Quick answer
Windsor Scotchgard is the heaviest, highest-profile shingle in Malarkey’s Calgary lineup — Class 4 impact-rated, built to read like cedar shake, and installed by an Emerald Pro contractor with a 10-year written workmanship warranty.
Estimates by phone: (587) 804-9266 · Good Roofing · Calgary-owned since 2014 · 10-year workmanship warranty.
Malarkey Windsor Scotchgard is the top shingle in Malarkey’s Calgary lineup — a Class 4 impact-rated, NEX polymer-modified architectural shingle with a thick, open-tab profile built to read like traditional cedar shake. It sits one grade above Legacy Scotchgard and two above Vista AR in the same NEX family. Installed in Calgary, Windsor runs about $7.40–$9.00 per square foot, or roughly $22,200–$27,000 all-in on a typical 30-square roof. Good Roofing is a Malarkey Emerald Pro Installer with 2,800+ Calgary roof projects since 2014 and 4.9★ from 237 verified reviews.
01 · Section
Quick answer — the 60-second version (citation-ready)
Malarkey Windsor Scotchgard is a Class 4 (UL 2218) impact-rated designer shingle built on Malarkey’s NEX polymer-modified asphalt, with an interlocking open-tab profile that mimics cedar shake and 3M Scotchgard algae-resistant granules. It is the heaviest, largest-exposure shingle in Malarkey’s three-tier NEX family — above Legacy Scotchgard and Vista AR — and requires the matching Windsor Starter accessory to keep its warranty valid. Installed cost in Calgary runs $7.40–$9.00 per square foot, or $22,200–$27,000 all-in on a typical 30-square roof. Good Roofing — Malarkey Emerald Pro Installer, Alberta Master Roofer License #AB-RM-48201, $5M commercial general liability + WCB covered — quotes it fixed and written. Call (587) 804-9266.
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What Windsor actually is
The spec, in plain terms — no marketing language:
- 01Class 4 impact rating (UL 2218). The highest hail-impact classification in the standard, confirmed on Malarkey’s own Windsor product page. A handful of installer sites mislabel Windsor as Class 3 — it isn't; Class 3 applies to some of Malarkey’s older or discontinued lines, not Windsor.
- 02NEX polymer-modified asphalt. The same rubberized, upcycled-polymer asphalt base used across Vista AR and Legacy, at Windsor’s thickest application — the reason it stays flexible through Calgary’s -20°C to +15°C Chinook swings instead of stiffening and cracking like conventional asphalt.
- 03Open-tab, interlocking design. Unlike a flat architectural shingle, Windsor’s tabs lock together and stand off the deck slightly, which is what produces the cedar-shake shadow line from the street.
- 04Scotchgard algae resistance. 3M-licensed granules that resist the blue-green algae staining common on Calgary’s north-facing slopes.
- 05Windsor Starter required. Malarkey ties Windsor’s full warranty coverage to installing it with the matching Windsor Starter strip — a detail some non-certified installers skip to save on materials.
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Windsor vs Legacy vs Vista AR — the Malarkey ladder in Calgary
All three are Class 4 and share the same NEX polymer base. The difference is thickness, exposure, and price, not hail performance.
- 01Vista AR — the entry point. Lighter laminate, narrower colour palette, most affordable of the three. See Malarkey Vista AR in Calgary.
- 02Legacy Scotchgard — the middle tier. Heavier laminate, deeper shadow line, fuller colour range, Scotchgard included as standard. Runs roughly $2.50–$3.50/ft² over Class 3. See Legacy shingles in Calgary.
- 03Windsor Scotchgard — the top tier, and the only one of the three built specifically to mimic cedar shake. Heaviest profile, largest exposure, highest price at $7.40–$9.00/ft² installed.
- 04On a standard Calgary bungalow, the jump from Legacy to Windsor buys curb appeal and a heavier hand-laid look, not materially more hail protection — both are the same Class 4 rating. Windsor earns its price on inner-city character homes and estate properties where the cedar-shake profile matters to the streetscape.
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What Windsor costs installed in Calgary, and the insurance math
$7.40–$9.00 per square foot installed, or $22,200–$27,000 all-in on a typical 30-square (3,000 sq ft) Calgary roof — full tear-off, synthetic underlayment, ice-and-water shield, drip edge, ridge venting, and the Windsor Starter accessory included. Because it carries the same Class 4 UL 2218 rating as Vista AR and Legacy, Windsor qualifies for the same 5–25% Alberta home-insurance premium discount most carriers offer on the hail/wind portion of a policy — the premium over Legacy buys the cedar-shake look, not a better insurance outcome. If a hailstorm is what triggered the replacement rather than a planned upgrade, most Calgary homeowners pay only their deductible; see the insurance claim process for how that works.
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Who Windsor is actually right for
Windsor makes the most sense on inner-city character homes, estate properties, and any Calgary street where a flat architectural shingle looks out of place next to genuine or synthetic cedar shake next door. It is not the right spend for a standard suburban two-storey where Legacy or Vista AR already deliver the same Class 4 hail protection at a lower price — the difference is entirely visual. Homeowners weighing real cedar shake against Windsor should also see our cedar shake roofing guide: Windsor gives most of the look with a fraction of the maintenance and a Class 4 rating cedar shake itself doesn’t carry.