Getting colder

[Nonabeeone]

So it's getting colder now with snow forecast for tomorrow. I have a WBC and am wondering if I might quickly take off the roof and drape a large thick cotton pillow case over the 'inners', perhaps with bubble insulation inside the pillow case? Also, should I slide in the metal base of the verbal floor?

Thanks for any help

 

[Erichalfbee]

A 50mm thick piece of PIR cut to size on the crownboard will be fine

 

[BernardBlack]

A 50mm thick piece of PIR cut to size on the crownboard will be fine

Forgive my ignorance but can you explain PIR?

 

[jenkinsbrynmair]

celotex/kingspan

 

[BernardBlack]

celotex/kingspan

Thanks.

 

[Hivemaker.]

Thanks.

Recticel.

 

[Millet]

this should shed a bit of light on the subject, even myself could understand this video..

https://www.youtube.com/watch?v=2IHQ5dTnWP0