Hi we do a lot of modern renders, and i also teach for a co that make decorative renders, we have done small boundry walls up to large a Travelodge and Premier inn, loads of pics and refrences, drop me a pm if you would like a chat
I personally would not use lime in a scratch coat , as it can affect the performance of some water proofing additives, but that's my personal opinion
but the volumes that roughcaster has suggested are ok, but then again i would use a 6:1:1 sand/cement/lime mix in my top coat and no additives...
Being an older 30's house the ceilings are more than likely lime plaster on lath with horse hair or similar mixed in , difficult to tell from the pics, i would personally just over board the ceilings and skim , but at the end of the day it's your decision as to whether you get em checked for...
Don't know where you get your SBR from but mine is definitely diluted in water, at the end of the day the wrong product was used , and yes there is a barrier there but nothing will stick to it!!, fix a membrane over it and save your self some trouble
to be honest i don't think using sbr and cement as a "spatterdash" will help you out of this situation, as far as i am aware Thompsons is silicone suspended in a solvent, so this will repel any thing that you apply that is water based, either create a really good mechanical key (grind out all...
Heres a system we did on a travelodge that was timber framed and clad in aquapanel, renderd in sm700 with fibreglass mesh then topped in silicone grade conni s, very flexible system
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Not known any of em to back up a guarantee yet , they always blame it on a construction/design/build / applicator issue, never ever their fault or faulty product, but there are better systems out their and you may want to consider using a render carrier board rather than eml and using a high...
This is paint technology mate nothing like plaster, normally prime the render then apply as tight as possible and rub up with a plastic float as soon as it starts to cure ( temperature,humidity dependant)