Guides
Roofing advice for the Lower Mainland
Costs, permits, roof types, leaks and moss, written for the way roofs age in our climate. Each guide is checked against BC sources and dated.
Metal roof vs asphalt shingles in BC: cost, lifespan and which to choose
Metal costs two to three times more than shingles up front in the Lower Mainland but lasts twice as long. The numbers, break-even, noise, moss, fire and resale.
Read →Metal roof cost in BC (2026): standing seam, metal shingles and panels
Metal roof prices in Metro Vancouver and the Fraser Valley: $13 to $22 per sq ft for standing seam steel, $12 to $22 for metal shingles, $8 to $14 for panels.
Read →The best asphalt shingles for BC's wet coast: IKO, GAF, Owens Corning, CertainTeed, Malarkey and BP compared
Which shingle brand and grade suits the Lower Mainland: architectural vs three-tab, class 4, algae resistance, what lifetime warranties cover, what to avoid.
Read →Roof pitch explained: how to measure it, what 4:12 means and why it changes your quote
Roof pitch in ratios and degrees, how to measure it, the minimum slopes the BC Building Code allows for each material, and how pitch changes area and price.
Read →Roofing materials compared for the Lower Mainland: the four common roof types and when each makes sense
Asphalt shingles, metal, cedar and flat membranes compared for BC's wet coast: installed cost, lifespan, upkeep, fire rating, weight and resale, in one table.
Read →How long does a roof last in BC, and how do you know when to replace it?
Typical roof lifespans in the Lower Mainland by material, the signs a roof is finished, when a repair makes sense instead, and how to plan the replacement year.
Read →Replacing a cedar shake roof in BC: your options, costs and what to know
Untreated cedar roofs often fail around 20 years on the wet coast. Your options: treated cedar, shingles, synthetic shakes or metal, with costs.
Read →Moss on your roof: how to remove it, what it costs and how to keep it off a Lower Mainland roof
Why moss grows on BC roofs, why pressure washing is a mistake, what roof cleaning costs ($350 to $900), zinc strips, registered treatments and prevention.
Read →Are gutter guards worth it in BC? Types, costs and what works under cedars
Screen, mesh and micro-mesh gutter guards compared for the Lower Mainland: $4 to $28 per foot, what still clogs with needles, and whether they beat cleaning.
Read →Gutter cleaning cost in BC and how often you should do it
Gutter cleaning costs about $150 to $400 for a typical Lower Mainland house, more under heavy trees. When to clean, what clogged gutters do, DIY vs hiring.
Read →Roof repair cost in BC: leaks, flashing, boots, valleys and when to stop repairing
Roof repair prices in the Lower Mainland: small repairs $300 to $600, leaks $400 to $1,500, chimney flashing $400 to $1,800, valleys $600 to $2,500.
Read →Roof leaking? What to do tonight, where leaks come from and when it's an emergency
A step-by-step for a leaking roof in a BC storm: stop the damage, document for insurance, find the source (flashing, boots, valleys), then repair or replace.
Read →Roof and attic ventilation in BC: ridge vents vs roof vents vs soffit vents, and what the code requires
The BC Building Code asks for 1 sq ft of vent per 300 sq ft of ceiling, split intake and exhaust. Ridge, box and soffit vents compared, why attics sweat, costs.
Read →Drip edge, soffit and fascia explained: the parts of the roof edge and why they fail here
What a drip edge does, why most older BC roofs don't have one, how soffits feed the attic, why fascia rots under overflowing gutters, and what repairs cost.
Read →Torch-on vs TPO vs EPDM: choosing a flat roof membrane in BC
Two-ply torch-on SBS, TPO and EPDM compared for Lower Mainland flat roofs: cost per sq ft, lifespan, seams, drainage and which suits houses, strata and shops.
Read →Snow guards and ice dams in the Lower Mainland: what metal roofs and north-facing eaves need
Why metal roofs shed snow all at once, where snow guards go, what causes ice dams on BC eaves, and why roofers install eave membrane the code doesn't require.
Read →Do you need a permit to replace your roof in BC? Municipality by municipality
No province-wide rule. Which Lower Mainland cities say re-roofing needs no permit, which don't say, what always needs one (structure, dormers, solar).
Read →Will insurance cover a 20-year-old roof? Roof age, claims and what BC insurers ask
How Canadian insurers treat roof age: replacement cost vs actual cash value, the 15 and 20 year thresholds, storm claims, wear and tear, documenting a claim.
Read →Can you roof over existing shingles? Layovers and metal over shingles in BC
A second layer of shingles or metal over shingles saves the tear-off but hides the deck. What roofers, manufacturers and cities say, and when it's acceptable.
Read →The best time of year to replace a roof in BC, and whether roofers work in the rain
When roofers are busiest in the Lower Mainland, whether winter re-roofs are cheaper, how shingles seal in cold, what rain does to a job and when to book.
Read →How to choose a roofer in BC: licences, WorkSafeBC, insurance, warranties and red flags
Roofing isn't a licensed trade in BC, so the checks are on you: business licence, WorkSafeBC clearance letter, insurance, RCABC, warranties and deposit rules.
Read →Roofing and solar in BC: do the roof first, solar-ready details and panels on metal
Why an older roof should be replaced before solar goes on, what solar-ready means, how panels mount on shingles and standing seam, and where permits apply.
Read →How to compare roofing quotes line by line
Why three quotes for the same roof differ by thousands, the 12 lines every roofing quote should have, the questions to ask, and how to spot an incomplete quote.
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