Permo Sec 400 is designed to address the specific challenges associated with metal roofing. Condensation commonly forms on the underside of metal roof coverings, which can lead to corrosion or structural damage if not properly managed.
This membrane prevents moisture from re-entering the roof structure while allowing vapour to escape. Its structured mesh design creates a drainage path that directs moisture safely towards the eaves, supporting long-term roof performance.
It also helps to reduce noise transmission, making it particularly useful in projects where sound from rainfall on metal roofing is a concern.
Applications
Suitable for:
- Standing seam metal roofs
- Zinc, copper, aluminium and stainless steel systems
- New build and refurbishment projects
- Timber boarding or rigid insulation substrates
- Roof pitches above 3°
Why Choose Klober Permo Sec 400?
- Designed specifically for metal roofing applications
- Combines separation, drainage and vapour control in one system
- Helps extend the lifespan of metal roof coverings
- Supports compliance with modern roofing standards
- Trusted Klober product performance







