Originally Posted By: Brian A. Goodman This post was automatically imported from our archived forum.
Kevin,
Are you asking about minimum floor area for a “habitable room”? I’ll have to admit that I don’t know what floor glazing is, if that isn’t what you mean.
If it is, the minimum is 70 square feet according to the 2003 IRC (Section R304).
Originally Posted By: phinsperger This post was automatically imported from our archived forum.
The building code up here referes to glazed area as the glass area (widows, glass panes in doors, glass block, etc). There are restrictions on the maximium percentage of glazed area for fire reasons. It has to do with adjacent building being on fire. I can get more in to it if that is what you are talking about.
Originally Posted By: Robert Koch This post was automatically imported from our archived forum.
As stated above, min floor area for habitable room is 70 sq ft. Minimum aggregate glazed area must be not less than 8% of the floor area. Minimum openable area to the exterior is 4% of the floor area. There are exceptions for artificial light and mechanical ventilation.
Of course, this is different (not different really, just additional requirements) for sleeping rooms. Emergency escape and rescue opening required for all sleeping rooms. Net openable area 5.7 sq ft for non-grade level windows (there are additional requirements to meet emergency escape opening).