Allex Posted February 6 Share Posted February 6 I understand these follow the line of the rafters and are nailed on top of the underfelt to allow any rain run-off getting under the tiles. Are they really necessary if I allow a bit of slack in the underfelt under the tile battens? Thanks. PS I've got to fit a Velux window and am also wondering if counter battens are necessary for one of these. Link to comment Share on other sites More sharing options...
Crofter Posted February 6 Share Posted February 6 You need counter battens if you have sarking, but a tented membrane draped across the rafters doesn't. 1 Link to comment Share on other sites More sharing options...
cwr Posted February 6 Share Posted February 6 Velux windows are designed to work with or without counter battens. 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now