markc

Breaking/digging up a slab is never going to be great, much better to get around the problem with additional above ground works if the slab/DPM/insulation is all good

I reckon it will go ahead sometime in the future when people realise that this would give us access to a lot of low cost gas and the alternatives are not working out.

Nothing wrong with digging out and digging again on the right line, strip footings should only be taking vertical loads so not relying on sideways compressive strength of soil etc. Moving a trench into previous backfill is a big no-no and you would need to increase depth of trench to get back to solid ground

Self build or house builder?

What was used to fix the aqua panel, I was asked to look at an install causing smoke and fumes …. Cement board had been “fixed” using solvent adhesive, silicon! And packed out with bits of MDF ?

Just how it should be ???

That’s is just begging for a @pocster comment

This gives you some suggested values. https://www.vent-axia.com/sites/default/files/Ventilation Design Guidelines 2.pdf volume of property is found by multiplying floor area by height to give cubic metres air. multiply this by air changes per hour ACH

Ground transformers are expensive due to the compound or “shed” to house them plus they are much stronger construction. overhead requires poles but the conductors are much cheaper per metre

As far as I’m aware and understand, once the process is in the hands of the conveyancer then both parties have given over their rights and designated the solicitor etc. As acting for themselves so an exchange of contracts is in effect a binding change of ownership

No, air changes per hour is the number of complete complete air changes in the property or room… if volume of building is 100 cubic metres and 2 changes per hour required, then ventilation system needs to be 200 cube per hour minimum. or you need to heat/cool 200 cube per hour to maintain temp

Internal walls connected to the outer skin would need to be included in heat loss, but internal walls on an internal skin are not a thermal bridge

That’s my tea sprayed over my desk!

Too many variables to answer, where is it? Weather conditions etc. Access? Who will lift the materials etc etc. Best bet would be a couple of local quotes

Only the other day I was wondering what had happen to Zoot and heating-gate

Doubtful anyone else will ever notice. You are too close to the project so you see everything, don’t allow it to eat into you.

Yes they are designed for a maximum deflection but Nick is spot on regarding bounce. Pozi’s behave very differently from solid timber or I beams in that the “broken” web allows top and bottom cord to act like elastic as opposed to deflect and return

I cannot get the link to open so can’t see the item. if you can tile around something, you can usually slate around it too as slate is much for forgiving and trimmable.

I don’t understand why a Juliet cannot be higher than 1100? Is this if it’s used for fire escape reasons? If it was a parapet or balustrade etc it can be higher but not lower

Exactly, the stands had raised timber floors and were bouncy walking on them. Top hung doors would probably have been ok but the floor movement caused the slides to bind

ahh, yes so it’s not that you want to seal the downstairs from the upstairs but rather looking to stop cold air coming into the floor void. Tony tray is out of the question so I think you are down to spray foam around the joists/walls or tightly packed insulation. the danger here is trapping moisture against the joist causing rot to set in.

Hmmm, did you wrap enough turn of PTFE to make the joints tighten up as then were wound in? Secret is to create a taper with the tape so the joint becomes progressively tighter and locks up before bottoming on the socket

Haven’t tried that one but the evolution machines aren’t bad at all, most have low rpm but I see this is 3500 so should be ok for construction type jobs. if you are wanting to do cabinets etc then a track saw is miles in front. if you are wanting to cut joints then it’s a decent table saw anytime

Has to be a thread mix match

At build it live, some of the sliders would not move because the stand floors were flexing.