Vancouver Island · British Columbia · Made in Canada
Cowichan Bay metal roofing
6 Interlock® aluminum roofs installed in Cowichan Bay since 1999, by Interlock Metal Roofing (BC) Ltd. One system, made in Canada in Delta, with a fixed price in writing.
- Roofs in Cowichan Bay
- 6
- First Cowichan Bay roof
- 1999
- Since 2020
- 3
- Most chosen
- Slate
From our job book: completed, published jobs. 27 years of Cowichan Bay roofs.
Metal roofing in Cowichan Bay: what homeowners choose
Interlock® profiles on Cowichan Bay homes in our job book.
Slate
3 roofsMediterranean Tile
2 roofsCedar Shingle
1 roof
Most common colours in Cowichan Bay: Deep Charcoal, Mountain Blue, Hunter Green, Copper Penny.
Every Cowichan Bay roof on the map
Each pin is a completed Interlock® roof with its profile, colour and install year.
Cowichan Bay roofs we've installed

Copper Penny Slate · Cowichan Bay, BC · 3 photos
Roofing in Cowichan Bay: what to plan for
Rain from the west coast to the east
The Island ranges from very wet on the west side, around Port Alberni and Sproat Lake, to drier around Victoria, but most roofs here spend the winter damp under firs and cedars. Aluminum absorbs nothing and cannot rot. Needles still collect in valleys and gutters, and we'll tell you what to clear and how often.
Oceanfront without the rust
From Oak Bay and Sooke to Nanoose Bay and Comox, a lot of Island homes sit close to the water. Aluminum does not rust, so salt air doesn't do to it what it does to steel.
Comox Valley and upland snow
Some winters bring heavy, wet snow to the Comox Valley and the higher ground. A metal roof sheds it, so snow guards over entries, decks and driveways go in at the estimate, and the light panels leave the framing's capacity for the snow itself.
Homes in the trees
Plenty of Island homes back onto forest. Class A is available on our roofs as a complete assembly (two layers of GAF VersaShield® over 12 mm (15/32-inch) plywood, per ASTM E108), and aluminum does not ignite.
Cowichan Bay metal roofing questions
How many roofs has Interlock installed in Cowichan Bay?
6 completed Interlock® roofs in Cowichan Bay are recorded in our job book, the first in 1999 and 3 of them since 2020.
Which roof profile do Cowichan Bay homeowners choose most?
Slate. In Cowichan Bay the profiles on our books are Slate (3), Mediterranean Tile (2), Cedar Shingle (1). The most common colours are Deep Charcoal, Mountain Blue, Hunter Green.
Who installs Interlock roofs in Cowichan Bay?
Interlock Metal Roofing (BC) Ltd., a Canadian owned and operated BC company founded in 1983, from our office at 9969 River Way, Delta. The panels are made in Canada by Interlock Roofing at the same address.
How do I get a price for a roof in Cowichan Bay?
Book a free visit. We measure the roof, go through profiles and colours with you, and give you a fixed price in writing. Call (778) 745-2860 or use the quote form.
Hiring anyone for a Cowichan Bay roof? Six checks to make sure a roofer is really local to BC →
Your last Cowichan Bay roof, priced in writing.
Interlock Metal Roofing (BC) Ltd. · 9969 River Way, Delta, BC V4G 1M8