DaVinci Multi-Width Shake solves the monotony problem that plagues most synthetic roofing. Five different widths (4”, 6”, 7”, 8”, and 9”) create genuine randomness across the roof. For Montana contractors dealing with Class 4 hail zones and increasing wildfire risk, this product delivers the highest impact rating available plus Class A fire protection when paired with proper underlayment.
The upfront cost runs higher than asphalt shingles. But 50+ years of service life versus 20-30 for natural cedar changes the math for homeowners who plan to stay put.
Multi-Width Design and Installation Requirements
The system uses five distinct widths: 4”, 6”, 7”, 8”, and 9” tiles, all measuring 22” in length. Each shake tapers from a 5/8” butt down to 1/4” at the tip, creating the shadow lines that sell the cedar look.
Installation demands precision: maintain a 3/8” gap between shakes for expansion, with vertical gaps offset by at least 1/4”. Standard exposure runs 9” or 10”, but high-wind areas require backing off to 9” maximum when using staggered coursing.
| Specification | Value |
|---|
| Widths available | 4”, 6”, 7”, 8”, 9” |
| Length | 22” |
| Thickness (butt/tip) | 5/8” / 1/4” |
| Standard exposure | 9” or 10” |
| Minimum roof pitch | 3:12 (4:12 preferred) |
| Gap between shakes | 3/8” |
The substrate needs substance: minimum 15/32” plywood or 7/16” OSB, smooth and flat. Fasteners matter: 1 1/4” copper, stainless steel, or hot-dipped galvanized nails, with ring-shank mandatory for OSB decking and high-wind zones.
The Class A fire rating requires specific fire-resistant underlayments like GAF VersaShield, without it, you’re down to Class C. Class 4 impact resistance (UL 2218) means it handles whatever Montana hail throws at it.
Wind resistance hits 110 mph certified (ASTM D3161): adequate for most Montana valleys but notably lower than competitor Brava’s 188-211 mph ratings. Weight runs approximately 300-400 lbs per square, significantly lighter than water-logged cedar.
The composite material resists freeze/thaw cycles and handles heavy snow loads when paired with proper snow guards. Virgin resins mixed with UV and thermal stabilizers plus specialized fire retardant create a product engineered for extremes.
| Performance Rating | Value |
|---|
| Fire rating | Class A (with proper underlayment) |
| Impact rating | Class 4 (highest) |
| Wind resistance | 110 mph certified |
| Weight per square | 300-400 lbs |
Long-Term Value Analysis
DaVinci backs the product with a Lifetime Limited Material Warranty. The first 10 years come with non-prorated coverage against manufacturing defects. Warranty transfers to new owners in many cases.
Maintenance drops to nearly zero compared to cedar’s frequent cleaning, treatment, and replacement cycles. The Class 4 impact rating opens the door for insurance premium reductions: a selling point that matters in Montana’s hail-prone regions.
Installation requires contractors experienced with synthetic roofing systems. Bundles contain 24 pieces of multi-width field shingles, with accessories including starter tiles, hip and ridge pieces, and transition flashing available separately.
Frequently Asked Questions
What makes the multi-width system better than single-width shakes?
Multiple widths and pre-sorted colors create a natural, non-repeating pattern that single-width products can’t match. The varied dimensions eliminate the uniform look that screams “synthetic” from the street.
How does DaVinci Multi-Width Shake handle Montana’s temperature swings?
The virgin resin formula includes thermal stabilizers specifically for temperature extremes. The material resists freeze/thaw cycles that destroy lesser products. The required 3/8” installation gaps allow for expansion and contraction without buckling.
What’s the real weight advantage over cedar?
At 300-400 pounds per square, it weighs significantly less than natural cedar when wet. The lighter weight makes transport and installation easier: crews move faster and safer on steep pitches.
Can this product work on lower-pitch roofs?
Technically it installs on 3:12 pitch, but 4:12 or greater is preferred. Lower pitches increase the risk of wind-driven rain infiltration, especially in Montana’s horizontal rain events.
What specialized tools does installation require?
Basic requirements include a circular saw with carbide-tooth blade, utility knife, pneumatic nail gun or hammer, and non-red chalk line. Nothing exotic, which is standard roofing tools handle the job.
