What is the best kind of shingle to use?
Some of the best asphalt shingles on the market is Malarkey Legacy. They have a class 4 hail-resistance rating and are great for Calgary weather.
These durable and attractive shingles give you the best bang for your buck and come with an optional ScotchguardTM Protector for 3M for protection against algae, which can cause black streaks on your roof. They come with a limited lifetime warranty for up to 209 kph wind.
To speak with a roofing contractor that installs this product speak with Asonic Roofing.