When you've pulled the tarp back off your lively new roof that's ready to be glassfibered and find that it's been leaking and all your celotex has a bit of water between it and the vcl (and some between it and tge osb top deck too...) what do you do?
New roof, tarp, trouble.
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I'm in the pub. And then I'll be in da club (gotta pay the bills somehow). It's what to do when I wake up tomorrow with a sore head and lovely blue skies.
Thank God it's not raining?
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With that. Though you're not that much help re. what to do post thanking god we're post-pluvial.
If the OSB is dry then get some resin and mat on it.
If it is just a bit damp on the top surface then let it dry (or accelerate the process with your trusty heat gun) and get some resin and mat on it.
If it has had a good soaking then you might have to think about replacing the OSB- the resin won't bond properly, it'll delaminate after a year or so & be a right pain to sort out.
Top Tip for fibreglassing- if there's going to be a bit of a gap (couple of days) between getting the boards down and doing the fibreglass then put a coat of resin only (no mat) on the boards. Any water won't then get to the OSB. Don't leave it too long- the resin is slightly porous so any ponding will eventually leach into it and then into the deck.
The water underneath- how did it get there? From above or from condensation. If the latter then you maybe have a design issue to contemplate.
If it is just a bit damp on the top surface then let it dry (or accelerate the process with your trusty heat gun) and get some resin and mat on it.
If it has had a good soaking then you might have to think about replacing the OSB- the resin won't bond properly, it'll delaminate after a year or so & be a right pain to sort out.
Top Tip for fibreglassing- if there's going to be a bit of a gap (couple of days) between getting the boards down and doing the fibreglass then put a coat of resin only (no mat) on the boards. Any water won't then get to the OSB. Don't leave it too long- the resin is slightly porous so any ponding will eventually leach into it and then into the deck.
The water underneath- how did it get there? From above or from condensation. If the latter then you maybe have a design issue to contemplate.
Water underneath definitely came in when it rained. No heated space underneath so can't be condensation.
In that case no design worries, only problem you've got is if the OSB is soaked. The water underneath- odd drops or a small pool or 2 will look after themselves. If there's a bucket of water in there you need to get as much of it out as possible, otherwise it'll fester in there forever (VCL will obviously create a sealed space with no way for evaporate to get out)
Yep. About a bucket or so in there. Took the whole lot up, dried it, put it back down again. On the up side I didn't fall off.
I've now fibreglassed it & all seems pretty good. Things I learned: WEAR GLOVES ALL THE TIME. And one of those suit things. And use a bit less catalyst than you think you'll need and, most importantly: next time pay someone else to do it.
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