Nice work Paul this looks very neet & clean. Talk about straight walls.
The fine tuning for plumbness must to be a breeze. Any thermal bridging from that inside steel channel ?
Cheers!

It is, as you say 'a breeze' to get the walls straight. As for thermal bridging, the track is so thin and only 1" deep that once you have either strapped out the ceiling, or just dry-walled/sheet-rocked, or used Nudura's ceiling technology, the track is lost inside the insulation, so it wouldn't be a factor. It is probably not for everyone, but if you try it, it sure makes a nice finish!!
Paul Stevens

Paul,

Interesting pics and yes that top track definitely helps to screed off the concrete and keep a nice straight line to the wall.

I'd recommend a bottom track to the inside and outside courses, and sticking/foaming the bottom row of blocks into the track. Belt and braces stuff I know, but it hardly takes any time and boy, does it increase my feeling of confidence as the concrete goes in!

The top inside track will cause a potential cold bridging issue, but if the track is made with only a small, say 1cm return on the inside edge it should be possible to lift it off after the pour is complete.

On multiple pours/lifts on 2 story plus houses I also use track to protect the top edge of the blocks at each height/pour. It stops the dobs of concrete that always seem to fly from stopping later courses of blocks siting down tight. After the pour, lift the tracks off, pressure wash them and use again. Makes for a clean job.

But no safety rails to the scaffolding boards...? In BC, Canada where I live that would be a health and safety issue for sure.. Surely the hire company you rented them from should have supplied them, it looks like there are sockets for the posts to drop into. Eh? ;-)

Colin.

(Certified Quad Lock installer.)

Colinmcc, shhhhh, don't say that to loud, the labour board will be hunting me down about the safety rails. It is also a health and safety risk in Ontario as well. My distributor has them also but I keep forgetting to have him drop them off!!
Paul Stevens

Paul,

My lips are sealed! But call your distributor, especially if you let the customer/home owner up on the scaffold ;-)

I was brought up in Britain and there we had to not only have a hand & mid rail, but also a bottom rail, the idea being that with just a hand rail someone knocked unconscious or having received an electric shock could hit the floor and roll off the edge of the platform.

So on my braces I got a local metalworker to add a set of brackets at the bottom of each post, we stand a plank on edge and drop the post in, trapping the plank. Belt and braces again, but I'm 56 and never had an accident on one of my sites yet.

(Apart from cutting my own left hand index finger off with a new xacto blade, right through the joint, I didn't know that my helper had 'helped' by popping a new blade into the knife which I'd beem cursing as having a very blunt blade just a few seconds before. I grabbed it, pressed hard on some thin cedar siding and .... oooouch! off to emergency ... ;-(