Velux window leak issues..

House_Hunter

Hi all,

Was up in the loft last night and noticed a small patch of damp on the boarding...a quick investigation lead to me noticing the timber frame above the velux window feeling quite damp/cold to touch.

So I suspecting the velux (or frame/moutning) is leaking a bit.

What are the usual suspects with regards to leaks in and around velux windows? What should I look for?

Any help much appreciated!!

The_Wall

House_Hunter when my loft window, they are COLT Roco windows but these are similar to Velux, was leaking, which we found out when the water was coming through the light fitting in the bathroom, I noticed water running down the rafter around the bottom of the window.

I found the leak by lifting the roof tiles around where the water was coming in. Managed to do a temporary fix, which is still there:eek: which I'll sort out at a later date.

If your leak is at the top of the window, are you able to get access to the roof tiles, without having to go out onto the roof?

If you can try lifting the ones near where you think it is leaking, be careful in case the tiles have been fixed in place with a nail, and see if you can see anything.

The problem with water is that where you see, or in your case feel, the damp is not necessarily where the water is getting in.

Tucker

Have you ruled out condensation as the cause?

Velux windows can be more prone to condensation and it could be dripping as a result?

House_Hunter

Don't think its condensation - as it was the timber struct/frame/joist above the window that felt damp - as opposed to below where I would have thought condensation could build up and drip down to...

27col

My neighbour has just had two Velux windows replaced, and they were done entirely from inside the house. So it would appear that it is not necessary to get out on the roof. In view of this is it not possible to have a thorough inspection of the flashing adjacent to the window and thereby establish the cause of the leak and then to affect at least a temporary repair.

chrisg1985

House_Hunter wrote: »

Don't think its condensation - as it was the timber struct/frame/joist above the window that felt damp - as opposed to below where I would have thought condensation could build up and drip down to...

off topic - how did you get on with draught proofing your front door? cheers

chrisg1985

House_Hunter wrote: »

Don't think its condensation - as it was the timber struct/frame/joist above the window that felt damp - as opposed to below where I would have thought condensation could build up and drip down to...

Could be loads of reasons your velux is leaking but it will most likely be a case of some silicone for a quick long term fix.cheers

elsien

Ours turned out to be bits of stone that had washed down the roof and got wedged in somewhere - once they were cleared it was fine.