How low can you go?

4 Jun 2004
Reaction score
United Kingdom
My extension plans has a roof pitch of 13 degrees. I'm also planning to have 2 Velux windows in the roof.

I believe that he lowest pitched roof tile is a Lafarge Redland Regent which is suitable down to a pitch of 12.5 degrees.

But what about the Velux Windows. Can they be raised to 15 degrees? Is there a real issue at 13 degrees? Should I use flat roof Velux windows?
Sponsored Links
Most Velux windows I've fitted are normally for 20 degree plus.

The only one I know of are the FRS ( flat roof system) starting from flat up to 15 degree and you could make a small box section and finish off with a wider lead flashing.

I have fitted a normal Velux window on 12.5 degree but knew there wouldn't be much rain where it's sited, give velux a ring for more info.

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links