Built Up Roofing (BUR) - also known as a tar and gravel roof. This is a tar infused felt rolled up on the roof of overlap between the layers. Floating tar applied to the surface and in between the overlapping layers. Depending on conditions, usually this type of roof lasts 10 to 15 years and then will need to add layers to. A cushioning material, such as small stones, can be used to protect the roof system and extend the life of the Calgary roofing.
Bitumen Roof - is a hybrid of BUR systems where material is manufactured in a factory and shipped in rolls to be applied to the roof deck. The material is modified tar or asphalt with rubber is typically added for better performance. Normally a BUR roof underlayment is used for the application of modified bitumen that is applied with adhesive, torch or hot mop. A topping material is usually necessary to protect the roofing Calgary system. The life of this type of roof usually more than 20 years.
Ballast Roof - is a membrane Calgary roofing system that is usually loose to the roof deck and held in place by the weight of a topping such as small stones or precast concrete pavers. A common material used as a diaphragm is EPDM. Seams and the membrane are attached with glue. When well maintained, a ballast roofs normally last for 30 years.
Single ply Roofing systems - just a single layer sheet with a membrane made of several types of synthetic polymers. During installation, they are sealed in the joints to create watertight. While they usually come with a higher price tag, you get what you pay for. Single ply membrane roof can last longer than almost any other roof type; however, it is essential to select a single ply membrane with a heavy base and strong knit design. The membranes are generally in excellent UV and tear resistance, two factors that drive their lifetime. In theory, with proper care and maintenance, a single layer membrane should last over 50 years. In practice, the better engineered them, invented about 25 years ago and today is the lack of coverage and can be as low as 1%.
Green Roofing Systems - have been used for centuries in Europe to reduce energy consumption and the heat of the city, buildings management. This trend is captured in North America in recent years. Green roofs slow the roof drainage down, so the vegetation to save water and have water evaporates into the atmosphere directly from the ceiling. This reduces the load on both buildings and the city's sewage system tremendously. The basis for a green roof system is typically the same mechanically as a ballasted roof. Instead of the use of loose stone, soil and vegetation used. However, the main difference is that the material for the roof must also serve a dual function as a root barrier to stop penetration of roots in the roof. It is appropriate to consider using a membrane designed specifically for green roofs. A well designed and installed green roof can last for over 20 years.
Written by:
Hubbard Roofing & Exteriors Inc.
775 Lake Bonivista Drive Southeast
Calgary, AB, T2J 7C9
(403)995-0677
Bitumen Roof - is a hybrid of BUR systems where material is manufactured in a factory and shipped in rolls to be applied to the roof deck. The material is modified tar or asphalt with rubber is typically added for better performance. Normally a BUR roof underlayment is used for the application of modified bitumen that is applied with adhesive, torch or hot mop. A topping material is usually necessary to protect the roofing Calgary system. The life of this type of roof usually more than 20 years.
Ballast Roof - is a membrane Calgary roofing system that is usually loose to the roof deck and held in place by the weight of a topping such as small stones or precast concrete pavers. A common material used as a diaphragm is EPDM. Seams and the membrane are attached with glue. When well maintained, a ballast roofs normally last for 30 years.
Single ply Roofing systems - just a single layer sheet with a membrane made of several types of synthetic polymers. During installation, they are sealed in the joints to create watertight. While they usually come with a higher price tag, you get what you pay for. Single ply membrane roof can last longer than almost any other roof type; however, it is essential to select a single ply membrane with a heavy base and strong knit design. The membranes are generally in excellent UV and tear resistance, two factors that drive their lifetime. In theory, with proper care and maintenance, a single layer membrane should last over 50 years. In practice, the better engineered them, invented about 25 years ago and today is the lack of coverage and can be as low as 1%.
Green Roofing Systems - have been used for centuries in Europe to reduce energy consumption and the heat of the city, buildings management. This trend is captured in North America in recent years. Green roofs slow the roof drainage down, so the vegetation to save water and have water evaporates into the atmosphere directly from the ceiling. This reduces the load on both buildings and the city's sewage system tremendously. The basis for a green roof system is typically the same mechanically as a ballasted roof. Instead of the use of loose stone, soil and vegetation used. However, the main difference is that the material for the roof must also serve a dual function as a root barrier to stop penetration of roots in the roof. It is appropriate to consider using a membrane designed specifically for green roofs. A well designed and installed green roof can last for over 20 years.
Written by:
Hubbard Roofing & Exteriors Inc.
775 Lake Bonivista Drive Southeast
Calgary, AB, T2J 7C9
(403)995-0677
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