Advice on leaking roof Information, help and tips on many areas of roofing including trusses, tiling, venting, insulation etc....

[RichRoberts44]

Hi,

Looking for some help. A week or so ago when it was snowing and we had high winds, the inside of my kitchen showed a leak. I had a previous issue before the velux window (also only present in hard rain with high wind).

I've had 5 reputuable roofers come around to quote and each 1 has said rather than try and find the issue its better to just replace the whole roof. My issue is that the felt, lathes etc are under 4 years old so I'd be surpised if they failed. I have noted that the tiles are for 35 deg pitch roof and mine is closer to 20. They also look far older so I believe the builder who used to own the house used them of another job he had instead of buying new.

My questions are,
Is there anything I can check to see if I can repair rather than take out perfectly good flashing, unerdlay, velux flashing etc?
Is it possible to replace just the tiles if the lathe spacing is the same or is it easier to just replace everything?

Its only a small roof at low level and I will likely do it myself, I've been looking at Marley modern tiles and will fit all the appropiates felt support trays, lead soakers etc but ideally hoping to fix until summer.

In the pictures you will also see a seperate issue, is this as a result of the render failing and blowing out? Flat was re-done with felt 4 years ago and still under warranty.

Images;
https://photos.app.goo.gl/3MkFWUeinnCr93dM6

[stoneyboy]

Hi richroberts44,
Unfortunately the link to your photo does not work, it’s better to embed it in your post - go to the welcome page and on the right in the text there is a link on using the forum and how to embed images.
Since you have fairly recently had the roof felt redone it is unlikely water will be getting through the main felted areas. I would suspect the detail on the top edge of the velux window - this needs special treatment to direct any water round the edges of the velux.
The overlap specified by tile manufacturers is normally linked to how exposed the roof is - if the roof gets driving rain then it is possible the rainwater may get under the tiles but if the underfelt is sound this should direct water to the lower edge.
You could strip the tiles off the roof and fit extra battens at the required centres without removing the existing ones this will mean an extra row of tiles at the top.
Regards S

[Mr White]

@stoneyboy Have you checked your browser settings? I can clearly see richroberts44's pictures

[stoneyboy]

Thanks MRW for the advice, I don’t understand what has changed but I have not made any changes my end and yet I can now open the images.
Richroberts44, having looked at the pictures the tiling on your roof is awful but even if this is allowing rain ingress the underslaters felt should still direct any penetration down into the gutter.
I suspect you are going to have to do a re-roof and patch the underslaters felt in the process. To save redoing the battens you could look for plain tiles that are longer than the old imperial ones which are currently on the roof.
Regards S

[sweetbonanzab]

Thank you both for your advice and for taking the time to review the pictures. I appreciate the detailed explanations regarding the Velux window edges and the function of the underfelt. It makes sense that even with the tiling issues, the felt should be directing water down to the gutter.

I’ll look into patching the underslaters felt and consider your suggestion about using longer plain tiles to avoid redoing the battens. Hopefully, this approach will prevent a full re-roof while still resolving the leaks effectively.