What is a waterproofing film

What you need to know about the waterproofing film

In structure, this is a four -layer metallized film that is suitable for all types of roofs with and without. It is laid on the insulation, without leaving the ventilation gap. The seams are glued with aluminum tape.

To preserve the reflective effect between foil and interior decoration, you need to retreat at least 4 cm.

Polyethylene films are perforated and non -certified. The former belong to waterproofing films. But due to low vapor permeability and high price, they are practically not used. The second is attributed to vapor barrier films and with the same indicators and relatively inexpensive cost are actively used as waterproofing and vapor barrier.