carbon monoxide 0.5-ft step GFE to FFE?
carbon monoxide 0.5-ft step GFE to FFE?
(OP)
I hope someone can share a code reference for the 6" step between garage finish floor and finish first floor for CO sequestering?
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
carbon monoxide 0.5-ft step GFE to FFE?
|
RE: carbon monoxide 0.5-ft step GFE to FFE?
RE: carbon monoxide 0.5-ft step GFE to FFE?
This isn't a matter of controlling nuisance stormwater.
This is the first time I've heard of this requirement...I just did some websearching and found a recommendation that a step or curb should be placed between the living space and garage to control CO and/or gas fumes from entering the dwelling--the information was found on a builder's page, but I need a solid national standard.
RE: carbon monoxide 0.5-ft step GFE to FFE?
Further, a 6" step would do little or nothing to mitigate gas migration, even gases that are heavier than air. They would migrate by differential pressure and air currents. Only positive seals will help against gases...a 6" curb, step or other "obstruction" would do nothing for that.
The National Fire Protection Assoc. (NFPA) has standards for detecting and warning against CO, but no standard for sequestering it.
I wasn't referring to errant stormwater. I was referring to the building code requirement for a garage floor to drain to the outside. On the dwelling side, this is usually mitigated by providing a differential slab elevation or "step".
I sincerely hope you do not incorporate this "sequestering" concept in a design. In my humble opinion, to do so it would constitute professional negligence. If you do, make sure your liability insurance premiums are paid.
RE: carbon monoxide 0.5-ft step GFE to FFE?
The original intent of the step was to prevent carbon dioxide and gasoline spills from creating a fire hazard. These scenarios were found not to be prevalent and the requirement in the code for a step was deleted a few years ago by the International Code Council.
The step also makes a compliance problem with the Americans with Disabilities Act.
Here is a discussion:
w
RE: carbon monoxide 0.5-ft step GFE to FFE?