Ceiling Height in Dormer after Dry Lining

E

ebowdia

Registered User
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Hi there,
I am looking at dry lining the upstairs bedrooms in my dormer bungalow. The plan is to dry line the knee walls, slopes and ceiling with 62.5mm insulated boards.

I just measured my ceiling height and it's currently 2.44m. If I proceed with my current plan, after skimming the boards, my ceiling height will be reduced to approx 2.38m.

The question is, could this cause me problems with building regulations if I ever decide to sell, since the ceiling heights will be below 2.4m? House was built in 1994. Thanks.
 
what shape is the room at the moment: if its a standard dormer with knee walls, slope and then a bit of flat, the chances are it doesn't meet the 2.4 requirement any way because there is a percentage calculation,


Its on page 11 here
http://www.environ.ie/sites/default/files/migrated-files/en/Publications/DevelopmentandHousing/BuildingStandards/FileDownLoad%2C1647%2Cen.pdf
 
Last edited:
Hi Branz, yes, it's standard dormer. Not sure if it currently meets the 2.4m requirement per your guide at the moment - I'll get out the measuring tape when I get home to check. If it doesn't already, what are the ramifications? If any?
 
Hi Branz, following the details you provided I did the percentage calculation and we are ok there at least.

Thanks guys, I think I'll play it safe and keep a min ceiling height of 2.4m, just in case.

I'll probably go with a thinner board and/or beef up the insulation above - makes most sense.
 
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