NFPA just added a sprinkler requirement to NFPA 101 for 1&2 family (new construction). Thoughts? Do you think your AHJ will adopt this rule? That would be the only metal pipe iun a house around here, assuming they won't let them use PVC. I usually think of black iron when I think of sprinklers.
I find the plastic interesting. I put sprinklers in my house in Md because it had some obvious fire traps. I ended up with 4 heads in the garage, 2 in the split level foyer 2 in the utility room under that and 1 in the hall outside the utility. Folks (including the insurance company) beat me up because I ran everything in 3/4" copper. They said it should be black iron.
I guess that thinking has changed.
Do they just use garden variety CPVC?
In my house I have a well. Can I call this a firepump ;-)
#154490 - 12/26/0509:55 PMRe: Sprinklers in 1&2 family?
Moist people do not adopt the NFPA 101. There is a rule in the IBC that requires multifamily dwellings to be sprinklered, but it does not apply to single or two family. There were proposals for this, but they were rejected.
Ryan Jackson, Salt Lake City
#154492 - 12/27/0509:59 AMRe: Sprinklers in 1&2 family?
Sprinkler systems once were rather involved systems, seemingly designed for perfection, rather than as a bare minimum for safety. Some argued, with great success, that they were aimed at protecting property rather than lives.
This all changed when a separate code was written for dwellings. This greatly simplified standard made household sprinklers practical. In NFPA 13D, the requirements for alarms, fire pumps, reservoirs, etc., are greatly simplified. Many things you "assume" are required are not required for dwellings.
And not a moment too soon; the homes of today are nearly twice as large as the homes we grew up in. Our posessions- the things that do most of the burning- have increased exponentially. Long gone is the day when a family can put all their belongings into a push-cart!
I cannot speak to the use of copper pipe; I do know that plastic is allowed. I also cannot say whether the sprinkler code allows for "normal" plumbing to be used; in industrial settings, it is required that specially rated pipe be used.
Yet- assuming there is no legal requirement for any sprinkler system at all- I applaud any attempt to increase protection. Any system is better than none, and most fires are controlled with the tripping of only a head or two.
#154493 - 12/29/0505:46 AMRe: Sprinklers in 1&2 family?
Wirsbo makes PEX tubing and components for sprinkler systems. They don't require anywhere near the volume of water as a large commercial installation does and are still effective. It makes a lot of sense to have a sprinkler system installed, particularly in a new home.
Our new home will have a LOT of PEX tubing as we'll have radiant heat and the plumbing lines will also be PEX tubing. It's very easy to run, connection time is small, and it's better than dripping solder down your arm!