Oz07

(recycled concrete)

does the job for me what's wrong with it

Recycled crush concrete 10mm clean £10 per tonne collected loose

A line of clear silicone can form a temp drip just to test

Only anecdotal. I had 30 lengths delivered and sent the lot back. Was a couple of quid cheaper than my usual merchants but half the weight per length. They said it complied with BS but I sent back. Next lot from buildbase arrived and were bananas. Straight back in the lorry. Third time lucky from EH Smith.

I would think blown beads is am option drilled from outside. Look into it

I'd imagine you will be susceptible to the low stock levels due to the scamdemic hence no desire for merchant to budge. Be careful with drainage there is some poor stuff about which still complies with British standards

Oh sorry just looked at my cheat sheet. Your hip will be on a 22 deg angle as it's over a longer distance. Your jack rafters at 600 c/c will reduce by 693mm in length each time

Doesn't sound right to me are you sure its not just a dodgy cut the manufacturer has put on the ends? I've sent monos back before as have been supplied an inch out of square in the distance of a framing square. To be fair i had the remade ones on the driveway at 8am the next day - can't complain about that service

What is the cost difference between 150 and 100. I've been using 150 since 2015 it's not been too taxing on costs. Trench blocks seem to be the worst part of it, lintels, ties and insulation didn't appear to break the bank by upping to 150mm

3 seems easiest

Does pipe material impact condensation risk? Copper versus plaggy?

I would hate to be building now. 2 doors short on a plot last week apparently 6-8 week lead time for the builders.

All the money @nod has and he still takes photos on a Nokia 3310

Basically someone is taking an anal view of the regs here. If you can reduce the width by 50 odd mil to push the bottom newel back into the high ceiling zone and it passes then it should be fine the full width. Nobody is walking on the very inside of a kite winder any way. As said above chat with your bco. Explain you'd prefer a full width staircase as more comfortable but are happy to reduce width to comply if that's what they require. Put ball in their court.

How is 1.2 no more than 2? On 12m of wall you would use 13 as opposed to 7 at 2m

1.2 centres I thought it was usually no more than 2m. Usually you come down 4 blocks or so. 900/1200 straps

So kite winder at bottom 4,3,2 tread and is it just tread one which is protruding into the 2440 ceiling? I think you're okay

Due to space? These aren't usually any shorter unless you're putting the cistern into a void which is already there

Kite winder?

I've never paid any more than 3 figures for my certs. I do have a good architect though. The bill is normally split into thirds. Planning, build regs, sign off.

Major benefit which you are forgetting @SuperJohnG is elimination of joints within the structure of the building. Ever piece of pipe is a full run with only joints at either end. Also whatever the technical term is but I can flush loo and it doesn't affect shower when running.

Cml cert make sure architect is riba and with ARB

I meant op. Just so they're on the ball that there can be extras

Doesn't sound bad. What about extras insulation, trays, lintels etc? Last lot I used even charge a quid a metre to roll out dpc! I offered to do it but can't pick and choose so just stuck to making tea!