lngn2

As I recall the builders felt the roof needed some extra restraints, so they're semi-structural. Think I'm going to see if Building Control will come and take a look before we seal anything up..!

Apologies! Ceiling level in a hipped roof. I've highlighted the area in the below.

I've just spotted that our builders seem to have taken an angle grinder to joist hangers in the roof rather than use ones with a cup of the correct depth The cuts they've made will substantially weaken the hanger I think?! Is this an issue we need to get them back for.?

Prior to Christmas we had a new slab poured. At the time, we asked the builder how long to leave it prior to insulating and were told a couple of days was fine. Subsequently I've discovered that concrete dries at 1mm/day, so the insulation will presumably be trapping moisture in the slab. Today, much to my dismay I've discovered that the PIR upstands around the edges of the floor are damp and there's visible moisture on the DPM. Diagram & pic below shows. Several questions, both relating to this, and more generally. Any help very, very gratefully received. 1. Is the issue of trapped moisture going to cause us a problem long-term (if so, what to do)? Will the slab dry with water loss around the edge as we appear to be seeing? Would a dehumidifier help? 2. Should the floor VCL be attached to the wall? Otherwise presumably damp air could get behind the insulation and condense on the cold side? I cannot find anything definitive on this. 3. If yes to point 2, then I guess works stops (inc plastering) until the slab is dry? Many thanks...