attic heads

[cdafd]

would anyone say the attic heads are not listed/ designed for a large attic area that can be used for storage??? say 10' x 8' by 8'????

this head carries a light hazard listing, and 13 says "unused attic", but if ou look at the other light hazard uses it seems they would have more of a fuel load.

http://tyco-fire.com/index.php?P=show&B=&id=TFP610_12_2007

 

[stookeyfpe]

CDA

If the attic is being used for storage I would not allow the use of these sprinklers for the protection of the stored goods. Attic sprinklers are specifically designed for the protection of the structure - these are specific application sprinklers meaning to me that their intended function is for a unique condition.

 

[SprinklerDesigner2]

What Stookey said and I am pretty sure attic sprinklers are listed for light hazard only.

 

[cdafd]

sorry this is a townhouse

so if not light hazard one bump up?? OH-1??

 

[stookeyfpe]

If you saw my next door neighbors attic you may want to consider it Extra Hazard - the guy is fricking pack rat.

Given the unknowns I would accept LH or OH1. The fire loss history in attics is less than 1% of all residential structure fires so the sprinklers should control the fire until the boys & girls on the big red truck arrive.

However, I would not accept the use of attic sprinklers to protect stored goods in the attic as I previously indicated.

Why are they sprinklering the attic since I don't think its required in NFPA 13R or 13D?

 

[cdafd]

ok ok I called tyco toys and they said NO.

we have a local admendment requires atic to be sprinkled

 

[SprinklerDesigner2]

You must live in a warm climate or sprinklers in residential attics could really get messy.

The difference between OH1 and OH2 typically doesn't amount to a hill of beans on a project as long as you aren't fighting an extremely poor water supply.

I wish local people wouldn't make amendments to the standards. A short while back a friend of a friend contractor was building a restaurant of about 45 sq. ft.. All wood construction, wood trusses, plywood roof deck, everything combustible. While the state building code didn't require sprinklers the owner wanted sprinklers and since the architecturals, reflecting a non-sprinklered building, were completed he didn't take any sprinkler trade offs. I gave a price of $18K (sprinklers above and below) starting 1' AFF.

Figured 4" run-in, double check in the mechanical room with FDC on the building, Local fire offical rejected the drawings wanting 8" tap, 6" into the building, a new hydrant located at the pit where the FDC would be located.

All fine and good, I agree with the fire chief this is better protection, but the owner freaked over the additional $30K sprinkler system underground part of the project.

Owner stopped the sprinkler installation, paid us for our time to date and opened a non-sprinkled restaurant five months later.