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Fixing a sagging roof

Posted by Jen Williamson, on
I am currently in the process of buying a Victorian terrace and the survey today revealed that there is a significant sag to the roof. Our surveyor said it would probably need beams to be added to support the roof. Two questions: Would we also need the roof to be re-tiled? Would this be a roofer job or something for a builder/carpenter? Thanks
sam boswell

sam boswell

Hello, If the roof is sagging, it could be because the roof has settled lower than supporting walls, also putting support beams in a very old roof is a specialist roofing job, and you must make certain that this type of work is necessary, as you could end up doing more damage to your roof! depending on the tiles the only way to determine if you need new tiles is to remove a selection and look at the quality of the face side of them. You need a good roofer to advise you on this roof, and take what the surveyor says with a large shovel full of salt. Regards Sam
Paul  Davis

Paul Davis

Hi Jen, The works would require removal of the existing roof, and re-tiling. Kind regards Paul Davis Total roofing care.

Andrew John Wheaton

Hi Jen, Sam is absolutely right about the partition walls and doing more damage. Get the roof checked out by a reputable roofer and if it needs a new roof get the sagging done at the same time otherwise leave it alone. A good carpenter could install 'purlins' while the roof is off, easier from the outside. Also you could change the tiles for lighter slates if your house is detached.
Edward Thompson

Edward Thompson

Hi Jen if the roof is sagging significantly it maybe necessary to strip the roof of its tiles to take the weight off the timber rafters. This will help the new beam to push the rafters back up and remove some of the sag. You need to ask yourself what condition the roof is in, is there felt under the tiles? Might be best to get it all done together. Post you job on Rated People under roofer or builder/carpenter. Thanks Ed.

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