Klober Permo Forte Vapour Permeable Roofing Felt Underlay – 50m X 1.5m

Suitable for all pitched roofs, this roofing membrane is an effective solution for controlling condensation and has the best resistance in the marketplace. It can be used for cold or warm roofs making this product adaptable.

Features & Benefits

• Very strong and robust vapour permeable underlay.
• 4 layer material with grid.
• BBA, IAB & CE approved for cold & warm roofs.
• UV stable for 4 months.
• Double hydrophobically treated.
• Allows the roof structure to breathe, yet fully waterproof.
• Counterbattens only required on fully supported applications.
• Limits air leakage in a sealed roof application.
• Type LR underlay.

 Performance  

• Tensile Strength: BS2782-3.32OA.
• Longitudinal (N/5cm): 430.
• Transverse (N/5cm): 370.
• Nail Tear Strength: MOAT 27:5,4,1.
• Longitudinal (N): 364.
• Transverse (N): 392.