Interpretation #7322
Published June 22, 2014
Original Request
- Code Version
- 2010
- Code
- RESIDENT
- Code Description
- Residential
- Chapter
- 3
- Section
- R305
- Topic
- Ceiling Height
Question
1.What is it the intent of R305 regarding the minimum ceiling height of a single family garage? Garage is not identified. 2. What is the intent of the code for the minimum clearance, floor to bottom of the unit for an airhandler installed suspended below a garage ceiling?
Answer Published 06/22/2014 at 3:57 PM
The question needs to be asked as to if this is an existing
building or new construction? The code does not include
garages in the contemplation of non-habitable spaces or the
exceptions to ceiling height requirements. Since the code
does not specifically address garages, but does address
other non-habitable spaces, the code official has some
leeway in making her/his determination.
If this is new construction, the 7' should probably be
applied with a possible reduction to 6' 8" since that
height is allowed in bathrooms and basements, if the
local authority is comfortable with the reduced
height. If it is an existing structure and equipment is
being changed out, the reduced clearance should be
acceptable. Again, this would be a local decision since the
code is silent.
building or new construction? The code does not include
garages in the contemplation of non-habitable spaces or the
exceptions to ceiling height requirements. Since the code
does not specifically address garages, but does address
other non-habitable spaces, the code official has some
leeway in making her/his determination.
If this is new construction, the 7' should probably be
applied with a possible reduction to 6' 8" since that
height is allowed in bathrooms and basements, if the
local authority is comfortable with the reduced
height. If it is an existing structure and equipment is
being changed out, the reduced clearance should be
acceptable. Again, this would be a local decision since the
code is silent.
Commentary
1. The definition of habitable space states, in
part, "...storage or utility space and similar areas are
not considered habitable spaces." A garage would generally
fall within this exclusionary portion of the definition
of "habitable space" and, therefore, is not considered
habitable space. The ceiling height could be 6'8".
2. The Florida Residential Code does not contain a minimum
height requirement for an air handler installed in a
residential garage, only requirements for protection and
installation of the duct