Smoke detector placement residential
- Thread starter LMaloney
- Start date
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bphgravity
Senior Member
- Location
- Florida
Re: Smoke detector placement residential
You need to review Chapter 11 of the NFPA 72 if adopted by your jurisdiction. Otherwise, follow the instructions as provided by the manufacturer.
Generally speaking, the smoke alarms need to be placed outside each sleeping area. This may include a living area. If there is a hall with a lower ceiling between the sleeping room and living room, a judgment call needs to be made as to the best location. Our jurisdiction will permit either location as long as the hall is not longer than roughly 15'.
You need to review Chapter 11 of the NFPA 72 if adopted by your jurisdiction. Otherwise, follow the instructions as provided by the manufacturer.
Generally speaking, the smoke alarms need to be placed outside each sleeping area. This may include a living area. If there is a hall with a lower ceiling between the sleeping room and living room, a judgment call needs to be made as to the best location. Our jurisdiction will permit either location as long as the hall is not longer than roughly 15'.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Re: Smoke detector placement residential
The NEC only applies to the wiring for the smoke detectors in your application. Where and how many is covered in NFPA 72. Check with your AHJ or actually the instructions packed with the smokes are pretty good....
The NEC only applies to the wiring for the smoke detectors in your application. Where and how many is covered in NFPA 72. Check with your AHJ or actually the instructions packed with the smokes are pretty good....
jtester
Senior Member
- Location
- Las Cruces N.M.
Re: Smoke detector placement residential
In addition to NFPA 72, you might refer to the applicable building code. We are under the International series, and they require smoke detectors immediately outside each sleeping area as well as within.
Jim T
In addition to NFPA 72, you might refer to the applicable building code. We are under the International series, and they require smoke detectors immediately outside each sleeping area as well as within.
Jim T
allenwayne
Senior Member
Re: Smoke detector placement residential
As stated NFPA 72 does set standards as far as instructions hey are usually a bit vague,electrically the only thing the NEC deals with is afci.Whoever does the final building inspections for that sres csn give the best answer,it`s part of every building final they inspect
As stated NFPA 72 does set standards as far as instructions hey are usually a bit vague,electrically the only thing the NEC deals with is afci.Whoever does the final building inspections for that sres csn give the best answer,it`s part of every building final they inspect
JohnE
Senior Member
- Location
- Milford, MA
- Occupation
- Electrical Contractor, Inspector
Re: Smoke detector placement residential
In MA, residential smoke detector placement is dictated by the Massachusetts Building Code, 6th edition. It does not address changes in ceiling height. Prior to issuance of a building permit, 3 sets of plans are supposed to be submitted, and these should show placement of smokes. Once accepted by building inspector, a stamped set goes back to contractor and another to Fire Dept.
In reality, some building officials do not require detectors to be on plans. Additionally, local fire dept. has to sign off prior to c.o. and they have some wildly varying interpretations of what is required. As well as some varying procedures on permits and inspections.
In MA, residential smoke detector placement is dictated by the Massachusetts Building Code, 6th edition. It does not address changes in ceiling height. Prior to issuance of a building permit, 3 sets of plans are supposed to be submitted, and these should show placement of smokes. Once accepted by building inspector, a stamped set goes back to contractor and another to Fire Dept.
In reality, some building officials do not require detectors to be on plans. Additionally, local fire dept. has to sign off prior to c.o. and they have some wildly varying interpretations of what is required. As well as some varying procedures on permits and inspections.
Re: Smoke detector placement residential
In NM we are required to not only meet the NEC but the UBC (Uniform Building Code).
It requires a detector be installed in any room where the ceiling height of the hallway serving the bedrooms, exceeds that of the hallway by 24" or more. I got this from my 1997 copy of the UBC.
note 310.9.1.4
In NM we are required to not only meet the NEC but the UBC (Uniform Building Code).
It requires a detector be installed in any room where the ceiling height of the hallway serving the bedrooms, exceeds that of the hallway by 24" or more. I got this from my 1997 copy of the UBC.
note 310.9.1.4
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