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Roofing Foils

Underlayment roofing foil protects the wooden parts of the roof structure and provides thermal insulation against the penetration of water and water vapour produced by human activities inside buildings. And it further prevents the penetration of water, snow, wind, and dirt from the outside into the under-roof spaces.

The foils are supplied in rolls with a width of 1.5 m and a length of 50 m.

If the purchased foil is not installed immediately, we recommend storing the rolls in a vertical position without exposure to sunlight and UV radiation.

Roofing Foils

Characteristics

  • Reliable protection of thermal insulation.
  • Reinforcement with a polyethylene grid.
  • Stabilization against UV radiation.
  • Easy installation.
Ilustrativní obrázek role Podstřešní reflexní fólie

Laying scheme
under-roof foil

Our selection of underlayment roofing foils

SVITAPFOL N vapour barrier foil

SVITAPFOL N underlayment roofing foil is a three-layer vapour barrier consisting of a high-strength polyethylene grid (HDPE) with polyethylene foil (LDPE) layers on both sides. It is used as an effective protection of thermal insulation against water vapour penetration.

Material 3 layers – polyethylene grid (HDPE), polyethylene foil (LDPE) on both sides
Roll width 150 cm
Weight 90, 110, 140 g/m2
Grid type leno fabric 1×1 cm
Thermal stability from -50 to +70 °C

SVITAPFOL AL N reflective vapour barrier foil

SVITAPFOL AL N underlayment roofing foil is a three-layer reflective vapour barrier consisting of a high-strength polyethylene grid (HDPE) with a polyethylene foil (LDPE) layer and aluminium foil. It is used as an efficient protection against water vapour penetration into the thermal insulation. The aluminium layer reflects radiant heat back into the interior, thus increasing the thermal insulation properties of the roof structure.

Material 3 layers – polyethylene grid (HDPE), polyethylene foil (LDPE), aluminium foil
Roll width 150 cm
Weight 120 a 160 g/m2
Grid type leno fabric 1×1 cm
Thermal stability from -50 to +70 °C

Alpet reflective vapour barrier foil

Four-layer material - polyethylene grid (HDPE), polyethylene foil (LDPE), and polyester foil with vapour-deposited aluminoum – guarantees high reflectivity (reflects the radiant component of heat back into the interior) as well as higher impermeability to water and water vapour. When properly installed, it protects both the thermal insulation and the roof trusses from moisture.

Material 4 layers – polyethylene grid (HDPE), polyethylene foil (LDPE), polyester foil with vapour-deposited aluminium
Roll width 150 cm
Weight 90, 105, 110, 120, 130, 140, 150, 160, 170 g/m2
Grid type leno fabric 1×1 cm
Thermal stability from -50 to +70 °C

SVITAPFOL D vapour permeable foil

Three-layer material – polyethylene fabric (HDPE), polyethylene foil (LDPE) on both sides. To achieve vapour permeability, the foil has micro-perforations over the entire surface.

Material 3 layers – polyethylene foil (HDPE), polyethylene foil (LDPE) on both sides
Roll width 150 cm
Weight 90, 110, 140 g/m2
Grid type leno fabric 1×1 cm
Thermal stability from -50 to +70 °C

Our other foils

Logo SVITAPFOL (bílí + barva) - Český výrobce polyetylenových fóliíLogo SVITAP (bílé) - český výrobce technického textilu

SVITAP s.r.o.

Boženy Němcové 499/10
568 02 Svitavy

VAT: CZ46509755

Data box ID:: ib8srvb

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