Sheila, short of installing a ceiling, I believe you are stuck - as the building is what it is. An option might be to limit the plastics to an area closest to the riser, fencing (?) and then you only have to calc that area + 15' outside of it at the higher density.
On Tue, May 25, 2010 at 5:23 PM, Sheila Gabler <[email protected]>wrote: > Good Afternoon, long time lurker now coming out of the closet. > > I have a situation where I am dealing with a mixed commodity storage to > 12'-0" maximum within what was previously a garage for garbage trucks. > The commodity is mixed recyclable material - paper, tin, glass, cardboard > and plastics from 1 to 7 with a percentage greater than 15% placing it into > Group A plastics. > The material is brought into the warehouse and dumped into piles for > processing and bailing. The piles will most likely run down either side of > the building with a space in the middle for driving the trucks. The building > has a 2/12 slope with 15'-4" at the edge rising to 21''-4" in the center. > There is about 26% of the building over the 20'-0" mark. > I am fairly sure I need to use the >20 up to 32 ft for the roof/ceiling > height but am wondering if there is anything in the code that would allow me > to drop down one level to >15 to 20 as it means the difference between > replacing the entire system and replacing only the header and backflow > preventer. > We are also in the backwoods up here and locked into the 1999 Code at the > moment. > > Thank you, > > Sheila Gabler > HPF Engineering Ltd. > > 101-1402 McGill Road > Kamloops, BC, V2C 1L3 > Ph: (250) 828-7992 > Fax:(250) 828-0984 > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > (Put the word unsubscribe in the subject field) > -- Tom Poisal, CET _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
