Rates

What goes in to determining the cost

What goes in to determining the cost of your roof installation? It all comes down to how long it will take, and the inherent difficulty of the task at hand.

Here I will outline some of the common features that will impact the cost of your roof.

Steepness or Pitch

Don’t be deceived, your roof may well be steeper than it looks! Low slope applications require special materials and application to ensure proper waterproofing. Steep slope applications require special safety equipment and generally proceed at a much slower pace.
Mansard/turrets may require scaffolding, and require special installation techniques and equipment.

Steep slope applications require special safety equipment and generally proceed at a much slower pace. Mansard/turrets may require scaffolding, and require special installation techniques and equipment.

The overall complexity of your roof

A fair amount of leeway is given in this regard, however roofs with an excessive number of valleys, walls and planes can slow us down considerably and generate more ‘cut-off’ waste than a simpler roof.

The number of layers of previous shingles

Our estimates include the removal and disposal of one layer of asphalt roofing shingles. However there are cases when the home has two layers of shingles on the roof which requires more time to remove and extra fees to dump.

Plywood/ aspanite versus plank-board

Roofs that have decks constructed of plank-board instead of plywood/aspenite proceed much more slowly, and generally require more maintenance, repair and replacement of the roof deck. This is generally only a consideration if the house was built before 1950. Houses with plank-board construction can also host many surprises that may require repair before work can proceed. This is usually caused by either excessive dry-rot, or very large gaps in the board. Both of these may require large areas of wood replacement, or even applying a new deck made of thin plywood/aspenite over top of the existing roof deck. Other issues may include the repair or replacement of broken trusses, fascia and soffit, or eaves-troughing. If you have an older house please be sure to set aside extra funds to attend to any possible issues that may arise during the renovation process.

How is the square footage of your roof calculated?

For starters: we never estimate from the ground. We go up on the roof and calculate the surface area by counting the number of shingles on each major plane. This value is always larger than the footprint of the house. For most roofs, 10% is added to the measured area to account for starter, ridge caps, and cut-off waste. This number is increased to 15% for hipped roofs, as they require significantly more capping and starter material.

*Our rates are always based upon the most current available material costs.

*All prices include drip edge, ice and water shield, synthetic underlayment, delivery and disposal of materials, Cambridge Lifetime shingles, and the appropriate amount of ventilation for your roof (Venmar and Duraflow)

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