Calgary, AB Metal Roofing: Long-Term Protection After Asphalt Shingle Leaks, Hail Damage, and Costly Repairs

Calgary, AB

Wendy H.

We hope this letter will save someone experiencing some of the aggravation, expense, internal damages and headaches we have experienced using asphalt shingles.

Our home built in 1984, had its roof finished with asphalt shingles. Within ten years we started to experience leaking around flashings resulting in a rosewood chest having to be refinished and stippled ceilings in several areas of our home having to be repainted. By 1995 we reluctantly gave in to the realization our roof needed replacing and started shopping for a new roof. In May 1996 we re-roofed our 11-year-old home using IKO’s “Aristocrat” asphalt shingles which were rated at 25 years (cost $3321.28). Unfortunately, when the roofing contractor ordered the shingles they did not order enough, and the finished roof ended up with a distinctly different colored patch at the front of our very long roof which extends from the peak of our house to the front of the garage. At the time I was assured a year of sun bleaching should rectify the color variation, but if it didn’t, I was to call them to arrange to have it rectified.

One year later our “new” roof still looked “patched,” and a call was made to the roofing company who arranged a meeting with a senior representative of IKO, the president of the roofing company and myself. Following that meeting, I received a letter from IKO telling me the guarantee did not cover “colour.” The IKO letter Included an offer of approximately $500.00 so that I could deal with MY problem on my one-year-old, Aristocrat (26 years) shingle roof. Upon receipt of that letter, I contacted the roofing contractor, told them about the letter and informed them they would not be hearing from me again but would hear from a lawyer on my behalf. Boy, did that get things happening! Fortunately for us, the roofing contractor stood by us, and the “colour” matter was satisfactorily resolved by November 1997. Unfortunately, we experienced significant interior leaking in December 1997 following a very wet heavy snow. The leaking was so bad it was “raining” from the light in our front entrance, and our front door froze shut! The result to us was more inconvenience, more damage, more shabby cosmetic repairs by a fellow provided by the roofing contractor but at last, it looked like our roofing problems were behind us.

In July of 1998, Northwest Calgary was hit by a severe hailstorm. My husband’s worse fear was the storm would have knocked 15 of the 25 years off the life our “new roof.” That storm obliterated our roof, and the insurance adjuster’s first comment was that the roof would need replacing. During the summer and fall of 1998, it was almost impossible to get a roof installed, and we seriously questioned the quality of work that we saw around us.

February of 1999 arrived with us still in need of a new roof, so we went roof shopping at The Home and Garden Show where we met Ted Rector of Interlock Metal Roofing (Alberta) Ltd. Several of Interlock’s competitors couldn’t even be bothered to take the time to talk to us. Those that did speak to us were selling asphalt (paper or fibreglass) shingles. Within a week Ted came to our home, and we had arranged to get a roof to solve our problems finally.

Our new roof tile in charcoal gray is now on our home. We love the look! The installers were a super group of very considerate fellows. Clean-up by Interlock’s installers was very thorough. I wish all of our roofing experiences could have been as pleasant as our dealings thus far with Interlock and its representatives!

Calgary, AB

Roofing Promotions in Calgary, AB.

Spring Home Protection Event

Enjoy Interest-Free Payments for 3 Months*

Save at least 99 off Interlock roofing promotion badge for winter savings event in Calgary, AB.
Book Your Roof Project this Spring & Enjoy Interest-Free Payments for 3 Months + Save at least $2499 on the last roof you will ever need.
*Cannot be combined with any other promotional offers or discounts. Offer valid for this promotion only. Discount cannot be applied to previous purchases. Price discounts depend on the size and location of your home. Minimum 12 Sq. purchase required for discount offered. Must purchase an Interlock Lifetime Roofing System to qualify. Available only at time of purchase. Offer not valid if contract is canceled. Offer does not apply to contract amendments. Offer expires March 31, 2026. Offer only available in Alberta, Canada.

Local Interlock Metal Roofing Company Near Calgary

Interlock Metal Roofing (Alberta) Ltd.

210, 3750 46 Ave SE Calgary, AB T2B 0L1 Canada
(587) 317-6517
Interlock Metal Roofing (Alberta) Ltd. has proudly served homeowners across Southern Alberta since 1999, providing durable and energy-efficient aluminum roofing systems designed for the Prairies’ wide range of weather conditions. From Red Deer to Calgary, Lethbridge, and Medicine Hat, our roofs are engineered to withstand hail, wind, and snow—while enhancing the look and long-term value of your home. As part of one of Canada’s leading metal roofing installers, we’re committed to sustainable craftsmanship, professional installation, and a lifetime of protection backed by an industry-leading warranty.

Top 10 Metal Roofing FAQs for Homeowners in Calgary

Homeowners researching metal roofing in Calgary often have several important questions before replacing their roof. Many people want to understand how metal roofing compares to traditional materials like asphalt shingles in terms of lifespan, durability, cost, and long-term value. Roofing decisions can also be influenced by local weather conditions. Homes in Calgary may experience environmental factors such as rain, wind, snow, heat, fire, or seasonal storms that can impact roof performance over time. The following frequently asked questions help explain what homeowners should know when evaluating metal roofing and why many people choose durable roofing systems designed for long-term protection.

Metal roofs in Calgary commonly last 40–70+ years, while asphalt shingles typically last much less (often ~15–25 years depending on quality and exposure). Calgary’s continental climate brings cold, snowy winters, warm summers and strong temperature swings (Chinook events), affecting thermal expansion and contraction of roof materials. The city also faces frequent hail and high-wind events that can dent or abrade roof surfaces, and substantial snow loads in winter that demand robust roof attachment and drainage. Regular freeze–thaw cycling can accelerate wear, especially on sealants and fasteners, shortening lower-grade roof lifespans. For these reasons homeowners in Calgary often choose durable systems—metal roofing resists hail, sheds snow, and copes with freeze–thaw better. Interlock Metal Roofing systems use heavy-gauge aluminium and a lifetime limited 50-year transferable warranty designed for long-term protection.
Metal roofs in Calgary typically cost more up front than asphalt shingles, but many homeowners weigh lifetime value rather than initial price. Final cost depends on roof size, slope and complexity, tear‑off, flashing, skylights, and labour. Calgary’s frequent freeze–thaw cycles and summer hailstorms increase material stress and can influence choice of profile and fastening—factors that affect price. Durable metal roofing systems typically reduce future repair and replacement costs through longer service life and better resistance to hail and freeze–thaw damage. Local building requirements, contractor availability and site complexity also influence overall cost. Interlock Metal Roofing emphasises long‑term ownership value and durability rather than competing as a low‑cost roofing option.
Metal vs asphalt in Calgary: metal roofs typically last decades (often 40+ years) while asphalt shingles usually last 15–25 years. Metal requires less routine upkeep — occasional inspections after hail or heavy Chinook winds — whereas shingles need more frequent repairs and earlier replacement. Metal is more durable against large hail, high winds and freeze–thaw cycling; asphalt can crack, lose granules and age faster under those stresses.Calgarian roofs face frequent hail and strong wind events, and rapid temperature swings that cause freeze–thaw damage — factors that favour more impact‑resistant materials. Long‑term value: metal’s higher upfront cost often pays off via longer life and lower replacement frequency, but asphalt can be economical short‑term. Homeowners who prioritise durability and long‑term protection often choose metal. Interlock Metal Roofing appeals for its long‑term performance, weather‑resistant interlocking design and strong architectural curb appeal.
Many people believe metal roofs are noisy in rain, but that’s a common myth. Modern residential metal roofs installed over solid decking do not sound like barn roofs. When installed as a complete system, metal panels sit on sheathing and are paired with underlayment, insulation, and attic space — all of which dampen rainfall noise. The roof assembly and installation quality (fastening, flashings, ventilation) affect perceived sound; poor installation or panels over open framing can be louder. Properly installed residential metal roofs are typically similar in sound to asphalt shingle or tile roofs. Interlock Metal Roofing systems are installed as complete roofing systems designed for residential homes.
In Calgary’s climate, a metal roof can be energy efficient because its reflective surfaces help reduce solar heat gain in summer. However, overall energy performance depends on the complete roof assembly — underlayment, insulation levels and proper attic ventilation all affect heat transfer and moisture control. In cold Alberta winters, thermal retention and air-sealing are equally important, so the net benefit varies with orientation, roof colour and ventilation strategy. Homeowners replacing roofs often prioritise energy efficiency to lower heating and cooling costs, improve comfort and increase home resale value while reducing greenhouse gas emissions. Interlock Metal Roofing systems are engineered to work with appropriate insulation and ventilation practices and are designed to support long‑term home performance.
Calgary’s roofs face frequent severe hail, high winds and intense storm events; the 2024 Calgary hailstorm caused nearly C$2.8 billion in insured losses, illustrating hail risk to roofing across the city The City of Calgary lists hail and high wind as primary climate hazards that affect roof performance and design choices Metal roofing can perform very well in wind and heavy storms—standing-seam profiles resist uplift—and many metal products resist impact from smaller hail; however, performance depends on system design, installation quality and material durability. Properly engineered metal systems (like Interlock Metal Roofing) are designed for durability, hail protection and wind resistance. Homeowners prioritise weather resilience to reduce damage, claims and maintenance, protect home value and ensure occupant safety. Choosing durable metal also reduces long‑term repair costs and can lower insurance risk.
Metal roofing performance depends on the base metal—steel, aluminium, copper and various alloys differ widely in corrosion resistance. Some materials (aluminium, stainless steel, copper) resist corrosion naturally; coated steels (galvanized/galvalume) rely on protective layers. Aluminium performs especially well in wet or coastal environments because it forms a stable oxide film that prevents rusting. Homeowners should prioritise corrosion resistance since it directly affects roof lifespan, maintenance costs, warranty validity and long‑term appearance—especially in Calgary’s freeze‑thaw cycles and exposure to road salts and precipitation. Interlock Metal Roofing systems use aluminium construction designed for strong corrosion resistance and are further protected by the Alunar Coating System for extra protection, enhancing durability, reducing maintenance and helping preserve colour and value.
Metal roofing is generally low maintenance and highly durable in Calgary’s climate, resisting snow, ice and UV. However, no roof is completely maintenance‑free. Homeowners should inspect roofs at least twice a year and after major storms. Check for accumulated debris (leaves, branches), clear gutters and downspouts, and inspect flashings, seals and roof penetrations (vents, chimneys, skylights) for loose fasteners, corrosion or sealant failure. Seasonal factors—heavy snowfall, ice dams, wind and spring/summer blowdown—can cause localized damage or blockage. Promptly remove debris and address flashing or seal problems to prevent leaks. Overall, metal roofs offer long life and lower upkeep than many materials, but periodic inspections and timely minor repairs keep performance and warranties intact.
In Calgary, a metal roof can increase home value because buyers often prioritise durable, low‑maintenance roofs that reduce future labour and repair costs. Premium roofing materials also boost curb appeal, helping a property stand out in competitive neighbourhoods. A long lifespan and strong weather resistance give buyers confidence in fewer future expenses, which can translate to higher offers. Architectural style matters — a metal roof that complements nearby homes and streetscapes will be more valuable than one that clashes. Interlock Metal Roofing systems offer multiple architectural profiles to suit Calgary’s varied neighbourhoods, including slate, cedar shingle, Mediterranean tile, shake and standing‑seam, available in heavy‑gauge aluminium and solid copper. This can boost resale appeal.
When comparing roofing materials in Calgary, remember local threats like large hail and freeze–thaw cycles that shorten roof life, so choose a durable roof suited to those conditions. Interlock Metal Roofing Systems are compatible with solar installation with the installation of custom solar brackets installed by Interlock Metal Roofing (Alberta) Ltd. Because solar is a long-term investment, roof lifespan matters — you don’t want to remove panels to replace a roof. If you’re planning solar now or later, select long-lasting roofing materials; Interlock systems are designed to support solar mounting solutions and are a strong choice versus shorter-lived options. Consider lifespan, warranty and local weather resilience when comparing materials.
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