Roofing Calculator
Sloped roof area from the plan area and the pitch.
Roof area
83.5 m²
Worked example
A plan area of 80 m² with a rise of 300 mm over a run of 1,000 mm has a slope factor of about 1.044. The roof area is about 83.5 m².
FAQ
- What is plan area?
- The flat footprint of the roof, not the sloped surface. The pitch stretches it into the real roof area.
- Does this include eaves?
- Only if they are inside the plan area you enter.
- Is this the area to order?
- It is the sloped area. Add waste for hips, valleys, and ridge before you order sheets or tiles.