Cost breakdown
This estimate converts a 1,200 sq ft footprint into roof area using a standard pitch multiplier, adds a moderate waste factor, then applies the installed cost range for Mod. Bitumen. It is a planning range, not a contractor bid, but it gives homeowners a fast baseline before comparing local quotes.
Mod. Bitumen installed roof system
Low, average, and high allowance
$7,983–$19,160
Tear-off, disposal, and site cleanup
Low, average, and high allowance
$1,320–$3,300
Pipe/chimney/skylight flashing (2×)
Low, average, and high allowance
$300–$900
What 1,200 Sq Ft Means on a Roof
A 1,200 sq ft footprint is about 12 roofing squares. That is the unit roofers actually quote in, order in, and pay disposal by.
A 1,200 sq ft house is usually a simple gable cottage, ranch, or rental with one or two roof planes and few valleys. There is little cutting, so most of the labor sits in the tear-off and the edge detailing.
Waste factor
7-10%. One or two gable ends with minimal hip and valley cutting means cutoffs get reused instead of pitched.
Tear-off and dumpster
One layer assumed. 12 squares of tear-off fits a single 10-yard dumpster with room for felt and flashing debris. One pull, one haul, usually priced inside the tear-off line.
Crew and days (membrane)
3 person crew, 1-2 days
Schedule reality
Permit is often same-day to a week depending on the town. Install is a single day for shingles. Inspection usually lands within a week of completion.
Planning checklist at this size
- Check the decking before the crew loads the roof. Cottages this size often have 1x board sheathing that needs gaps filled or re-sheeting under architectural shingles.
- Confirm the dumpster fits the driveway. On small lots it may have to sit in the street, which can need its own permit.
- Count vent cans and pipe boots while the roof is bare. Small roofs still need balanced intake and exhaust or the attic cooks the new shingles.
What changes the price?
Pitch and access
Steeper roofs require more safety setup, more labor time, and often more waste.
Tear-off layers
Old shingles, decking surprises, and disposal fees can move the final quote.
Valleys and penetrations
Chimneys, skylights, pipe boots, vents, and valleys add flashing detail and labor.
Material grade
Mod. Bitumen ranges widely by manufacturer, warranty, color, thickness, fasteners, and trim package.