features
- Easy to install
- Fitted above opening in roof felt
- Guides moisture away from roof void
ideal for
- Roof ventilation projects
guidance
Full installation details are available on request from the Technical Department.
FW1 Felt Weir Installation Instructions
1. Cut a slit in the felt, approximately 50mm above the batten
2. Slide the weir under the batten directly above the opening in the roofing membrane, inserting top of weir into slit above the batten
3. Nail the weir to the batten
4. Nail membrane over the batten in the normal way
accessories