Onoff

It can be a pig to get pir to fit tightly between floor joists. Some people cut them boards 5-10mm short on the width then fill with expanding foam. An option is using mineral wool instead. @Ferdinand did similar I think with his Little Brown Bungalow refit? A few pointers here. https://www.ecologicalbuildingsystems.com/post/best-practice-approach-insulating-suspended-timber-floors Whatever you decide or get told, post up here. Someone will have seen it before and likewise comment as to good/bad.

That's my bedroom thread you're thinking of.

Bloody handy I never got round to gutting the en suite. I'm going to be living in our bedroom on my own for the next however long whilst Covid takes its course and until I test negative. Clearly, it pays to delay!

That's the last time I let you bung me a short length of pipe!

In the case of a knock down/ rebuild or a really large extension, as a self builder I think you would want to apply for exemption from the CIL before any work commences?

I'd bung you a short length in the post with a couple of inserts but I don't think anyone wants anything I've just tested positive for at the moment! A clue, it's not twins / @pocster's

I only mean inserts both ends on the short horizontal pipe. Is there anything written on it, maybe "Hep2O"..."15mm"? When the red pipe came off, did you notice an insert in the end of the grey pipe, (they can be metal or plastic)?

I'm guessing they didn't do this though / fit two separate opds.

You do for the short bit of pipe!

I'm a bit lost as to where the 50mm air gap is? Is this a suspended timber floor? How deep are the existing joists? Cleverer people will be along shortly. Just Google "routed chipboard UFH" and go Images. Use btw 22mm boards not 18mm. Putting underlay then carpet direct onto foiled EPS is a bad idea btw.

Wouldn't you put routed chipboard on top of the EPS? Then underlay and carpet atop the chipboard?

They use a piezo sensor that picks up the "noise" of rain drops hitting hit and sends a close signal. (Mate got a major touch allowing his house to be used as a show home for them!) This help? https://www.yarddirect.com/blog/Reasons-Window-Lock/

You're supposed to use a metal insert in the ends of the grey plastic pipes. It sort of reinforces the end where it goes into the plastic elbow. Indeed it would help at the red rubber pipe junction: Or as said above use a short bit of copper pipe instead of the plastic (going into the red). As an aside if you haven't already then invest in a cheap Vernier type caliper, invaluable for measuring pipe dia etc when asking questions. Random link. You can often pick up Lidl/Aldi for a tenner: https://www.amazon.co.uk/LEDLUX-Professional-Stainless-Digital-Caliper/dp/B08ZJDVPLJ/ref=mp_s_a_1_10?

That's because a decent sparky will only strip enough insulation off as necessary, double back the ends properly maybe, not screw down onto the CPC sleeving instead of the copper etc. A novice doing this could make for potential faults needing finding and sorting after the dead tests. Saying that some "professionals" make a hash!

A proper Rawlplug puffer is far, far better than blowing out the holes with a compressor or using a vacuum. https://www.screwfix.com/p/rawlplug-hole-cleaning-pump/6995F? You can get a special brush too.

Or like in the case of the can of Everbuild foam I had from TS (once) it was so bloody long and heavy it snapped off the gun.

I decided rather than buy the proper, corrugated foam strips to seal the ends of bitumen sheets on a garage, I'd use gun foam. Worked OK. Neighbour saw me doing it and decided to "insulate" the door on the side of his caravan that housed the battery. Cue him buying a new door! Foam blew it apart.

It's up there with your other unknowns like "trousers".

This, specifically low expansion, Soudal stuff is great imho. Sticky too. I've used it to stick say EPS sheet to brick with just a couple of bricks to hold the EPS in place whilst it sets. Spraying the substrates / gap with water from a plant sprayer helps with any foam I think. https://www.screwfix.com/p/soudal-soudafoam-expanding-foam-gun-grade-750ml/5026D?

I like Fischer FIS V 360 S.

No, that was the first installment of the fine.

Stainless steel "effect"...nice! ? Tight arse.

You might think about putting in (ball lever) isolation valves on circuits you're later going to hack into. Saves draining down the whole lot.

From real timber to veneered wood and £36 down to £7. All mouth and no trousers...nothing new there! How does veneered MDF do underwater then?

Come on then, show.