Loft advice needed - any roofers advice?

[Evoluzione]

dasherdiablo1 said:

I'm thinking that the best option is to use one of the Superquilt multi-foil systems and staple it onto the inside of the rafters.

Is this ok to do ie it won't cause any condensation issues? I'm hoping that as the air will still be circulating through the tiles and around the void between the tiles and foil it should keep the timbers in good condition?

Thanks in advance!

Yes that would be fine, you will need to screw battens over it to hold it up though, staples won't be good enough. Try to get it tight across the rafters with as little sag as possible if you are going to board over it afterwards
DON'T fill in between the rafters, this will block the through flow of air.

[Little Lofty]

mgtony said:

Would those circular soffit vents back and front do the same job?. Easy to fit, a hole saw and push them in.

Slate roofs rarely have soffits.£200/£250 should cover supply and fit of 6 slate vents.

[KrissKross]

Bump.

Question, if you have a roof with old tiles, and very old felt that has been plasterboarded on the inside to create a loft room. Then what insulation should you use if the room is super cold and need to be a living space?

We have been told conflicting things but the consensus seems to be:

1, Use expanding foam around the edges and any large exposed gaps where the wind is coming in (200 year old property)

2, To then make holes high up in the walls and put in Vermiculite Insulation Granules, filling up the gaps between the eves but still allowing some airfolw.

This stuff: https://www.travisperkins.co.uk/Dupre-Minerals-Ver...

If the room is then heated would this not keep some of the damp issues mentioned under control?

Thanks.