cold bridging

New single storey side extension (wc/ utility & office) with tiled pitched roof (inc breathable membrane/felt) with rafters & ceiling joists So small void /storage area potentially all be it small, and insulation is priority Double skin (Con. blocks, cavity insulation , Fenlite Con blocks,)...

Hi everyone, hoping someone would provide some guidance if possible. In my house one of the bedrooms gets a bad damp problem from condensation, this looks to be the worst I’ve seen it. It was built in the 1950’s, there has been insulation laid in the attic, only on the ceiling level which I...

Hi, we're doing up a stone house, and have lots of vapour-related potential problems. Today's problem: we have an RSJ across a room, both ends in external stone walls, supporting the first floor joists. We're installing internal insulation (stud etc.) on all external walls, so the RSJ is a cold...

Hello, I have recently converted my garage to an office. It's been built with cavity wall and 100mm insulation. I didn't hire an architect as wanted to save money. The house was extended before we bought it and it had a 1st floor extension above the garage, this included having a steel beam...

I recently bought a 1930 semi detached property with cavity walls which had new DG windows and patio doors installed 7 years ago (10 year warranty still valid). I am having two separate but linked issues: - Severe dampness and mould along right side of patio door (attached image ). There is...

Hi Garden detached room under construction . Warm roof will be used (18mm osb then 100 celotex then 18 osb) Query : Insulation with the eves at end of joist runs, as there are noggins etc please see attached Before answering - thanks