Hi All

Im having a bit of a time with the Trocal install guys, most of which we have resolved, but there is one or two things outstanding. I dont have time to explain our dealings yesterday, as Im pressed for time before they come in today - but I will in due course, under the heading of things to watch out for!!

 - the roof is ply deck with VCL, 140mm insulation and Sikaplan S 1.5 membrane

 - I have a 400x400 box, which risies 150mm (i think) above insulation for the stove flue, which will be flashed. Are the upstands supposed to be insulated?

 - Similar question regarding the rooflight, which has some insulation as part of the kit, mainly inside or within the structure of the kit - insulate the upstands on the outside?

 - Are the cracks between the insulation supposed to be foamed - Im especialy thinking of where the boards meet from opposite sides of the apex?

I cannot find the official Sika/Trocal details for this membrane (Sikaplan S 1.5) - anyone got a link?

Thanks - Im expecting them in shortly/today...

TIA, Jimbo

 

Edited September 6, 20233 yr by Jimbo37

Also, this is where the 140mm boards meets at the apex, with a v shape gap - should this be filled before taping? Seems like a condensation hotspot to me!