Mastic Structure® EPS insulated siding adds a continuous blanket of insulation to the outside of your home. Mastic siding improves energy efficiency, reduces outside noise, and makes your home more comfortable year-round.


300% More Impact Resistance and 200% More Rigid than Standard Vinyl Siding - Advanced engineering and design systems deliver superior strength and rigidity for a longer product life cycle. In actual testing, a Mastic siding panel withstood hammer blows that damaged lesser siding products.

Patented T3-LOK™
Uniquely designed lock tightens under pressure, so Mastic siding stays put even through the most challenging weather.

Longer Lengths Available - Up to 16'8"
Virtually no seams - for a cleaner, straighter, more professional look. Ideal for larger homes and light commercial applications.

Wind speed-rated up to 190 MPH
Mastic's proprietary design and engineering delivers a panel that achieves superior wind resistance.

Premium Ventura Hidden Vent® offers the utmost curb appeal without compromising the functional features you need. It gives your home a finished look with premium vinyl siding sculpted in a smooth, clean profile. And according to recent tests, it delivers up to 50 percent more ventilation space than other leading hidden vent panels.