Expanding foam is a nightmare . The slabbers I work after decided to squirt it in every joint lately that they don't cut right , horrible horrible stuff
I might give it a go , I burnt a hole in my tub so I must order something that will hold a 3 bagger . No matter what happens sure a nap sponge will make a job of it anyhow
I run over the 1st coat with a spat and usually mix fresh stuff for the 2nd coat .
I see RWF on youtube mixes 3 bags in a tub and uses the same tub for first and second coat , is the stuff not gone too stiff to spread by the time it comes around to the 2nd coat ? Maybe I'm slow ......
Are you leaving the steel exposed ? I would shoot on timber to the web of the beam and the underside where they stuck in a bit of a floorboard , cover it in felt and mesh .Then render it .
I can understand 2 or 3 quotes but how donyou have patients to show the job 6 times ?
It looks rough now but if he does a good sweep out it would start to look better already , I don't know how lads work in a mess like that . Mention to him that you are concerned about all the gaps and ask him...
Thanks Vincey are you using the the nela one that has a handle like the tapers use ?
When you say you are using the .7 on external is that for flattening base coat on EWI jobs
Yeah its handy for a quick flatten to get rid of lines , I have a 1.2 m speed skim but dont use it alot but yer mans steel blade gave a nicer easier finish and it was tidier than my yoke for smaller bits and pieces
I used a lads 32" refina spat for flattening trowel and found it handy for a quick flatten and for cleaning the ceiling line as i was at it .
Are ye using the .4 or the .7 thick one ? There is so much choice and I dont know which one I used .
Any other advice before I get one is appreciated...
Thanks Rigsby , I wouldn't mind finishing with a silicon top coat over a base coat with mesh if that will do the trick .
I havent a clue how breathable the engineer wants it and I doubt he knows himself either , it's a silly job , they are sealing up the inside of the walls completely on his say so
We are doing a job on an old building and the builder wants all the cracks outside chased and patched with lime render or is happy not to chase out the cracks if we will get away with a breathable basecoat /mesh and any type of sponged finish .
The walls are old stone walls with normal sand...
There was a blow door test going on on the job one day and we were explaining how airtight it was going to be to the old lad driving the digger out side . "Sure they will smother at that s**t " he said "there was seven of us raised in a 2 bedroomed cottage that had such a gap under the back door...
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