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Costs Of A New Roof

Roof replacement cost varies by material, roof pitch, labour, and complexity of the roof. The chart below represents a general average cost based on roof types. For example, an asphalt roof costs $3 per square feet on average. In reality, some asphalt roofs may cost up to $7 or $8 per square feet due to using a premium product, or the roof has a very steep pitch and the installation is challenging.  

What items are included in the cost?

Roofing Labour

The most expensive portion of any roof replacement is its labour cost. Roofing labours count for at least half of the total cost of a roof replacement. This is because it takes many labour hours to complete a project and it takes many years of training to make an excellent roofer.

There are different types of roofing labourers and their rate varies depending on their skills and work experience. The ground level roofing labourers perform shingle tear-offs and other basic labour works. They also assist other professional roofers, who mostly do installation and metal flashing work. Crew lead is the head of a crew. She/he is responsible for managing the workflow and ensuring the quality of the work performed. A crew lead reports directly to the operating manager or the business owners.


A roof replacement job takes a lot of material. An average roof consumes between 70 to 110 bundles of asphalt shingles, that is 3,500 to 5,500 Ibs of materials. Laminated asphalt shingle price start at around $0.7 per square foot, or $70 per square, and the cost increases by 5% annually by the manufacturer. Premium asphalt shingles can be twice as much in comparison.  

When considering the cost of materials, roof shingles are just one thing. Roofing accessories can be a significant portion of the total material cost as well. Below is a list of roofing accessories:

  • Starter shingles
  • Hip & ridge shingles
  • Ice & water protection
  • Roof underlayment
  • Plywood
  • Ventilation system
  • Goosenecks and plumbing  
  • Drip-edge and other metal flashings
  • Nails, caulking, and other small items

Shingle Delivery and Hoisting

Asphalt shingles come in bundles. The bundles are transported by a truck and hoisted on top of a roof using a crane. In this picture, a Convoy 30-ton crane is hoisting shingles to a roof top in Edmonton.


Shingle waste, dirt and other construction garbage is placed in dumping bins or trailers. In this picture, 220 Junk in Edmonton is placing a large dumping bin in front of a home. After the bin or trailer is full, it will be hauled away to the Edmonton Waste Management facility or a similar facility.

A Full Roof Inspection

The best way to reduce extra cost for homeowners is to conduct a full roof inspection before signing a Service Contract. A roof surface inspection can check the condition of the roof deck, layers of shingles, potential chimney repair work, and other flashing works. An attic inspection can review the roof ventilation system, the condition of wood trusses, the condition of the roof deck, and the insulation level. A roofing quote can be adjusted and finalized based on the inspection result.

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