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Hi Guys, I am about to put in my insulation between the rafters after my electrics first fix, The question being do I put the insulation in so they are flush to the bottom of the rafters or can I put them above my wiring as long as I leave my 50mm air ventilation gap? There will be 50mm pir...

Hi Guys, As the title suggests...are these screws ok to use? I know they are designed for floor chipboard/osb but was think they would do the same job on the flat roof construction? https://www.screwfix.com/p/spax-wirox-tx-countersunk-wirox-flooring-screw-4-5-x-60mm-300-pack/88716 Thanks.

Hi, I will be framing my flat roof using 9 x 3 timbers.... what size/type of nails do i use to brin git all together (noggings/overlaps/framing etc) ? Thanks.

Hi Guys, I will be attempting to frame my own 100sqm flat roof my self! Will be using 9x3 timber all round.... what type of nails and sizes do you suggest fo this size timber? I will also be creating a trimmer for part of the roof...what is the best way to bond the 2 timbers....nails or bolts...

Hi Guys, Looking at the attached plan... with the joists running left to right.... which joist size would be suitable: 1) 8x2 2) 8x3 3) 9x3 The internal walls are solid block and load bearing

Hi guys, Would anyone be able to suggest the best way to frame this flat roof (cold roof because of height restrictions)? Will be using C24 9” x 3" and all the internal walls are solid block load bearing. I was thinking about creating a 2 way fall to each side with firring strips. OSB and then...

Hi, As the title suggest whats better? I know PIR is way more expensive than XPS but dont really know any other pros/cons?

Hi Guys, Do i need to wacker plate my soil prior to putting down the hardcore for my sub base (for outbuilding)? Im going for 150mm hardcore depth.... So how much do i need to put down so the final compacted depth is 150? Thanks

Hi Guys, Any issues with placing 50mm xps insulation slabs externally in the trench below dpc/ground level before backfill? To help with insulating the building? Please see pics.

Hi Guys, I will be filling my cavity as per title over the weekend prior to backfilling and compacting the ground. I know i need to use 8 part balast to 1 part cement gfor the mix...but i have read conflicting messages about the consistency of the mix....should it be wet or dry? Also i have...

Hi Guys, going to be building up to DPC for my project this week. There will be 2 bridges for water and electric supplies to run under the blocks... what size/rating lintel will i need (assumng i need 4 lintels also)? Thanks

Hi Guys, Im just running my utilites to my new outbuilding (still waiting to be built up to DPC). I had to run utiities first due to access etc. Is it ok if i run the swa beneath the dpc with a lintel and up through the concrete floor once its poured etc? DO i use a hockey stick to bend it in...

Hi All, Ive been advised by my builder to use concrete blocks fro my outer skin of my outbuilding and internal skin/partition walls with ashblocks/ashlite.... i cant find much information on these on the net...has anybody else come across these (or if there is a different term for them)? Ive...

hi Guys, I'm building an outbuilding for recreational purposes which includes a separate shed/garage.... I'm thinking of installing the new boiler in here as its easier to get the gas supply pipe here. I want to be able to control the central heating from inside the main outbuilding... like...

Hi, I self dug my trench for my outbuilding..... the garden is on a slope and the trench has been dug in line with this. So the concrete level on the lowest part is come out quite a bit...like approx 1m (60cm at the highest point)....its actually coming just above ground level. What options...

Hi Guys, So i have my trenches dug amd in certain areas due to limited space for the digger the trench is dug a bit wider (80-90cm) - i have some old fence panels lying around.... Will these work to shutter the trench?

Hi all, Im about to endevour on a new journey to project build my outbuilding at the bottom of the garden. I have been reading this forum for a few months now researching etc. The site is nearly cleared and i am ready to mark up for the digger. There are some Sycamore trees dotted around so i...