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Ive layed the DPM and PIR boards. do i really need a vapour barrier over the top of the PIR too??

thanks there is two types in Screwfix. /no-nonsense-cement-based-levelling-screed-20kg Cement base or no-nonsense-floor-levelling-compound-20kg What did you use?

sometimes i would think 2 bags enough then realize i need 2 more and by the time i get the bag, it drys a bit... i will have to bag 4 at once... do you have to use a trowel or straight edge?

Thanks. i didnt want to use screed but i will have to then seems simpler and will make it easier in the long run

Hello I cleaned up my garage floor and wanted to lay down 100mm PIR insulation, TG chipboard... It is a concrete base floor at the moment with dips. See picture attached. I have read to put KILN dried sand on the areas.... Any suggestions?

Hello I am currently converting my garage to a games room. The external wall side, i will be putting in a timber frame then sliding in PIR insulation... However, as for the floor, it is a concrete slab. I will be laying the DPM then insulation.... I am confused to which step to take...

Pitched roof. 170mm insulation.

Yes I’ve finished the build. All 9 inch solid walls all around. Only front and right side wall are external walls, being 9 inch. Double glazing. Concrete floor, 150mm pit insulation with 50mm screed.

How do I work out the u value? Or do I have to seek Architect

Hello new regs states 150mm insulation on walls which are external...... normally when it used to be 50mm pir, I would use a 50mm timbers and cut off pir insulation in between... Now it is 150mm, how do we put this on the wall? Can't exactly stick them on... Thanks

Hello, I am currently replacing my garage door. I would like a door and a window There is a part which divides the window and the door, there is a column and I’m wondering how I can make a column from 4 inch concrete block. The width of the column is the width of the concrete block, and I’m not...

hope it ends here

Hello I am currently converting my garage and replacing the garage door with a window and a the door. I have finish the foundation. I called up merchants to make an order for blocks and bricks etc…. He asked me which block, thermo lite or concrete block? I am not sure. I am going to...

Hi yes just a 1 m high wall… Btw, i have dug this out and it was a lot of hours…. Its an overkill… can’t believe you need a 1m for this small wall… I know I could have just done 500mm, but just want to keep in line with Reg’s etc… but it’s too much

Hello I am currently replacing my garage door with a door and window …. Just dug out a 1m foundation…. However, there’s an existing footing for the existing side wall… Do I have to dig out underneath it and fill with concrete?

sorry i dont understand. the wall i height i need is 1m high and 1.4m wide, it will be a solid brick wall....

Hello i am replacing my garage door with a door and a window. Under the window, there will be a brick wall. I am digging a trench. 600mm wide and 1m down... According to the below image, how deep should (c) be? I would have thought 1m foundation means from ground level to bottom.... Is this...

when filing with concrete, do I have to do it all at once … can’t it be in sections? Lot of work to mix it all

Hello i understand a 1m or so foundation is needed under a wall... but what about under the door... do i need to dig out a trench for the whole width even there is not much load under the door? see pic.

im confused.