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Hi Quick one. Want to insulate upstairs ceilings below loft space as joists only 100mm. Ceilings may have asbestos plaster so would like to cover in c.20mm PIR (foamed or bonded in place, or some screws if not flat enough) then overboard with new pink plasterboard using c.70mm drywall screws...

Hi, So my builder left the slab exposed for 3-4 months after laying it (badly) on a vastly over running build. So now that roof is on its floor insulation time. Weve had heaters and 3 dehumidifiers running 12 hours a day and overnight sometimes. We scrub slab to remove dark mud, clay etc then a...

Hi Hopefully an easy one - hard to find info online. I am making upstands myself for a new roof extension with skylights. 2 x 1.2x1.7M skylights. This is my amateur 3D model of the upstand.. shows indication of VCL in yellow lapped up the side above the top deck/insulation/EPDM and have...

Input appreciated here from someone of a Stress analysis/welding background. My extension and knock through is becoming a comedy of errors during construction... never mind the unjustified extra charges! S.E. specified this: What the Steel Fabricator/Installer actually turned-up with and...

Hi, Can't seem to get a sensible answer on this. SE has specified a steel for over bifolds...see below. Question is how to minimise cold bridge? Can I/should I just pack with some say knauf 32 or 35 slab...for example? It's about 3.15M Long

Hi, A confusing one. For our knock-thru and main steel at rear of house, our SE has specified insitu padstone as follows through onto the new extension wall (steel actually only 100mm dimension now, not 250mm): The builder has produced this with a day to go before steel installed! we...

Hi, New here! Not an expert so looking for pointer(s). I have the layout as shown and unsure how to best set blocks for minimum cuts etc... but dont want to go moving walls, windows and piers and changing window sizes more than a few cm as theres reasons.. I have attempted, but unclear about...