Squares
One roofing square equals 100 square feet of roof surface — the common unit for planning area.
Built around your home
Know the roof over your head
Most homeowners inherit a roof without a clear vocabulary for it. A few plain terms — squares, pitch, layers — make every later conversation shorter and more useful.
Pitch
Steeper roofs have more surface than the footprint below. Geometric pitch factors convert a horizontal building footprint into a roof-surface planning range. Living floor area is not a roof measurement. Try the safe, ground-only visual pitch helper on the Estimate page.
Layers
Underlayment, flashing, ventilation, and the shingle or covering itself all affect performance — and only an inspection confirms them.
Common questions
Can you reroof a home that has solar panels?
Yes — reroofing homes with solar panels is Fullerton Construction’s stated specialty. Fullerton coordinates the full project: assess the roof and array, plan removal and storage, reroof, then reinstall the panels. Panel removal and reinstallation are performed by a licensed electrician subcontracted by Fullerton.
Check your solar company’s warranty and service terms before authorizing work. Roofing, electrical and storage arrangements are confirmed before work; no solar-company partnership is implied. Read the solar reroofing process →
What is a roofing square?
A square is 100 square feet of roof surface. A 2,000 sq ft roof surface is about 20 squares before waste and detailing.
Why does pitch change the number?
A steeper plane covers more area than a flat rectangle of the same length and width. That is why footprint alone undercounts many roofs.
Can an online tool replace an inspection?
No. Access, layers, slope, condition, and decking are not inspected online. Use these tools to prepare — then confirm in person.
Will this site show prices?
Not on this preview. Materials, labor, tear-off, and site conditions vary too widely to invent a number here.
Recognize the shape
Roof styles around New England
Original simplified illustrations, not measured roof plans. A shape does not establish pitch or area.
Read the written terms
Manufacturer warranties
Compare the manufacturer’s coverage for representative architectural shingle lines. GAF and Atlas are Fullerton Construction’s stated preferred brands, not a statement of manufacturer certification.