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Structure® EPS Insulated Siding
Structure is a premium insulated siding bonded with expanded polystyrene (EPS) foam. It delivers superior strength, style and performance in a wide-style clapboard look.

- Wind speed — rated up to 190 mph
- Patented t3-lok™
- Tornado-tough, double-thick, fold-over nail hem (d 4”, d 4-1/2” dlap)
- 5.0 Permeability rating
- Backed by up to 1-1/4” of real insulation — adds up to r4 to a home’s Wall system
- Enhanced 3/4” panel projection
- 300% More impact resistant and 200% more rigid than standard Vinyl siding
- Duranyl 5000® protection system
- Mastic hang-tough™ technology
- Class 1(a) fire rating

Colors






No paint. No stain. No hassles. Structure® EPS Insulated Siding is bonded to one of the thickest
insulations available. Up to 1-1/4" of real insulation increases the wall system’s R-value to R4 —
which increases performance up to 25%. And can reduce noise levels by as much as 30%.
Structure EPS Insulated Siding delivers superior strength, beauty, style and performance.

One of the thickest insulations in the industry.
When it comes to insulation, thicker is better. Wrap
your home in one of the thickest insulated siding
products in the industry today. With Structure® EPS
Insulated Siding, you’ll add to your home’s resistance
to heat lost by R4. That’s an average increase of
25% in your home’s insulation. At the same time,
you’ll reduce the noise level by as much as 30%
from outside sources. The result is lower energy
costs throughout the year and a much quieter,
more comfortable home environment.
Structure® EPS Insulated Siding delivers.
- DURABILITY. If you’re looking for siding that is durable and low maintenance,
and looks beautiful, Structure EPS Insulated Siding is the ideal choice. With
Mastic’s exclusive Hang-Tough™ Technology, Structure EPS Insulated Siding will
enhance your home’s appearance today — and for years to come.
- NO PAINT, NO STAIN, NO HASSLES. Structure EPS Insulated Siding, a premium

panel, never needs paint or stain. Unlike real wood siding, it won’t crack, peel,
flake or rot. Revolutionary technology like our Duranyl 5000® Protection System
maximizes the panel’s weatherability and delivers additional protection — and
peace of mind — for your investment.
- COLOR AND TEXTURE. Featuring a realistic cedar grain, Structure EPS Insulated
Siding is available in a virtually endless palette of colors — 21 base colors and
more than 700 DreamColor® hues.
- PEACE OF MIND THAT LASTS A LIFETIME. Structure EPS Insulated Siding is
backed by the Mastic V.I.P. Limited Lifetime Warranty — a real warranty backed
by a solid company. Mastic has been a trusted industry leader for more than 50
years. Please see our warranty for complete details.
Today's consumers believe wholeheartedly in the old adage, "You get what you pay for." They're interested in product performance, low maintenance, workmanship and warranties. Exterior beauty is important to them, because they know that first impressions count.
- Vinyl siding's share of the market has approximately doubled in the last decade.
- While vinyl siding has risen in popularity over the years, traditional wood materials are on a marked downswing.
- Vinyl siding is the most preferred material overall in both new construction and remodeling. In addition, vinyl siding has become increasingly popular in use in all home segments, from starter homes to luxury homes.

