Nestor

Sorry for confusion. I used Exeter CCF. In the end they could only supply 2440x1220 at £8.40 a sheet. I have 600 centres so had to trim sheets to fit. 2400x1200 seemed very difficult to obtain and at a premium. You could try https://www.southern-timber.co.uk/ They have been very helpful.

OSB3 11mm 2400mm x 1200mm . £8.40 + vat a sheet. this was end of January. Includes delivery. https://www.ccfltd.co.uk/

No, I would always use a roof ladder for access. Less contact with the surface the better.

@Temp @ProDave Thanks for your replies. I have spoken to my BC and has said cavity is not necessary as its a warm roof. I would like a cavity so 25mm is fine, no counter battens needed. Tata want a solid deck of OSB, provide you with 40mm nails which go straight through the OSB and puncture breather membrane which does not work for me.

Kastrup and Internorm windows and doors now fitted. Took about 12 weeks from initial deposit. Fitting and manufacture issues still not resolved 4 weeks later. Balance of payment outstanding until all issues sorted.

Ok, I have a warm roof, Pavatherm above the rafters. About to fit Tata Steel metal roof but not on OSB sheet but batten fixed vertically at intervals to support the pan. Do I have to have a 50mm ventilation cavity as its on batten not OSB which would not need a cavity for a warm roof. Is it necessary? Thanks all,

I applaud your effort looking at alternative options, FYI I purchased BPC MVHR for 2.6K + vat. Includes 6 extract and 7 supply. 285 sqm building. Self installation. I have spent £400 on airtight tape!!

Just want to add what a great job you have achieved doing the insulated foundations yourself with some ground workers. All for DIY.

Only mentioned because I bought 70 sheets in December as the price went up 30% in 6 months.....

Just checking the amount of celotex, they quoted for 101 sqm yet your ground floor is 145 sqm.

4 days! A year later and I have nearly finished the airtight OSB layer, next electrics and plumbing.

We did revise the drawing I sent you, the 150mm Celotex butts up against the DPM / blockwork. Does that make sense?

This is our floor, wall and roof build up. Hand drawn. Airtight layer (VCL) inside. DPM over blockwork under DPC. I did put sealant in the bolt holes. Floor, Wall, Roof Build up Jan 2018..pdf

I just bolted the soleplate to the blockwork through the dpc, then frame on top. No mortar.

I thought of a Telehandler, 3CX or similar for off loading and other tasks but on my build I have used a Telehandler once for roof materials , local farmer. Arctic came with a Moffat to deliver insulation, all timber deliveries have been off loaded with Hi-ab. Steels went up with a Genie lift and Glulam ridge lifted in place with digger and home made jib attached to the bucket. So far the cost has been under £250.00. I still want one though........

Went with private company as it was the same price as local authority, the BCO has been totally onboard.

Best time to prune cherry is June / July and treat pruned branches with Arbrex or similar.

Just ordered another 20 rolls and the discount code still works. 15%aocx

Can you share your knowledge about solar thermal or a PV diverter ( Eddi ). I cannot see the benefit of having both, the PV diverter seems much more effective with an immersion in the buffer tank or UVC. Thank you.

DTS 141 is about 130mm.

Final payment not made. So far they have recognised all the issues and will keep you informed of progress. Might take a while.

I did pay £8k on a credit card as a deposit.

Hi Dave, the installers are from the suppliers. Have a meeting tomorrow at midday with them to go through issues. Will keep you updated. The glazing with the roller marks concern me most. @ProDave

Glad to hear you are watertight. Who paid for magicman, the installers?

90% has been paid. Terms and conditions stipulated payments before fitting. Yes, Heat stress / roller mark. Not sure why it would leave the factory like this, its so obvious. Thanks for Magicman.