Mansard roof Alshalt Shingles Calculator

Alshalt Shingles Needed For A Mansard roof

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Calculate the square footage of Mansard style roof.

Mansard style roof

A Mansard roof is a four-sided Gambrel style Hip roof.

Mansard Roof Shingles

Building Length ft inch
Building Width ft inch
Eaves Overhang inch
Upper Roof Pitch /12
Lower Roof Pitch /12
Lower Roof Length ft inch
Coverage of One Pack ft²
Waste %

Results:

Lower Roof Area ft²
Upper Roof Area ft²
Total Roof Area ft²
Ridge Length lineal ft
Shingle Starter Strip lineal ft
Shingles Needed to Cover Roof packs
Waste Factor Adds: packs
Total Shingles Needed packs

Instructions

  1. Enter the length of the building. (feet+inches)
  2. Enter the width of the building. (feet+inches)
  3. Enter the overhang of the eaves. (inches)
  4. Enter the pitch of the upper roof: (rise /12")
  5. Enter the pitch of the lower roof: (rise /12")
  6. Enter the length of the lower roof. (feet+inches)

Results

For the steep lower section of the roof the square feet, roof pitch in degrees and slope percentage
For the upper roof the square feet, roof pitch in degrees and slope percentage.
The length of the four hips/ridges of the lower roof section for capping in lineal feet

Mansard style roof
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