Help identifying issues in loft.

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28 Mar 2026
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Hi all.

Having renovation works done and the builder has boarded out the loft for us.

Apart from removing structural elements that he insists are fine but the engineer says no, he's redone the roof and redistributed the old insulation around the loft and just plonked it on top of the really old granulated insulation. He hasnt gone round the whole loft just where he fancies by the looks and when I went up to inspect there's quite a lot of light shining through behind the chimney stack.

Plus I pulled him up on a shoddy velux I stalled which he has now fixed but I'm still not convinced.

I would really appreciate some help with this as we're up to the final payment and I just don't think this is up to snuff but I might just be being anal.

Thank you.
 

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Not clear what your concern is, you only mention him doing insulation but none of the photos show this?
What is meant by redone the roof?
 
All depends on what you contracted him to do but the insulation is very poor and you will not feel the benefit of what he has done in that area. The daylight behind the chimney seems excessive and I would want that looking at and the Velux.... it should have double trimmers either side and he has just stolen the existing rafter and used it to fix the Velux to which has left a noticably widen gap between rafters and the side timbers actually look like they stand proud of the horizontal timber. In short you have reason to have a word but it all depends on what he has quoted you for as to whether he has fulfilled his role.
 
Apart from removing structural elements that he insists are fine but the engineer says no, he's redone the roof and redistributed the old insulation around the loft and just plonked it on top of the really old granulated insulation. He hasnt gone round the whole loft just where he fancies by the looks and when I went up to inspect there's quite a lot of light shining through behind the chimney stack.

Daylight and what appears to be a water leak, onto the timber in photos 3 & 4.

He's taken out a complete rafter, which he should not have done, and for no obvious reason.

The Velux rafters, should have had the rafters sistered at either side.

Insulation - what insulation?
 

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