Alkreflex® Roof 1.7 is a multilayer insulating and breathable membrane. It is waterproof, vapour-open, insulating and space-saving. It is particularly suitable for applications where gutters and fascia boards cannot, or can only minimally, be altered due to the available build-up height, such as listed buildings or terraced houses.
| Size | Article no. |
|---|---|
| 1.20 x 10 m | 8413012000 |
Alkreflex® Roof 1.7 should be installed as a vapour-open and waterproof layer on the cold side of the construction. The waterproof layer should face outwards.
For optimum performance, it is recommended to maintain a minimum 20 mm air gap adjacent to the reflective layer. Alkreflex® Roof 1.7 can be used in both new-build and renovation projects in roof and wall constructions.
Alkreflex® Roof 1.7 should be installed horizontally in overlapping, shingle-style courses. Alkreflex® Roof 1.7 features an overlap flap that provides excellent water drainage without increasing the overall build-up thickness.
The overlaps should be sealed along their entire length using VASTR® Spinvlies tape to achieve an airtight and watertight finish. The material should be secured between clamping battens.
For optimum reflective performance, a minimum 20 mm air cavity should be maintained on the aluminium reflective side.
