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Ply Gem / Siding / Mastic Structure
Siding Insulated Vinyl Siding

Ply Gem Mastic Structure

Mastic Structure Home Insulation System vinyl siding with high-performance foam backing that provides up to 300% more impact resistance than standard vinyl and wind rating up to 170 mph. T3-LOK triple-thick locking system and Hang-Tough Technology deliver a tighter, more secure installation across multiple profiles. 1.25-inch premium thickness with 20+ color options.

Material

vinyl

Foam Backed

Yes

Thickness In

1.25"

Wind Rating Mph

170

Lock System

T3-LOK

Profiles

D4 Clapboard, D4.5 Dutch Lap, D6 Clapboard, Single 7

Model Comparison

10 models
Mastic Structure
Specification White Almond Beige Clay Gray Pebblestone Clay Desert Sand Wicker English Wedgewood Everest
Model mastic-structure-insulated-whitemastic-structure-insulated-almondmastic-structure-insulated-beigemastic-structure-insulated-claymastic-structure-insulated-graymastic-structure-insulated-pebblestone-claymastic-structure-insulated-desert-sandmastic-structure-insulated-wickermastic-structure-insulated-english-wedgewoodmastic-structure-insulated-everest

Shared Specifications

All models
material vinyl
foam_backed Yes
thickness_in 1.25"
wind_rating_mph 170
lock_system T3-LOK
profiles D4 Clapboard, D4.5 Dutch Lap, D6 Clapboard, Single 7
fire_rating Class A
standards ASTM D-3679

Documentation