Calgary attic ventilation experts

Attic Ventilation Calgary — The Hidden Cause of Half Your Roof Problems

Most Calgary attics are under-vented. The symptoms — ice dams in January, curling shingles by year 12, mould on the underside of the deck — all trace back to bad airflow. A proper ventilation upgrade is one of the highest-ROI things you can do for your roof.

Call for an estimate · (587) 804-9266

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Quick answer

Most Calgary attics are under-vented. The symptoms — ice dams in January, curling shingles by year 12, mould on the underside of the deck — all trace back to bad airflow. A proper ventilation upgrade is one of the highest-ROI things you can do for your roof.

Estimates by phone: (587) 804-9266 · Good Roofing · Calgary-owned since 2014 · 10-year workmanship warranty.

Attic ventilation is the most misunderstood part of a roof system. The rule is simple: equal intake (soffit) and exhaust (ridge or vents), totalling 1 sq foot of net free area per 300 sq feet of attic floor. The vast majority of Calgary homes are under-vented, over-vented on the exhaust side only, or have intake blocked by insulation.

01 · Section

Signs of bad attic ventilation in Calgary

Any of these and your attic ventilation needs attention.
  • 01Ice dams forming at the eaves in January
  • 02Shingles curling or cupping before year 15
  • 03Visible mould on the underside of the roof deck
  • 04Frost on nail tips inside the attic in winter
  • 05Hot upstairs rooms in summer despite AC
  • 06Soffit vents blocked by insulation (no baffles installed)

FAQ

Attic Ventilation Calgary — The Hidden Cause of Half Your Roof Problems — questions Calgary homeowners ask

What Calgary says

4.9 from 237 verified reviews.

01

“Good Roofing met our State Farm adjuster on the roof, documented every strike, and we ended up with a full replacement covered. Crew finished in two days, yard was spotless.”
Sarah M. · Auburn Bay

02

“Got three quotes. Good Roofing wasn’t the cheapest but they were the only ones who actually went on the roof and put a fixed price in writing. No surprises.”
Dave K. · Tuscany

03

“Emergency leak the night of a Chinook windstorm. They had a tarp on the roof by 11pm. Did the permanent repair two days later for exactly the quoted price.”
Priya R. · Bridgeland

04

“I’m a 71-year-old widow and was terrified of being upsold. The project lead walked me through every line item and even fixed two soffit screws for free.”
Linda H. · Royal Oak

Get started

Pick up the phone. We’ll pick up ours.

Estimates are by phone. Most callbacks within an hour. We’ll book a free drone inspection if you need one and email a fixed-price quote within 24 hours.

(587) 804-9266

Mon–Sun, 7am–9pm · 24/7 emergency

Call (587) 804-9266