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Roofing Superstore Vapour Permeable Underlay (50m x 1m)

Roofing Superstore Vapour Permeable Underlay  (50m x 1m)

MATERIAL

•  Harcon 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.

 PRODUCT DETAILS

Thickness

• 0.5mm

Weight

• 0.125kg/m2

Width

• 1000mm 

Length

• 50m

Roll Weight

• 6.25kg

 Colour

• Bright Blue 

PURPOSE 

• A vapour permeable membrane has 4 functions to perform. 

1 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 Harcon VPU into the   gutter.

 2 Secondary Roof Covering

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

 3 Temporary waterproofing

•    During construction and if the primary roof covering is damaged Harcon VPU will protect the structure below.

 4 Wind

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

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