Insulation for metal workshop roof

[OldWood]

Ahh - foam !! I went to a wedding reception in an old barn near Canterbury that had been turned into reception facilities. All the wooden walls of that had been coated in an expanding foam - it looked slightly yellowish and had obviously been sprayed on from a large gun of some sort.

There is no way that that could have been a fire hazard - in fact whatever the material it would have been effective in protecting the barn timbers.

I've reminded myself that it was called Winter's Farm on the south side of Canterbury. I got the impression that the owner was the sort of guy who might well help you if you wrote him about it. In fact here you go

http://www.akentishceremony.com/uk/venue/venue244

OW

 

[Digit]

When this was under development we soon found out about the fire risk, it burned like fury. Not because it was PU, but because the foaming agent contained hydrogen!
Remember the furniture fire pics?
The foaming agent is no longer H.
As supplied for roofs etc it has either class one or class two category fire risk.

Roy.

 

[Tenko]

Following on this topic .....

I'm in the process of converting my garage to a workshop and need the same insulation advice re the roof. Well 2 of the benches are complete and the scroll saw and router tables are done :roll: So getting there.

Its brick construction about 1940 and has the traditional rafter construction. The roof tiles are asbestos unfortunately. I'm currently using a large calor gas fire but not suffering condensation problems because the heat disappears through the roof in a rapid rate.

Mick.