Description
Permo® forte is an extremely strong 4-layer vapour permeable underlay with a built-in safety grid.
It is suitable for all pitched roofs. Allows the roof structure to breathe, weather tight.
Permo® forte SK2 has a double integral tape – creating a strong and durable airtight seal to reduce energy loss. This avoids the use of a separate tape, making installation faster.
Guidance
- Suitable for cold and warm roofs
- Counter battens only required on fully supported applications
UK Wind Zone Guide
- Permo forte zone 1-4 at maximum overlap batten gauge
- Permo forte SK² all zones
