How Contractors Determine the Price of a Roof Replacement
After
inspecting the roof and speaking with homeowner, a contractor will draw up an
estimate for the project. Estimating takes several important factors into consideration including materials, complexity of the job
and the amount of time needed to complete the job.
Typical Breakdown:
Roof Size
Roofs
with more slant have a larger surface area than roofs with less slant.
Roof Slope
Roof Complexity
A
roof with more level changes hips and valleys, and add-ons, such as dormers,
will be more expensive than a simple roof.
Existing Layers
It’s
sometimes possible to install over existing shingles, but this lowers the
lifespan and can cancel the warranty. It’s better to do a complete replacement.
The more layers that must be removed will increase the price.
Debris and Waste Removal
Asphalt
shingles, the most common material used, are considered hazardous waste and
must be disposed of properly.
Materials
The
type of new material that will be installed, such as asphalt shingles, steel
shingles, slate shingles, etc.
Building Materials
This
covers all other materials needed to replace a roof including boards and
plywood for the roof deck, nails, drop cloths, tarps, staples, calk, etc.
Roof Underlayment and Accessories
Underlayment
and accessories are part of a system that makes the roof complete and
watertight.
Ventilation
Ventilation
is very important for expanding the lifespan of a roof, increasing its energy
efficiency and meeting building code requirements in some areas.
Labor Costs
Installation/labor
costs will vary depending on the size and complexity of the job, the workers’
experience and how long the project will take.
Overhead Costs
This
covers the basic costs of doing business (insurance, advertising, taxes,
permits, office space, equipment, trucks, office supplies, office staff, etc.).
Comments
Post a Comment