Coastal Exterior Siding Systems ENGINEERED FOR THE COAST.
Engineered specifically for Cape Cod HZ5 climate zones. Our siding solutions resist salt air, high humidity, freezing winter nor'easters, and 100+ mph wind gusts.
STOCKED BRANDS IN COASTAL EXTERIOR SIDING SYSTEMS
IN-STOCK MATERIAL LINES
Field-tested exterior materials stocked locally in West Yarmouth for direct Cape Cod job-site delivery.
LES BARDEAUX LAJOIE CLASS A – EXTRA EASTERN WHITE CEDAR SHINGLES
- Premium Class A – Extra Knot-Free Grade: Very light color, high quality, and a 100% knot-free exposed surface for luxury exterior siding and roofing
- Natural Rot & Insect Defense: Eastern White Cedar is naturally resistant to decay, wood-destroying insects, and harsh coastal weather exposure
Premium Canadian Eastern White Cedar shingles manufactured by Les Bardeaux Lajoie. Class A – Extra shingles feature a very light color, high quality, and a knot-free exposed surface, making them an excellent choice for premium exterior siding and roofing applications. The natural cedar gradually develops a classic silver-gray appearance as it weathers.
ZIP SYSTEM 5/8" STRUCTURAL ROOF & WALL SHEATHING
- Structural 1 High-Load Sheathing: Structural 1 engineered wood panel designed for demanding exterior roof and wall assemblies under heavy wind and snow loads
- Factory-Integrated Water & Air Barrier: Incorporates a factory-applied vapor-permeable water-resistive barrier and continuous rigid air barrier layer
5/8" ZIP System® structural sheathing designed for exterior roof and wall assemblies. The engineered wood panel incorporates a factory-applied, vapor-permeable water-resistive barrier and continuous air-barrier layer, helping streamline building-envelope installation when seams are properly sealed with ZIP System™ flashing tape or approved liquid flashing.
Grip-Rite PrimeGuard MAX #304 Stainless 15° Siding Nails
- #304 Grade Stainless Steel prevents black tannin bleeding on White & Red Cedar shingles
- Lifetime Guarantee against rust, streaks, and sea salt corrosion on exterior siding
Pro-grade #304 stainless steel 15° wire weld coil ring shank nails engineered with lifetime guarantee against cedar streaking, tannic staining, and coastal salt corrosion.
Bostitch ThickCoat 2-1/2" x .090" 15° HDG Siding Nails
- ThickCoat extra heavy hot-dipped galvanized coating certified under ASTM A153 Class D & ESR-1533
- Approved for use in Pressure-Treated Lumber without chemical corrosion breakdown
Pro-grade ASTM A153 Class D ThickCoat hot-dipped galvanized 15° coil siding nails engineered for pressure-treated wood framing & James Hardie lap siding.
BEAR SKIN Joint Flashing Sheets for Lap Board Siding Joints (50 Sheets Pack)
- Pre-Cut 50-Sheet Pack — speeds up siding installation without needing hand cutting of flashing rolls
- Eliminates Butt Joint Caulk — provides permanent hidden weather barrier behind siding seam gaps
BEAR SKIN Joint Flashing Sheets (50 count package). Made in the USA, these flexible pre-cut joint flashing sheets are installed directly behind butt joints on lap board siding (Cedar, James Hardie fiber cement, Vinyl, and PVC). Protects sheathing against wind-driven rain penetration at board seam joints without requiring messy caulk.
Grip-Rite PrimeGuard MAX #316 Grade Stainless Steel Siding Nails
- #316 Marine Grade Stainless Steel — lifetime guarantee against rust streaks and salt air corrosion
- Ring Shank thread design locks firmly into wood framing without loosening or popping
Grip-Rite PrimeGuard MAX 316 marine grade stainless steel 4d (1-1/2") Split-Proof siding nails. Featuring ring shanks for maximum holding power and blunt diamond points to prevent splitting delicate cedar shingles and wood siding in coastal environments.
NEED A CUSTOM Coastal ORDER FOR YOUR JOBSITE?
Send us your plans or material list. Our Cape Cod specialists will provide exact takeoff calculations within hours.
Why Material Selection Matters for Cape Cod Siding
Standard mainland siding fails quickly when exposed to Cape Cod’s extreme salt atmosphere and wind-driven moisture. Barn 33 supplies only climate-validated systems.
Moisture Barrier Performance
Salt air carries micro-droplets of ocean water deep into lap seams. Our HardiePlank and cedar systems prevent sub-layer saturation.
Extreme Wind Uplift Resistance
Cape Cod winter nor'easters routinely produce wind gusts over 60 mph. All our siding profiles feature heavy-duty nailing hems and certified wind ratings.
Zero-Maintenance PVC & Fiber Cement
Save your clients thousands in repainting costs with factory-finished fiber cement and vinyl formulations that never peel.