September 24, 2005
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When Rich Fairbanks decided to build a house on rural Sterling Creek Road, his fire-prevention measures didn’t stop at clearing brush from the site. Mail Tribune / Roy
Musitelli
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Safer in the sticks: fire-permeable home construction
By JOHN DARLING
for the Mail Tribune
When Rich Fairbanks built a remote home on Sterling Creek Road two years ago, he had fire on his mind. Live in the sticks, the retired forester and firefighter knew, and the trees around you some
day are likely to burn.
But Fairbanks decided then that fire didnt have to burn his house as well. He built the two-story structure to present a smooth face to an approaching inferno, using the least amount
possible of wood and other flammable material and minimizing sills, decks and eaves. Fairbanks calls the approach "fire-permeable" building. Fire may permeate the area, his theory goes,
but because theres no fuel near the house and its surfaces are flat and fire-resistant, it leaves the house itself alone.
"If the homes are more fire permeable," Fairbanks says, "then we dont need to pump (fire) crews in where they shouldnt be."
Its a logical approach, says Brett Fillis, chief of Fire District 9, which covers the Applegate, although he noted that a rural home in the trees never will be entirely safe from fire.
"As long as youve done your fuel treatment around the house and have your eave vents screened, youre in pretty good shape and you wont get radiant heat building up under
overhangs," he says. "But you have to temper that with the understanding that youve increased the likelihood of your homes survival up to the 95th percentile. There will
always be factors weather plays a great role that despite all youve done, you can still lose your house.
"You can never guarantee 100 percent safety from fire."
Fairbanks has reason to know something about the subject. Before retirement, he worked for three decades for the U.S. Forest Service, including as leader of a team working on a recovery project
on the 500,000-acre Biscuit fire in 2002. He recently launched a business as consultant on backwoods fire safety.
On any forest home, he says, the first line of defense is the roof, where sparks inevitably land during a fire. Using a shake or wood-shingle roof, he says, is "asking for it."
Better are metal, tile or synthetic roofs that have earned a class A rating from Underwriters Laboratory Inc. Fire-resistant roofs are mandatory on new construction and reroofing jobs that affect
more than 50 percent of a structure, notes Fillis.
Fairbanks house has a handsome copper roof, whose slick surface sheds leaves, needles and forest debris that can harbor sparks long after a fire has passed.
Eaves, he adds, should be metal and must be cleaned of tinder-like debris often a spawning bed for fire that takes the whole house.
Although overhangs keep a house cooler and save on summer energy bills, Fairbanks recommends avoiding them as they allow extreme heat to collect underneath and present an easy edge for fire to
catch on.
His own house, however, does have overhangs.
"I didnt have the strength to argue with the architect and my wife on the overhangs," he says, "but I do have a high-pressure pump on my well and a great firehose I got off
eBay that connects right to it."
House vents, says Fairbanks, should be screened with the tightest mesh eighth-inch is what he uses to keep "ember wash" from flowing in under roofs, finding tinder in the
shavings most builders leave behind.
Windows should be double pane, which fails far less often than single pane in fires, says Fairbanks. This is critical because, "once your windows go, the embers are in there on your sofa,
and your house is gone."
Deny fire toeholds by smoothing facades, eliminating sills and trim that would look nice on an urban house but only create problems in the woods.
People love decks and shady pergolas, but they only invite fire. If you must have them, suggests Fairbanks, make them of stone and blocks. If you must have wood, use larger stock, which takes
longer to burn.
Fillis says rural homeowners seem more knowledgeable about fire safety than they once did. A survey of dwellings in his area last year showed 87 percent had cleared the land around their homes.
This year, that had risen to 93 percent.
"When these fires burn, we do triage and put efforts into what we can save without danger to us," says Fillis. "If its not safe, were going to pull crews out of there
and those homes are going to have to survive on their own or not at all. We see a lot less unsafe homes now. People are on the bandwagon."
Applegate homeowner Matt Epstein counts himself among that group. After clearing vegetation around his log cabin, he focused on the house itself, replacing a shake roof with Class A composition
shingle.
The moment of clarity came for Epstein during the 2002 Squires fire, when three engines stood guard in his driveway.
"Their first question was: What kind of roof do you have?"
The new roof was no small investment but "it created a house that would be safe for 35 years in an area of frequent fires," says Epstein. Along with it came a regimen of cleaning
gutters of flammable detritus several times a year.
Overhanging limbs were cut back, an under-porch area was screened, the woodpile was moved 150 yards away from his home, the chimney was capped with a screen and growth beside the driveway was cut
back 25 feet so fire crews would know they could turn around.
Materials can make all the difference
To build a home to resist fire, keep materials in mind, suggests Rich Fairbanks. His recommendations include:
On the roof Use metal, tile or a synthetic material that has earned a Class A rating from Underwriters Laboratory Inc. (www.ul.com). Use metal eaves, and clean them of debris
regularly. Underneath, use fiberglass paper and plywood sheeting instead of oriented-strand board. Keep overhangs small. Screen house vents with the tightest-mesh screen possible.
For siding Instead of wood, consider stucco, which doesnt crack under extreme heat or conduct heat, or fiber-cement compounds. Limit sills and trim and smooth the facade where
possible.
For windows Make sure theyre double-paned.
Outside the main house Make decks and pergolas of stone or block instead of wood. For fences, use hog wire. Keep storage areas under decks free of weeds and grass, and dont use
them for storage.
John Darling is a free-lance writer living in Ashland.E-mail him at jdarling@jeffnet.org.