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Hi all, I was looking for advice on a small newsagents thats getting extended. We require sockets flush with the floor (freezers in middle of shop) Would 50x50 battens on the slab, with 22mm flooring on top finished with tiles be ok? I would put the insulation below the slab. Any problems...

I would have thought you'd need Planning for a new dormer, If so the external finishes would have been determined then. I'd say go for vertical tiles.

Cod 4 or 5, Google it should lead you to manufacturers recommendations, allow 150mm upstand from top of conservatory - if you are in high exposure area include cavity tray.

IS = IG mes think, just same types as Ctnic

Np. Flooring we tend to stick to Glasswool insulation packed between. Cheaper and achieves required u-values. As for strengthening, for a rough guide would need to know the sizes, spaces between, loadbearing wall positions, etc. All which your S.E should know before calcs are worked out.

kim & aggie :D :D

Hi, Kingspan insulation boards or similar - check website for between rafters. You may need to deepen existing rafters to achieve 50mm airgap. Fix 2x2 battens on the side of the existing rafters to maintain the airgap from the inulation to the existing sarking. Hope this helps

Ty vm Noseall

Hi all, Hope yous can help, I have an existing flat roof extension many years old, we are going to take the flat roof off, build on top the existing walls about 500mm to the main house eaves, and put a pitched roof on. The existing extension is 100 brick, 50 cavity, 100 timber stud. My...

Thanks noseall, Joists are 100x50's.

Hi Softus, It is an attic room with a small ceiling, I was under the impression that when the duct passes through the cold roof it needed insulated. Thanks for your reply Softus

Hi peeps, Easy one for you experts, Having an extract fan ducted through the roof space from an en-suite, My question is - whats the easiest way to insulate this?, and can you duct it to a tile vent rather than a pipe coming out the roof? Thanks for your help

Hello everyone, I've got a few questions re: garage conversions i hope you can help, 1. When the new joists are laid straight on the slab, are they screw fixed to the slab? 2. Should i lay a dpm below the joists? 3. I noticed on the drawings timbers referred to as sw and wpd, i take...