Leaking pitched roof around velux

Joined
5 Feb 2021
Messages
5
Reaction score
0
Country
United Kingdom
I am seeking advice on replacing the leaking roof on 4 year old extension which has been an issue for some time. The roof is pitched at approximately 15°. There are 3 Velux windows which are pitched just below 15°, the app used showed between 14.3°-14.7°.

The plain Redland tiles currently on the roof are suitable only for a 35° pitch and we intend to replace them with Redland Regent interlocking tiles which are approved for 12.5° pitch. In the process new battens and a quality breathable felt underlay (e.g. Permo Forte BBA approved), new flashings by the main wall at top of the roof and dry verge caps will be used.
A few roofers advised that new tiles and the above mentioned adaptations should resolve the issue. However, it has also been suggested by one of the professionals that the pitch on the roof and veluxes should be raised as the veluxes are fitted slightly below the manufacturers recommended minimum of 15°. We would rather not have the veluxes removed to raise the pitch in case of any damages that this may cause inside the extension ceiling. There may also be additional costs for replacement of flashing surround kits.
The dilemma we are faced with is whether to replace just the tiles which hopefully should stop any future water ingress or should we also have the roof/veluxes pitch raised for our piece of mind.
The Velux area with the leak is close to the outside edge of the roof and seems to be more effected by rain especially when the wind is blowing into the direction of the roof. There are no leaks around the other two veluxes which makes me think that the problem is more to do with rain water seeping under the tiles rather than the veluxes pitch being slightly under 15 degrees. Can a half degree below recommended 15 degree velux pitch be crucial or can we get away with re-tailing the roof without raising veluxes / roof pitch ? Can anybody advise on the matter?
 

Attachments

  • D4B64007-7671-4C00-9F04-292B06469949.jpeg
    D4B64007-7671-4C00-9F04-292B06469949.jpeg
    143.9 KB · Views: 325
  • 645EF43A-E3E4-493A-9888-BA6D34762C79.jpeg
    645EF43A-E3E4-493A-9888-BA6D34762C79.jpeg
    495.2 KB · Views: 314
  • C5FDC48A-D531-4FFA-88FD-469DC2838AA7.jpeg
    C5FDC48A-D531-4FFA-88FD-469DC2838AA7.jpeg
    193.9 KB · Views: 307
  • 17BD59B4-633D-4510-8811-0C1717BFE64D.jpeg
    17BD59B4-633D-4510-8811-0C1717BFE64D.jpeg
    284 KB · Views: 296
  • 4E3341DC-8173-4D78-B99C-41670D7A5F2F.jpeg
    4E3341DC-8173-4D78-B99C-41670D7A5F2F.jpeg
    162.5 KB · Views: 294
  • B5DBE980-A8E9-41AC-A3E7-1CAAAD605056.jpeg
    B5DBE980-A8E9-41AC-A3E7-1CAAAD605056.jpeg
    314.5 KB · Views: 319
Sponsored Links
Id be surprised if half a degree makes that much of a difference, but I'm not a pro.

There is Others on here which know better than me and have experience of these
 
Seen this before.. change tiles and the lead flashing .
The pitch is ok . Tiles and lead flashing not
 
Sponsored Links
How have you ended up with plain tiles on that roof?
Were they going cheap on e.bay?
 

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

 
Back
Top