Spray foam insulation

[diesel1]

I'm wanting to insulate my workshop (30x15) steel frame portal building, thinking spray foam insulation would be easiest, anyone done this? Thoughts please!

 

[robs1]

Yes we did a steel framed shed we converted to a theatre rehearsal studio was quick and not too dear, it was 40 by 45 and 12 ft to eaves, was done floor to roof as well as the roof itself.would use again.

 

[diesel1]

Who did you use to do it, what sort of price if you don't mind telling, thanks.

 

[How much]

check with your insurance company before you do it , if its flammable maybe not a great idea in a workshop !
A shed that was for sale locally 20 years ago that had been spray foam insulated and I was interested in buying it but the insurance company we used at the time wouldn't touch it and since Grenfell I would imagine they are much more nervous about it now than then.

 

[Doing it for the kids]

Grenfell was caused by the chimney afffect I thought drawing up air through the insulation gap Mostly.

the foam they use now, I think, doesn’t burn, as in you can’t light it but like most things, if there is a fire beneath it and it combusts it then gets potent.

sprayed our shed, was good value and worked well. For another few hundred they sprayed it white after, made it much brighter

 

[robs1]

Who did you use to do it, what sort of price if you don't mind telling, thanks.

We used the company that advertise (or did when I read it in the fw) got a feeling it was about 3500 iirc for 50 mm which is meant to be the same as insulation as kingsman

 

[Surgery]

Grenfell was caused by the chimney afffect I thought drawing up air through the insulation gap Mostly.

the foam they use now, I think, doesn’t burn, as in you can’t light it but like most things, if there is a fire beneath it and it combusts it then gets potent.

sprayed our shed, was good value and worked well. For another few hundred they sprayed it white after, made it much brighter

Who did you use ?

 

[Nigel Wellings]

check with your insurance company before you do it , if its flammable maybe not a great idea in a workshop !
A shed that was for sale locally 20 years ago that had been spray foam insulated and I was interested in buying it but the insurance company we used at the time wouldn't touch it and since Grenfell I would imagine they are much more nervous about it now than then.

The comments about letting your Insurers know about any insulation in farm buildings be it Kingspan type panels or sprayfoam are 100% correct. Insurers are totally paranoid about it and if not disclosed to them it can potentially invalidate a claim. Make sure you find out what the fire rating is on any insulation and then let Insurers have details before you install it.

 

[melted welly]

I'm wanting to insulate my workshop (30x15) steel frame portal building, thinking spray foam insulation would be easiest, anyone done this? Thoughts please!

What sort of sheeting is on shed?

If fibre cement then don’t do it as the foam will stop the sheets breathing and they’ll deteriorate more rapidly.

 

[Doing it for the kids]

What sort of sheeting is on shed?

If fibre cement then don’t do it as the foam will stop the sheets breathing and they’ll deteriorate more rapidly.

@grainboy have you found this?

 

[theboytheboy]

How do you dispose of the sheets if they have been foamed and the building needs to be replaced/demolished?

Assume it's all got to go on a skip?

I've got some pretty rough buildings that I let out, the tenant wants to spray foam them but am I gonna be left with a headache......or will it be worth it by extending the life of the shed.

It's tin and wood construction above breeze block walls.

 

[grainboy]

@grainboy have you found this?

Be okay on new or nearly new , but anything that is deteriorating will only make things worse,

 

[theboytheboy]

Be okay on new or nearly new , but anything that is deteriorating will only make things worse,

Thanks.

 

[Hampton]

As someone who has recently replaced a slate roof on a large farmhouse I would say don’t touch spray foam insulation with a barge pole.
Over time, it not only rotted all the timbers, but none of the slates were salvageable as the foam stuck so strongly to the slate, it split them along the layers.
I’d spend a bit more and use kingspan or rockwool

 

[Flatlander]

Very common here in farm buildings. Mice and rats dont seem to like it and wont tunnel in it where as rockwool is a breeding ground for mice. I’d only use the spray foam on the roof at it’s harder to insulate with anything else. Here it’s close to double in price compared to rock wool to the same R Rating 50 mm wouldn’t do much for insulation here.

 

[KennyO]

Birds love to peck it in our experience and create mess.

It does seal really well in the right place but would be worried about future disposal issues.

 

[grainboy]

for those without Facebook

Very common here in farm buildings. Mice and rats dont seem to like it and wont tunnel in it where as rockwool is a breeding ground for mice. I’d only use the spray foam on the roof at it’s harder to insulate with anything else. Here it’s close to double in price compared to rock wool to the same R Rating 50 mm wouldn’t do much for insulation here.

Disagree, last year took down large insulted Potatoes store, not that old, on many of the wall steel purlins they were full of rat runs,

 

[Adeptandy]

Having problems with ACCS on an old potato store, rats have got behind the spray foam and created runs, thankfully they only come back in after the crop is out, short term store, but potential problems seem as major as actual ones nowadays, never had a problem with vermin in there while crops stored.

 

[roscoe erf]

Disagree, last year took down large insulted Potatoes store, not that old, on many of the wall steel purlins they were full of rat runs,

Confused here

 

[Doing it for the kids]

If you have concrete purlins it’s the easiest option.

if you have steel then Kingspan / ply is the way forward.

ive sprayed an old crendon shed for commercial use, total conversion cost was paid for within the first year.

i suppose it depends what value the insulation unlocks?