Roofing shingles replacement cost

2020 Calculator to estimate the cost to replace roofing shingles

Input parameters
Project details
Roof size in squares1
Number of floors2
Roof pitch3
Roof type4
Old roofing materials removal5
Additional elements on the roof6
# of vents
# of skylights
# of chimneys
# of vent pipes

Computed parameters
Estimated expenses
Labor cost7
Materials cost8
Total roof replacement cost9
Cost to replace shingles per square10
Project duration
Average time to complete roofing shingles replacement11

By default, roof replacement cost calculator estimates cost of labor, materials expenses and average completion time to tear off one layer of roofing shingles and install 25 squares of new asphalt shingles on simple medium slope gable roof of one story residential house. Homeowners can easily adjust input parameters and calculate total expenses bases on project size and work complexity.

1Roof size is an actual roof area in squares. One square = 100 square feet.

2Majority of residential houses with sloped roofs typically designed as one, two or three story homes. Depending on roof accessibility, installation of roofing shingles on higher houses with 3+ stories could be priced at much higher rates.

3Roof pitch defines how steep the roof is. Low-sloped roofs with up to 4/14 pitch normally walkable surfaces and installation of shingles on such roofs is less expensive compare to replacing shingles on medium-sloped or high-sloped roofs where additional equipment should be used to work on very steep surfaces.

4Cost of labor will be significantly lower to install shingles on simple roof with no valleys, dormers or custom hexagonal elements on the roof. Multiple obstacles on the roof will slow down installation process and lead to number of man-hours to increase.

5Total cost of old shingles removal determined by number of layers which have to be removed from the roof prior to new shingles installation. Tearing off existing roofing materials doesn’t include plywood or damaged wood replacement. All extra work will be priced separately.

6Shingles around ridge vents, skylights and chimneys have to be properly installed. Flashing around roof elements must prevent the water from going under the shingles. Waterproofing around vents, skylights, chimneys and pipe boots installation will result in extra work leading to labor cost increase.

7Cost of labor is an average charge by contractor to complete roofing shingles replacement accounting roof dimensions, height of a house and overall difficulty of work.

8Cost of materials includes purchasing price of drip edges, tar paper, starter strips, roofing shingles, hip and ridge shingles, galvanized roofing nails and aluminum flashing. Cost of roofing shingles estimated based on average price of medium grade asphalt shingles with 30-years limited manufacturer warranty. Expect to pay 20% - 25% less for lower grades 3-tab asphalt shingles or up to 35% more for premium laminated shingles which withstand 130 mph wind, have class A fire rating and covered by lifetime limited manufacturer warranty. Always take into consideration that waste factor of roofing shingle greatly depends on roof design and style. Roofing calculator does not estimate the cost of skylights which have to be purchase separately.

9Total cost to replace shingles is an actual amount homeowners should expect to pay in case roofing contractor will purchase and supply all necessary materials for completing roof repair project.

10Shingles replacement cost per square is an average expense to replace every 100 Sq. Ft. of roof area.

11Estimated time to replace roofing shingles is an average number of days necessary for an experienced roofing crew to complete roof replacement and clean the job site.

Roofing shingles cost calculator is for a general purpose only. Every home improvement project is unique, and labor charges and fees might vary depending on work complexity. Only local roofer is able to price the work after analyzing its difficulty. In addition, roofing materials prices greatly vary, and accurate quote for the roof replacement project could be issued only after defining which shingles have to be installed and what additional supplies have to be purchased.