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Roof Cleaning Memphis TN (901) 826-8370 wrote:

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Roof Revivalist wrote:

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Thanks for the feedback you guys.  I'm thinking it probably sounds better to quote .19 or .20 cents a foot for a whole roof than close to double that for a half, even thought the math favors the 1/2 roof price to the customer.  That way job sounds more complete as well as the whole roof gets treated.

Is there a roof slope calculator that if as example a roof measures say 25 x 100 = 2500 square feet and the pitch is 4/12, is there a multiplier that gives me the true square feet of a pitch roof.  For quick guesstimate I added 20% to the sq ft and used that as total square feet.  Probably too much, huh?   

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 I'm a roofer by trade. I use a simple factor to measure roofs, when I'm feeling lazy and insurance is gonna measure and pay anyway.

Sqft of home x 1.2 for low pitch (easily walkable)

                        1.4 for medium pitch(can walk but more difficult)

                        1.6 for steep(No Way Are You Crazy!!!!)

so, example

2500sq/ft x 1.2= 3000

2500sq/ft x 1.4= 3500

2500sq/ft x 1.6= 4000

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 Now that is a nice simple formula! Pitch really does change sq footage a lot!

PS: I just posted a comment on your site too!