GRP Valley Question

11 Apr 2007
Reaction score
United Kingdom

Has anyone got a picture or diagram of how a grp valley falling into an internal 90 degree gutter corner should look when completed correctly.

I am getting a leak into my soffit which I am told may be that the valley does not extend far enough into the gutter.

Also should the valley be cut square at the end which extends into the gutter.

Thanks in advance for any advice.

Sponsored Links
on alot of the valleys we do with grp we keep the grp valley up the roof about a foot and fit a piece of lead under grp valley and into gutter
Thanks for your reply, this is what I had actually done but there seems to be a leak into the soffit, I noticed today after a particularly heavy downpour that the water was shooting down the valley and jumping over the gutter, not sure whether this was just sheer volume of water, think I will have to strip it back and see if there is an obvious issue?!

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