Russell griffiths

If you have a leak that needle will drop like a stone, it will literally flop straight around to zero. To give yourself a reality check, crack a valve open the tiniest bit, you will see an instant drop.

Don’t be bloody ridiculous

Remember to drop the pressure when the screed is in, the heat from the curing process increases the pressure. Mine hit 12 bar before I spotted it. ??‍♂️?

Why not change the outside cladding to non combustible.

1500x 1000 is a small window in my book, when they get to 3000x 1600 then they get a bit heavy, window fitting must be the most overcharged job going.

I had a design like yours so I spaced flow and return at 150 like the rest of the house so if you shorten the pink purple loop and space them evenly across that area. Lose all runs in hall and just cover with flow return.

Yep brilliant I have 4 of them.

As above, fat bloke knows what he’s talking about.

No idea, it was just suggested to me to have a bore hole instead of 800m of pipe.

Bore hole, takes up 150mm square.

Is that all you’ve got, I’m disappointed with the poor come back. ?

@willbish did his pipes in the slab, he set up a system with scaffolding boards laid on the finished slab to take the screws for the props. He has probably got some pics if you if you ask him nicely.

Don’t bother shaping the wings, form your roll on the ground and lift it up, the weight of the lead will lay itself onto the slate, then finish forming and trim wings when all in place, trying to make it tooooo accurate on the ground won’t work. Rough form then fit and tidy in place.

If it cracks then the bit of screed on top of the steel will just float and rattle about. I would mesh it and fix the mesh to the steel with tex screws and washers. Leaving a gap for screed to go under the mesh, so pack it up off the steel.

@Nickfromwales grafting. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Looking at that stud they supply you could adapt that to have a threaded end that screws into a captive nut in the steel web. Cut out the screed in the post location, drill through steel, insert stud and tighten in web of steel. Or if your a bit clever install the stud in the steel now and screed around them.

Are you going to bridge the gap between steel and concrete with some form of mesh, I have used chicken wire in the past or a fine stainless mesh embedded in the screed.

So when your floor flexes what happens to the screed on top.?? its not a method I would want, has your architect done this before?

You don’t normally list anything under 75mm in diameter.

Just use the steel it’s such an easy thing to do. Bolt the timber in while on the ground and just lift it up and build it in.

Thought that block paving would not stand up too well, the pressure the front wheels on those trucks exert is something to be seen.

Just had 10 tonne of type 1 for £190. It looks like the washed gravel I was having was £26 a tonne. Should have checked I’ve been chucking the good gravel around jus5 to stop a bit of mud.

Pipe is cheap, 100m max preferred, I have a couple at 108m adding 1-2 ports on the manifold will only increase the cost by £20-£30 add in a couple more actuators another £30. Your fighting with the correct design to save £ 150. Get wunda to do you a proper design it costs £50 if you buy there pipe.

Is that driveway coming out after your build, the first 18 wheel truck you take up that will turn that block paving into an obstacle course. Why not get your finished drive marked out now and get it dug out then fill it with crushed concrete. Limestone will compact nicely but will leave white smeary marks down the road when it rains. I buy direct from the quarry for everything, but the smallest load available is 10 tonnes, I pay £26 per tonne plus vat for nearly everything they sell. Find a local quarry and open open an account under self builder, try and find a large quarry that does ready mix as well.

I think your bigger problem will be cost, and finding somebody to do them to your timescale. You want to design a floor where all the metal struts are inline throughout the floor, if not it plays hell with getting services through.