min): 140 g/m²
Length: 25 m
Width: 1350 mm (2740 mm, see X-Foil Duo)
Roll weight: 5 kg
Vapor tightness: Sd= 90m (3,4 x 10⁶ s/m)
Waterproofness: Dense
Aging resistance: At least 50 years