RELATED MATERIALS
DELTA‑FOL PVG – waterproofing roof membrane
DELTA‑FOL PVE – waterproofing roof membrane
DELTA‑VENT S – waterproofing roof membrane
DRAGOFOL – white waterproofing roof membrane
DELTA‑FOL LP – transparent waterproofing roof membrane
I. NATURE OF THE PROBLEM – REQUIREMENTS
A tiled roof is not fully water‑tight; water can penetrate through cracks or under certain wind and rain conditions. To waterproof tiled roofs, special membranes are installed beneath the tiles. These membranes must be vapour‑permeable to prevent condensation that damages roof beams and causes moisture below; they must be durable and resistant since they are hard to access after installation; they should have high tensile strength to avoid tearing; and they must be lightweight and easy to install on sloping roofs.
II. SOLUTION
Waterproofing membranes such as DELTA‑VENT S, DELTA‑FOL PVG, DELTA‑FOL PVE, DRAGOFOL and DELTA‑FOL LP meet these requirements. They provide complete waterproofing even on low‑sloped roofs, are lightweight and vapour‑permeable, have high tensile strength and flexibility for fitting around gutters and roof windows, and offer high fire resistance. The vapour‑permeability of DELTA‑VENT S, DELTA‑FOL PVG and DELTA‑FOL PVE is inherent in their polymer composition, while DRAGOFOL and DELTA‑FOL LP achieve it through micro‑perforation (these perforated membranes should not be placed directly on sheathing where water could penetrate).
III. APPLICATION
The waterproofing membrane is laid under the roof tiles. Sheets should be laid horizontally across the roof slope and wedged between rafters or planking. Start from the lowest part of the roof so that overlaps face the direction of water flow. Each successive sheet overlaps the previous one by at least 10 cm (about 20 cm when the roof slope is less than 22°). The membranes should sag slightly between rafters to prevent water from running along nail lines.
DELTA‑FOL PVG – waterproofing roof membrane
DELTA‑FOL PVE – waterproofing roof membrane
DELTA‑VENT S – waterproofing roof membrane
DRAGOFOL – white waterproofing roof membrane
DELTA‑FOL LP – transparent waterproofing roof membrane
I. NATURE OF THE PROBLEM – REQUIREMENTS
A tiled roof is not fully water‑tight; water can penetrate through cracks or under certain wind and rain conditions. To waterproof tiled roofs, special membranes are installed beneath the tiles. These membranes must be vapour‑permeable to prevent condensation that damages roof beams and causes moisture below; they must be durable and resistant since they are hard to access after installation; they should have high tensile strength to avoid tearing; and they must be lightweight and easy to install on sloping roofs.
II. SOLUTION
Waterproofing membranes such as DELTA‑VENT S, DELTA‑FOL PVG, DELTA‑FOL PVE, DRAGOFOL and DELTA‑FOL LP meet these requirements. They provide complete waterproofing even on low‑sloped roofs, are lightweight and vapour‑permeable, have high tensile strength and flexibility for fitting around gutters and roof windows, and offer high fire resistance. The vapour‑permeability of DELTA‑VENT S, DELTA‑FOL PVG and DELTA‑FOL PVE is inherent in their polymer composition, while DRAGOFOL and DELTA‑FOL LP achieve it through micro‑perforation (these perforated membranes should not be placed directly on sheathing where water could penetrate).
III. APPLICATION
The waterproofing membrane is laid under the roof tiles. Sheets should be laid horizontally across the roof slope and wedged between rafters or planking. Start from the lowest part of the roof so that overlaps face the direction of water flow. Each successive sheet overlaps the previous one by at least 10 cm (about 20 cm when the roof slope is less than 22°). The membranes should sag slightly between rafters to prevent water from running along nail lines.
