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Asphalt Shingle Roofing Cost Estimator


Estimate Your Own Asphalt Shingle Roofing Costs Before Getting Roofing Contractor Bids


Do you want to get a rough idea on what it's going to cost to replace your old asphalt shingled roof or to install asphalt roofing shingles on your new home construction project? Then use my simple "Asphalt Shingle Roofing Cost Estimator".  Simply determine the amount of roof area you need to shingle, select the type of asphalt roofing shingles you would like to use, and answer the remaining miscellaneous questions in the form. Within seconds my "Asphalt Shingle Roofing Cost Estimator" will show you what you can expect a roofing contractor will charge you to shingle your roof.


Note that all roofing costs used to estimate your roofing costs are maintained in a database that I update periodically.


Asphalt Shingle Roof Cost Estimator
Select Shingle Type
Other Roofing Requirements
  Roof Area    Square Feet
  Wall Flashing    Linear Feet
  Chimney Flashing    Linear Feet
  Drip Edge    Linear Feet
  Ice & Water Shield    Linear Feet
  Ridge Vent    Linear Feet
  Soffit Vent    Linear Feet
  Pipe Vent    Number of Pipes
  Remove Old Shingles  






Roofing Cost Parameter Definitions


Roof Area - To estimate your roof area first determine the size of your home or home addition's footprint, e.g. length and width. Next, determine your home's roof pitch (rise over run). Then determine how far your roof eaves overhang the exterior walls of your home. Finally, remember back to your geometry days and Pythagorean's Theorem (a2 + b2 = C2). With this basic information you can calculate your roof area.


For example, if you have a 26 foot long home addition that is 24 wide, with a 12/12 roof pitch, and has 1 foot roof eaves, your roof area would be:

  • Roof Area = 2 x [ [the Square root of (122 x 122)]+1]   x 26]

    • Where there are 2 roof halves, 1 foot roof eave, and home addition is 26 feet long.

Wall Flashing - Measure the length of roof line edge that abuts an adjoining exterior wall.


Chimney Flashing - Measure the length of the roof line edge that abuts a fireplace.


Drip Edge - Measure the length of the roof line edge that does not abut a wall or chimney edge.


Ice and Water Shield - Measure the length of the roof line edge plus any roof valleys and near chimneys.


Ridge Vent - Measure the length of the roof peak, e.g. 26 feet in the example above, and subtract 2 feet.


Soffit Vent - Measure the length of roof line edge associated with roof eaves.


Pipe Vent - Count the number of vent pipe stacks existing the chimney.


Remove old Shingles - Do you want to remove the old shingles or not. It is highly recommend that old roof shingles be removed for maintaining new shingle warranties.


For help on Shingling Your Home's Roof, see HomeAdditionPlus.comís Asphalt Shingle Roofing Bid Sheet. The Asphalt Shingle Roofing Bid Sheet will help to ensure that your roof won't end up with a blue tarp over it and a dumpster sitting in your yard for weeks as you wait for the roofing contractor to come back and finish roofing your home.

How to Finance your Roof Project -  can help provide funds for your new home improvement project if financing is required.

Roofing Tools from Amazon.com



Roofing Price Quotes For FREE, No Obligation!

Fill out our 3-5 minute quick and easy form, and receive a free price quote on roofing from one of our prescreened and licensed roofing contractors. This process is free and there is no obligation to continue once you receive your roofing price estimate.


- Asphalt Shingle Roofing Cost Estimator -

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