Dave Jones

50k

you are over thinking this. its not a block of flats with 250 people working on, its a single house. No one is going to turn up every day just to do some imaginary H and S. Forget about that and concentrate on the work getting done to plan, price and quality.

if you want a level threshold, which you probably do. to thermal break it marmox directly under the cil same level as screed. Dont fill behind it with foam or any other non load bearing material as this is your finished floor surface. You are extending your internal floor to the outside skin and at same time breaking the thermal bridge with the PIR under the screed and the marmox block at screed level.

just keep reporting missed bin collections.

dont believe everything chart gpt says. ask it how many R's are in strawberry.

leverage! temp screw a long piece to it and pull, paslode some 90's in when its in right place. had to make a a similar device when doing our studwork as soo much of it was twisted right out the pack.

Inside skin becomes the outside skin for doors maybe you are not understanding this

they are structural. will be below ground on outside door with level threshold windows are different as they are built into the cavity.

Hangers are more money, more work, prone to moving and noise. built in are not, £20 of dpc and they airtight as well.

its for an outside door albeit they havent stepped it out. inner skin is basically the same. aircretes are nowhere near U value of a marmox. your calculating losses through not up as well remeber. otherwise there would be zero market for marmox.

as long as a 100mm sphere cannot pass through any gap your ok. will look a bit cack though ?

wait till you start pricing up thermally broken lintels! What's your SAP specify as that is what your having to comply with. Dont forget if your on new regs, every thermal bridge junction has to be photographed for the EPC, no photo - no EPC.

you need to get at the back of them, add wedges and loads of foaming glue. nothing you can do from the outside apart from make it worse!

i did mention its smaller!

not really they come already hung in the frame. just double check you have chosen the correct style of cill to suit and your measurements are 5mm short all way round to allow fitting.

as with any 'service' ran by civil servants absolutely crap. ours took 14 months, the council dont take into account the 3 month queue for validation to even start. privatise the lot.

to eliminate the thermal bridge you really want a marmox block at screed/DPC level all the way round 1 high, no advantage going more than 1 block. where you have openings take them to the outside skin so your door frames sit on them. It's once of the largest thermal bridge junctions in the entire build, not worth bodging. concrete blocks are rubbish for insulation.

Cant see how the roofer could be to blame really, if they have nailed battens to the trusses then they have done the correct thing surely ? We used the bog standard tyvec that the merchants stock and it was bone dry, used 2 full boxes of paslode nails on it as rosemarys need 100mm battens..

cant see any of that under the permitted development rules. maybe yours is a niche individual specifc site ? https://www.planningportal.co.uk/permission/common-projects/heat-pumps/planning-permission-air-source-heat-pump

it was making hot water. prove different. utter nonsense.

it would be you wouldnt want to be any less than 305mm pozis if you want to get soil pipes through them.

its silent for all intents, your neighbours are not going to have a clue what its doing.

dont have a pic of the corner but all you do is run the damp across into the cavity so its sandwiched when the corner block is laid. The brickie will know. oh and if you do bring it down 100mm top and bottom 600 wide damp isnt enough you need 900.

we used the 'tony tray'. in reality the DPC doesn't rip, timber isnt sharp. Very easy to do, little more work for brickie but guarantees a seal. i brought ours down 100mm and stuck the 'flap' to the blockwork as belt and braces.

could have been a 1 off payment to the original owner though. Allways worth checking when doing legals.