Roofing
Roofing covers the installation, replacement, and repair of a home's roof system, including shingles or other materials, underlayment, flashing, and ventilation. Work is priced per square, which equals 100 square feet of roof area.
How roofing is done
- Tear off old shingles down to the decking
- Inspect and repair or replace damaged decking
- Install underlayment, drip edge, and flashing
- Lay new shingles or roofing material from eaves up
- Install ridge vents and seal penetrations
- Clean up with a magnet sweep and final inspection
What homeowners should know
- Get multiple bids priced per square with the same shingle grade
- Confirm the crew is licensed, insured, and offers a workmanship warranty
- Ask whether they tear off or lay over existing shingles
- Have your attic ventilation evaluated during the quote
- Verify how they will protect landscaping and handle nail cleanup
Permits, timelines & things to consider
- Most areas require a permit and a final roof inspection
- Material choice, from asphalt to metal or tile, is the biggest cost driver
- Steep or complex roofs cost more per square due to labor and safety
- Roofing is weather-dependent and best done in dry, mild conditions
- Proper ventilation and flashing prevent leaks and premature wear
Frequently asked questions
How long does a roof replacement take?
A typical asphalt-shingle roof is completed in one to three days, though larger or more complex roofs and weather can extend that.
What does 'per square' mean in roofing?
A square equals 100 square feet of roof surface, and roofers price and estimate materials by the number of squares.
Do I need a permit to replace my roof?
Most jurisdictions require a permit and a final inspection for a roof replacement, which your contractor typically handles.