Onoff

I've done exactly what you're advocating, that is got the packers level and CT1'd in place. Then slopped the mortar on. Put the "stones" on and they will only bed as far as the packers. Just can't recall where I used the technique. Not sure if shrinkage will be an issue as mortar/ concrete shrinks back a bit I believe.

Flints anyone? Got miles of ground ivy that's migrated from next door to clear then some conifer cuttings to burn. Must make that 50 gal drum incinerator.

Raked the wood ash across the base of the trench, started backfilling, removing the big flints as I went . Chucked a 100 litres of bagged compost in, more soil, more raking. Cut the lawn, chucked the cuttings in, raked, more soil. Got bored. Stopped. More tomorrow. Got a couple of compost bins can go in. Will hopefully get my Czar runner beans in pots tomorrow. I have no idea what I'm doing. Am making frame connectors in green PETG. This to make a bfo netted frame o/of the miles of 25mm steel box section I have.

Disclean.

As there's a skin the other side i.e the non cut side of the foam I'm hoping that will provide the airtightness. Primer at the ready, got some battens ready too for bracing.

...Googles sp295

I rest my case, you must be beating them off with a sh!tty stick! 😂

Is that your back alley on the right? Looks quite tight for getting anything up there.

Bet you're a proper fanny magnet! 😂

That seems good. Is that including the VAT? From Fixings Warehouse where I got mine it'd be £133.20 delivered. Watch for the use by date on the can. All December 2023 on the 4 I bought here.

OK I concede. Illbruck FM330 is whole different can of foam! To trim the excess I struggled to cut it with my normal fine toothed hand saw or the couple of old bread knives that are my usual goto. Resorted to the 18V Fakita multi tool. It's weird. Not like the crunchy run of the mill expanding foam. This stuff is like rubberised merengue...but in a good way. Not sure if when you cut into the shiny top skin you bugger the airtightness properties? I suspect not. It's bloody tough stuff!

No sh!t... 😂 Aren't there 3rd party outfits whereby you can get around this?

Wet, tacky or dry?

Schneider board wasn't it?

@Nickfromwales, what's the score then with using this Illbruck FM330 to stick the Marmox boards on? I was thinking: - Dry fit the boards and masking tape the upvc frame. - Measure and cut some batten cross braces to wedge the boards into position - Water spray both surfaces Then the main one: - Foam the 4 edges of each board will meet the wall and some lines in between at say 300mm centres? Aiming to go soffit, sill then sides. I'll shim the battens as required to tweak things plumb. When done, sharp blade to cut through any foam and the masking tape. On the assumption this foam is airtight I won't need a membrane around the reveal I'm thinking?

You'll be going all rcbo I trust?

Not wet, wet, just where I'd foamed a layer and let set then sprayed with water and foamed again I think.

Well it's been black like on a frying pan the ones I've done. This one I just rescued had a shiny steel shaft with no apparent coating.

Tbh I like doing them. Sometimes they're a goner if the central shaft is PTFE coated and it's worn through though. This one's back together, silicone greased up and working a treat.

Lost a couple of fax machines years ago after a storm (TN-S system). Same street where in another house up the road I had "blue lightning" come out horizontal from the socket during a massive electrical storm. Scared the sh!t out of me. I had the ring main fuse in my pocket and the DP main switch was off. Earth was the only path. Saying that it was all run in old imperial steel conduit. It happened!

Sorry, wasn't trying to be cocky using the acronym. More here: https://www.electrium.co.uk/about/news/5-things-you-need-to-know-about-amendment-2-18th-edition

Either direction is movement! Right, the Illbruck can says spray with water not PVA. Just dug the old foam out and it was still wet behind it where I'd sprayed before. PVA would have stayed wet. Imvho! Kind chap that I am I gave the new gun to the guy who's gun I borrowed on the quick. Just had to strip and rebuild his old gun here! I'm going in!

Laying the blame for redoing this squarely at the feet of @Nickfromwales & @Russell griffiths 😉

EDIT: I meant carbon MONOXIDE alarm...

Amazing service from the Fixings Warehouse down in Charing near Ashford. Ordered the Illbruck FM330 at 8 this morning. Delivered at 1.30pm. That with the pita the M20 is at the mo. Really pleasant delivery driver rang me. I was all "Erm...supposed to be tomorrow?" "Well we aim to please Sir!" Appreciate such prompt delivery might not always be convenient and they were probably going that way with the van anyway but it's worked for me today.