Need to build a firewall in the loft.

Gorgeestwo

We are moving in on Friday to a 1920's semi (fingerscrossed ) At present there is no firewall in the loft space, which we need to put up as part of the mortgage conditions and for piece of mind anyway.

But we are not sure of the best way to go about it and I can't seem to find much up to date information online about it.

We were thinking that it would be a double thickness stud wall that would be best, but the loft hatch is pretty small lol so have also heard about people using thermalite blocks

Would be great to hear anyones experiences, any help appreciated. Thankyou.

DVardysShadow

Blocks is best for this, particularly as a firewall. I am not sure whether Building Regs approval would be required, but if it is, they can be quite specific about what is required

wallbash

I did mine in thermalite blocks .

Gorgeestwo

thankyou very much for your replies

ormus

you can also use rockwool fire insulation. covered with chicken wire.
http://www.rockwool.co.uk/fire

LeeSouthEast

As a techie more than a builder, my first thought was "why are you building your internet firewall into your loft?"

ormus

to stop the scamming DG chap from next door, coming in?

LeeSouthEast

*grin* good answer.

AdrianW2

Some similar comments, but with more details, here. Seems sensible to talk to Building Control since their advice is free.