Page 33 - Green Builder's Resilient Housing Design Guide 2019

extremegreen Wallboard

HIS INNOVATIVE WALLBOARD defies easy
categorization. It’s made with magnesium oxide with no
organic fillers or resins, and comes in quarter-inch, half-
inch and 5/8-inch thicknesses. The company also sells tile
T backer and other products of the same material.
We talked with extremegreen CEO Sam Catling at Greenbuild. He
says the product is currently imported from China. GB: “Do you have
plans to open a U.S. manufacturing plant?” Catling: “No comment.”
We’re hoping that means we’ll one day see U.S.-made versions of
this product, which has a Class A1 fire rating, with zero flame spread
and zero smoke developed rating.
After a flooding event, Catling says the product can just be washed
off with a mild bleach solution and will continue to perform. Perhaps
the best feature, however, is that the wallboard can be used in place
of interior drywall. Seams would still need to be taped, of course,
and this might require some clever product choices to keep up with
the wall’s strong performance in the face of mold, water and fire.
Another perk is that fixtures, art and other heavy objects can be
hung directly from this material, without blocking. The product is CREDIT: EXTREMEGREEN
more suited to nailing than screws when attaching to studs.

James Hardie

Fiber Cement

Siding

IDING IS A KEY component of a
home’s ability to survive Wildfires. It
also adds to the projectile resistance
of wood-framed homes in hurricane
S and tornado events.
James Hardie’s siding will not ignite or add
fuel to a fire. It complies with ASTM E136, as a
noncombustible cladding and is recognized by
fire departments across the U.S.
As an alternative to other claddings, such as
wood or vinyl, fiber cement offers superior fire
resistance. The Hardie product also has a flame
spread index of zero and a smoke developed
index of < 5, offering additional peace of mind
to homeowners.

RESILIENT PRODUCT SHOWCASE
continued on next page

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