Single shed section
Inntak
L=10m, D=4m, Pitch=30°, Overhang e=0.45m
Úttak
Ap=44.50m², As=51.38m², k=1.1547
Roof Area Reiknivél with Pitch
Calculate sloped installation area from horizontal áætlun dimensions and roof pitch.
For complex roofs, split into sections and sum them in one niðurstaða.
All dimensions are treated as horizontal verkefniion
Shed and gable sections can be combined
Degrees / Rise:Run / % / sun are cross-converted
How to use
- Select unit (m/mm), then enter section shape and áætlun dimensions.
- Choose pitch format (degrees / Rise:Run / % / sun) and inntak values.
- Enter overhang, then add sections if the roof needs split inntak.
- Yfirferð summary and breakdown, then copy, share URL, or print.
Sample
L-shape roof split into 2 sections
Inntak
Section 1: Gable / Section 2: Shed
Úttak
Sum Ap/As from each section to get total
Formulas
- r = Rise / Run
- k = sqrt(1 + r^2)
- Shed Ap = (L + 2g) × (D + e + e2)
- Gable Ap = (L + 2g) × (S + 2e)
- As = Ap × k
- Total As_total = ΣAs_i
Algengar spurningar
Should I enter rafter length?
No. Enter horizontal áætlun dimensions, not sloped member length.
How is overhang treated?
By default, overhang is treated as horizontal verkefniion. Shed uses one run-side overhang, gable uses both eave sides.
Can I use this for hip roofs or valleys?
Yes, with split inntak. Divide the roof into rectangles/trapezoids and sum sections.
Will degrees and percent return the same niðurstaða?
Yes, if they represent the same pitch. Use converted values to confirm.
Athugasemdir
- This verkfæri is for area estimation. Confirm overlaps, details, and edge conditions separately for actual work.
- For hip roofs, valleys, dormers, and similar geometry, use section split inntak.
- All dimensions are assumed to be horizontal verkefniion values.