मुफ्त छत क्षेत्रफल कैलकुलेटर
छत का कुल क्षेत्रफल ढलान सहित गणना करें। सामग्री के सटीक अनुमान के लिए माप दर्ज करें।
Roof Surface Area
1,677 sq ft
Roof Surface Area vs Building Length
सूत्र
How to Calculate Roof Area
Formula
Roof Area = Footprint Area × Pitch Factor
Pitch Factor = sqrt(1 + (Rise/12)²)
This method converts the horizontal footprint into the actual surface area by accounting for the roof slope.
हल किया गया उदाहरण
A building 50 ft by 30 ft with a 6/12 roof pitch.
- 01Footprint area = 50 × 30 = 1,500 sq ft
- 02Pitch factor = sqrt(1 + (6/12)²) = sqrt(1.25) = 1.1180
- 03Roof area = 1,500 × 1.1180 = 1,677 sq ft
- 04Roofing squares = 1,677 / 100 = 16.8 squares
अक्सर पूछे जाने वाले प्रश्न
Does this include overhangs?
No. This calculation is based on the building footprint. Add the overhang area separately. For example, a 1-foot overhang on all sides of a 50×30 building adds approximately 168 sq ft.
What about complex roof shapes?
For hip roofs, gable roofs, and simple shapes, the pitch factor method works well. For complex roofs with multiple pitches, valleys, and dormers, calculate each section separately and add them together.
How do I measure roof pitch from the ground?
Use a pitch gauge or speed square on a rafter, or measure from inside the attic. You can also estimate by holding a level at the roof edge and measuring the rise over 12 inches of run.
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