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Ventia 120 Vapour Permeable Roofing Underlay (VPU) - 50m x 1.5m Roll

Code:
VPU150M
Brand:
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Ventia VPU has a 3 layer composite structure with the highly vapour permeable film bonded between two layers of nonwoven polypropylene. The top polypropylene layer provides high levels of water resistance while the bottom layer provides the strength for this flexible breather m...Read More

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Description

Ventia VPU has a 3 layer composite structure with the highly vapour permeable film bonded between two layers of nonwoven polypropylene.The top polypropylene layer provides high levels of water resistance while the bottom layer provides the strength for this flexible breather membrane which can be used in both unsupported and fully supported applications.

Properties

Length: 50m
Width: 1.5m
Thickness: 0.55mm
Weight: 120gsm

Application
A vapour permeable membrane has 4 functions to perform. 

Condensation Control
It allows warm moist air generated in the building to pass freely through it, helping to prevent condensation in the roof. As it is waterproof the water drops created by the condensation which forms on the primary roof covering will simply roll down the Ventia VPU into the gutter.

Secondary Roof Covering
Stops any rain or snow which penetrates the roof tiles or slates getting into the building below.

Temporary waterproofing
During construction and if the primary roof covering is damaged Ventia VPU will protect the structure below.

Wind
Ventia VPU will prevent wind and any particles it may be carrying entering the roof void.

Dimensions

Length 50m Width 1500mm

Details

Permeability Vapour Permeable Roll Size 75m2

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Ventia 120 Vapour Permeable Roofing Underlay (VPU) - 50m x 1.5m Roll

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