Fix roof ridge tile to fill gaps

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Hello,

I noticed some pretty large gaps in our roof in one of the roof tiles, which was recently repaired a couple of years ago. Please see photo.

I was considering getting a roofer out to fix it but then I'm thinking it might be possible for me to do this myself as the tiles look fine, it's just the gaps.

Any tips on how to go about fixing this and which products are recommended to use would be much appreciated??

Thanks
 

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ridge needs lifting off and re bedding then pointing. or you might be able to dry fix... my choice would be bed
 
Thanks for the quick response.

The issue I have with this is that I had 2 separate roofers out just under 5 years ago to lift off, rebed and repoint.

The first guy (Facebook recommendation costing £250) was a total cowboy and the very next day it was leaking in loads of water.

I then got another guy from Mybuilder.com who seemed to do a decent job (cost £300),but this is me job noticing this issue. It might have been like this for a while.

Either I'm really unlucky with the roofers I find or this job is in some way more tricky if I can't find a long lasting fix.

Any specific pointers or recommendations on how to try to fix this long term would be much appreciated?

How long would you expect a fix to last?

I think the issue might be because there used to be a gas flue existing the roof at this point and this was essentially covered over.

I wonder if I need something more extensive underneath to support the ridge in this area?

Many thanks
 
That has been buttered up in the past by one/either of said roofers.
If you're attempting to do yourself I'd suggest dentil slips to avoid slump. I'm assuming it's your first ridge line apologies if it isn't but they will ensure your mortar does not drop (within reason)
Easy job if you're handy with a trowel and use your loaf mate.
 
I'm pretty handy at DIY but not that familiar with roofing work. Never used a trowel and had to Google dentil slips, but I'm willing to give it a try especially given the issues I've had finding reliable roofers so far.

Re: dentil slips. I've attached a slightly clearer new photo which shows that the left hand side is slightly slumped, but the right hand side looks perfectly aligned. If I try to use dentil slips will this not potentially make the right hand side to high?

What's the best mortar to use for this and is there any other tips to try to do this well, bearing in mind I'm am a roofing novice?

Is it fair to say that these types of jobs are also too small fry for decent roofers, which is why I'm probably finding less reliable roofers?

Thanks
 

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I'm thinking that my best and most cost effective option over the longer term is possibly just to convert the whole ridge (8.5m horizontal length) to a dry fix system.

Is it usually easy enough to convert an old mortar ridge to a dry fix system?

Also any recommendations about the best system to use and expected cost to Instal??

I'd rather pay a bit more to get the best system installed to hopefully not need to get anything fixed on the ridge again for many years.

Thanks
 
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