Barn box profile roof spray foam insulation ?

theopuppy said:
Getting the foam off the timber would be a tricky job and also make a terrible mess but I suspect this would be the way forward. I currently Have a barn full of hay( covered or wrapped) as I had to stock up due to the hay shortage.im thinking of putting another insulated box profile over the current box profile. The trickiest thing is trying to get someone to help me with it as it’s not an easy job and needs someone conscientious off the environment to not scatter the foam particles about and clear up.
I’ve looked at Screwfix.. no idea what is ok to cover the foam.. thinking another foam spray??? Nobody seems to have any idea even the foam spray people who all claim they have never seen the foam flaking and have no solution.

Fortunately it’s in the barn , not in the house. It’s used widely in barn storage facilities apparently.. hence how I came across it years ago.
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It's common in houses too, that particular industry has managed to spread misery broadly back when it was the done thing. Might be worth getting in contact with an architectural carpenter. They might be willing to come and cut it away from the timbers and stabilise the wood to minimise the rot.

Without seeing it and seeing how it is flaking I was thinking that something like this might be ok to stabilise it: https://www.toolstation.com/polystyrene-adhesive/p20789?store=ND

Might also be worth getting an electrician in - I would be concerned about damp shorting the electric.
 
theopuppy said:
I think your explanation sounds exactly what has happened in my situation. My thoughts are get the stuff removed off the wood and put board or tarp underneath the flat areas. Good point re wind whistling over the tarp and blowing the stuff out.. will try to seal it where flaking and then block the wind tunnel somehow. I’ve got Yorkshire boarding all round. So I’ll get the top bits blocked off to prevent wind driving through the slats.. birds nest up on one of the rafters so thankfully the nests are vacated atm l I did worry about the chicks getting covered with the foam bits this summer… never saw them fledge so not sure if they survived.

The difficult job is getting someone willing to help.. no takers so far from foam remodel companies. Will see what the local builders merchant have re covering for the underside.

The adjacent stables are having new insulated box profile in December to replace the rubbish Onduline .. yes it’s eye watering… been saving up for two years.

Great suggestions thank you.
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When I suggested tarp I envisioned it being droopy in the middle a bit, but then pulled up tight to the roof so no way for bits to get out. This is all such a nightmare for you!
 
PeterNatt said:
In the event of the company having ceased trading or gone into liquidation, you need to contact their accountants or the liquidators and determine who their insurers were. Then make a claim against their insurers.
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Thank you for that information as I have no idea about these things.
Another foam spray company has said they can spray over the original layer(£1800) and seal it (£450) but that doesn’t sort out the wood damp issue. I believe to remove from the wood trusses would be approximately £1000-£2000 according to a local foam remover company’s website plus I then have to make sure no water is getting in to compound the problem which means some sort of covering over the existing box profile.. looks like I will be grateful if I can get some claim to go towards the escalating costs.
 
How long is it actually possible to go after the insurers? We have had clients who have not been able to do anything and have to pay out to have it removed. Horrible stuff
 
I'm Dun said:
When I suggested tarp I envisioned it being droopy in the middle a bit, but then pulled up tight to the roof so no way for bits to get out. This is all such a nightmare for you!
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Trying to work out what to do for the best is problem 1. Getting someone to do it is problem 2. Paying for it is problem 3.

Yes the tarp would droop but where it would be pulled up wouldn’t be complete sealed so I wonder if bits could still escape if the wind got in? My brain is worn out trying to work this out 😥.. thanks for the suggestions and support.
 
DabDab said:
It's common in houses too, that particular industry has managed to spread misery broadly back when it was the done thing. Might be worth getting in contact with an architectural carpenter. They might be willing to come and cut it away from the timbers and stabilise the wood to minimise the rot.

Without seeing it and seeing how it is flaking I was thinking that something like this might be ok to stabilise it: https://www.toolstation.com/polystyrene-adhesive/p20789?store=ND

Might also be worth getting an electrician in - I would be concerned about damp shorting the electric.
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Thanks for the tips and the link.. the adhesive takes a while to set.. reviews aren’t great… assume this would ‘bind’ the foam to reduce or prevent flaking? Definitely worth a try . Will see if can find an architectural carpenter.. never even knew such ann occupation existed. Thanks.

Had the joy of electric in the barn this evening as it wasn’t raining and had all day to dry out after yesterdays deluge. I’m switching it off at the mains every night and when it’s raining… electrician can’t get to the wires atm as they are covered in foam but I will get it checked when the other bits are sorted and the foam has been removed from the wood.
 
Oh wow, they foamed over cabling 😬. You really did pick up a bum deal with those installers, my goodness I feel for you.

Yes, if the foam is flaking of it's own accord it is because the chemical bonds in the foam are breaking down. Painting it over with something compatible will reactivate the material and create new chemical bonds that should bind the surface back together. No idea if the product I linked would be suitable for this without researching - I was just giving an example of the sort of thing that is available.
 
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