Plasterboard over rafters

[hil112]

HI can anyone help?

I have a decent level of insulation in my loft under the solid timber floor, and dont have any real issues with esaping heat.

My roof space is a traditional cut roof to an apex with 70mm rafters. We have not insulated this space. I would like to plasterboard directly over the rafters if possible.

1. Can I use standard 12.5mm board then tape and joint over?
2. Should I use foil backed
3. do I need to leave an air gap at the front and back of the house (low down and also at the top of the apex?)

Regards

 

[TonyW2]

Would be better in floors and lofts forum. Most answers/queries are in the FAQ

What do you wish to achieve? Is it just cosmetic for storage or to create an habitable space?

 

[hil112]

would like to create extra storage, but make it look nice so the wife can go up and down. not habitable

 

[TonyW2]

//www.diynot.com/forums/viewtopic.php?t=120638

Have a look here. The search facility can be useful when there is no expert on tap!