Cavity insulation

[theDIYkid]

Hi lads

I have a 50mm cavity between 2 skins on a very small room, I have dritherm 37 to full fill the cavity, silly question but is it 50mm into 50mm, and so if it were a 100mm cavity it would be 100mm dritherm into the cavity.
Thanks

https://www.knaufinsulation.co.uk/products/glass-mineral-wool/earthwool-dritherm-37-standard

 

[Celeronmanuk]

Yes, you're correct. The size is the cavity width.

 

[theDIYkid]

Thanks for clearing that up mate, do you know if you can cut the dritherm? as in make 100mm thick 50mm thick, yup you guessed it I bought 100mm but need 50mm lol a clown eh

 

[Celeronmanuk]

I doubt it. It's designed and installed so water runs down through it, so I wouldn't mess with it.

 

[theDIYkid]

ok thanks.

 

[^woody^]

It has a water repellent, but I can't see why you can't carefully tear it down the middle and make sure the cut face is on the inside.

 

[theDIYkid]

It has a water repellent, but I can't see why you can't carefully tear it down the middle and make sure the cut face is on the inside.

Agh great man will do that instead of getting rid thanks