Why woud you put expanding foam along outside Side of the roof

JamesBond2010

HI can i just ask any Roofers why would you put expander foam on the outside roof side of the house along the ∧.What good would that do?

Gumbo

JamesBond2010 wrote: »

HI can i just ask any Roofers why would you put expander foam on the outside roof side of the house along the ∧.What good would that do?

Pic to explain?

Big Lar

I saw a lad stick on ridge tiles with expanding foam once upon a time, twas nothing short of disgusting.
Ridge tiles are till there after 10yrs or so

JamesBond2010

The more i think it was under the tiles, It is like this pic but not the house Just pretend the v shape is @ the siide of the house. The red line is where i saw all the foam when passing

daffodils100

I think some people fill up gaps with expanding foam to prevent birds building nests just under the tiles?

GreeBo

Was this the finish or just mid-installation of something?

Most foams will breakdown under UV light unless painted or covered...are you sure it was expanding foam and not lime mortar for example?

JamesBond2010

GreeBo wrote: »

Was this the finish or just mid-installation of something?

Most foams will breakdown under UV light unless painted or covered...are you sure it was expanding foam and not lime mortar for example?

It was mid installation It was expanding foam, it was all cleaned now on passing on way back can only see small traces of it.

JamesBond2010

They were a bunch of cowboys con artists i was told. Usual twats go around telling u,u need stuff done when you don't.