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Should I Have A Sprinkler System? Vol. 1

By
Home Inspector with Home Inspection and Investor Services, Clayton

What happens if you have a fire in your home?  The first thing that happens (hopefully) is your smoke alarms/detectors sound with that annoying alarm that occurs every time I broil meat.  The next thing that happens is you evacuate the house or in some cases look for the fire extinguisher and try to handle it yourself.  A smoke detector is designed to save lives, but not your home.  Don’t get me wrong here I’m not advocating going “detectorless”, quite the contrary, they are a necessary part of a homes safety equipment. I’m just saying your home should have more.

Scenario: You just signed a contract to build your new home and your specifying what is to go into that home.  Definitely, you should have sufficient smoke detectors and Carbon Monoxide detectors, but what about a home sprinkler system?

Home Sprinkler System Myths.

When a one sprinkler head is activated, all the sprinklers activate.  This is not true.  The only sprinkler head that is activated is the one that has sensed the temperature rise. The others will not activate unless they sense the higher temperature.

A sprinkler could accidentally go off, causing severe water damage to a home.  This is not true.  With 50 years of data to back present information, there is a very remote chance of this happening. In fact, home sprinkler systems are specifically designed to limit this possibility.

Water damage from a sprinkler system will be more extensive than fire damage. This is not true.  Sprinkler systems limit the growth of the fire and suppress smoke and heat damage.  If the alternative is to let it burn until the fire department arrives the damage in an unsprinkled house is much more costly than a sprinkled house.

Smoking or cooking could set off the sprinklers. This is not true. Sprinkler heads activate at 155 degrees F. Since they are mounted on the ceiling it is almost impossible to activate a sprinkler head by any normal activity.  The heads are also covered to prevent accidental damage to the head itself.

These are the usual objections to a home sprinkler system now lets talk money.  The average home sprinkler system is less than 1% of the total cost of the house. Depending on the insurance carrier and your location, the savings on your home insurance bill could be as much as 15%. 

Jack Gilleland

Home Inspection Services

Clayton, Ohio

Sources: Sources: USFA (United States Fire Administration), FEMA, NFPA

 

 

Myrl Jeffcoat
Sacramento, CA
Greater Sacramento Realtor - Retired

I am afraid that a malfunctioning sprinkler system could cause more in water damage, than they could actually save in a fire.

Feb 18, 2009 07:50 AM
Jack Gilleland
Home Inspection and Investor Services, Clayton - Clayton, OH

Myrl, your thinking in the past and 6 months ago I would have had to agree with you, but due to my own ignorance.  The insurance companies have even done an about face on this subject.

Feb 18, 2009 07:57 AM
Valerie Osterhoudt
Johnson Real Estate, Inc. - Cromwell, CT
ABR, Cromwell, CT Real Estate ~ 860.883.8889

Jack.. I've learned something new.  Thank you.  I'll pass this along to others too.  I always thought that as soon as one sprinkler is activated.. they all go off. Hmm.. Never too old to learn. 

valerie osterhoudt

Feb 18, 2009 11:36 AM
Steven L. Smith
King of the House Home Inspection, Inc. - Bellingham, WA
Bellingham WA Home Inspector

Mr Jack,

I will be the judge. If the sprinker going off by accident would result in Izzy having more baths than I am all for it.

Judge Nutsy at the company keyboard

Feb 18, 2009 12:58 PM
Charles Buell
Charles Buell Inspections Inc. - Seattle, WA
Seattle Home Inspector

Damn Jack----I want it to be like the movies where every head within a four block radious goes off:)

Feb 18, 2009 01:20 PM
Jack Gilleland
Home Inspection and Investor Services, Clayton - Clayton, OH

I am surprized that so few know that the heads go off one by one. 

Also a 1 1/2" fire nozzle will put out 60+ gallons a minute as compared to 6-8 gallons per minute from a sprinkler head.

Might be an easier way to give Izzy a bath.

Feb 18, 2009 01:47 PM
Ian Niquette
Square One Home Inspection - Markesan, WI

Thanks Jack, this is really good info for those wanting to build new. that can be quite a savings for such a small  investment, if you shop around. And thanks for reblogging my insulation stuff, glad you liked it.

Feb 18, 2009 02:33 PM
Jeff Remas
Advanced Code Group - Delray Beach, FL
Inspector Jeff

Very controversial subject right now because of the ICC vote but a very important safety need.

Feb 18, 2009 03:49 PM
Jack Gilleland
Home Inspection and Investor Services, Clayton - Clayton, OH

Ian As technology has advanced this becomes more and more feasible for the homeowner. In my next blog I will be giving out links that will show how practical this is becoming.

Jeff thanks for the comment and your right. In time this will become an integral part of home safety.

 

Feb 19, 2009 02:18 AM
Russel Ray, San Diego Business & Marketing Consultant & Photographer
Russel Ray - San Diego State University, CA

Hmmmmm. I just watched a movie last night where every sprinkler head in the house went off when the teenager held his cigarette lighter up to the one in his bedroom to get everyone out of the house so he could sneak his girlfriend out the back door. Now you're telling me they don't work like that? Hmmmmm. Who should I believe? You or Hollywood? Hmmmmm.

Feb 19, 2009 10:55 AM
Jay Markanich
Jay Markanich Real Estate Inspections, LLC - Bristow, VA
Home Inspector - servicing all Northern Virginia

A sprinkling of great info!  Have you ever gone into the Sprinkler Room on the edge of a condo building and seen the size of the service pipes?  Wowsers!  And people don't realize how much more pressure is there than in their general water supply...  perhaps the point of the next post.

Sprinklers are required here in all multi-level units or buildings.  Probably where you are too.

Feb 19, 2009 08:03 PM
Jack Gilleland
Home Inspection and Investor Services, Clayton - Clayton, OH

Wow Jay, I'm glad you like it, but one post is sufficient.

Feb 20, 2009 04:28 AM
Jay Markanich
Jay Markanich Real Estate Inspections, LLC - Bristow, VA
Home Inspector - servicing all Northern Virginia

Sorry Jack.  Got rid of them.  This morning the system kept freezing as I posted comments.  Now I have to wonder on how many other posts I dropped a few extra lines!

Feb 20, 2009 11:22 AM
Justin Ukaoma
Vizion KC - Kansas City, MO
Kansas City Real Estate Investments

Very eye opening post.  I always thought that if one head comes on they all come on.  Now that I think about it that does seem a little silly.

Feb 22, 2009 02:36 PM
Jack Gilleland
Home Inspection and Investor Services, Clayton - Clayton, OH

Jay, no problem.  Happens to me on ARall the time.

Justin, Thanks, considering what you guys do, it might be an offering for you. I'm really considering it.

Feb 23, 2009 05:23 AM