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Advice Needed on Integral Garage Conversion

Postby pcdeeuk » Fri Jan 24, 2020 4:49 pm

Hello all

My house was built in 2001 and has an integral single garage, I will have the window and brickwork done.

I plan on doing the inside.

Walls are cavity (block and brick)
Ceiling is fireproof as there is a room above the garage.
Access door from utility room is a fireproof door.
Garage already has lights and power sockets.
Garage floor is lower than the rest of the house (80mm from utility room DPM)

1. Can I use insulated plasterboard for the walls using dot and dab?

2. I have no issues moving the sockets from their current position to a new one. Would I need a electrical certificate?

3. Garage floor, now this I'm not to sure on how much insulation it needs. My plan was a floating floor, DPM followed by 50mm Cellotex then 18mm tongue and grove glued.

I know I will have to inform building regs, does anyone know the costs involved for building regs?

Thanks!
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Postby B4Less » Thu Dec 10, 2020 10:24 am

Insulated plasterboard can be dot and dabbed to masonry walls. I would recommend a PIR insulated plasterboard like Celotex PL4000 or equivalent, there are numerous equivalents on the market. 50mm Celotex for the floor will provide a very good thermal performance here, DPM (1200 gauge), insulation, DPM (500 gauge), and then the finished flooring is best practice.
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