Roof Measurements
Roof plans, model views, lengths, areas, pitch and ledgers. Material quantities have their own sample.
4100 Example Ridge Drive, Plano, TX 75024 (synthetic). Made-up example data, not a measurement of a real home.
Roof measurement report
Roof Report
4100 Example Ridge Drive, Plano, TX 75024
- Total roof area
- 5,125 sq ft
- Squares
- 51.25
- 1 square = 100 sq ft
- Roof facets
- 17
- Predominant pitch
- 7/12
- Grade
- A
- Sample grade
Seen from the south-west, 32° above the horizon
Drag, or focus the model and use the arrow keys, to turn it. Home returns to the first view.
Roof lines
- Eaves403' 3"
- Rakes113' 1"
- Ridges103' 8"
- Hips159' 10"
- Valleys57' 1"
- Step flashing96' 9"
- Wall flashing65' 0"
- Transitions0' 0"
- Parapet walls0' 0"
Property views
Roof model views
4100 Example Ridge Drive, Plano, TX 75024
Four directions rendered from the measured 3D model. These are drawings, not photographs.
Licensed aerial and oblique photographs are not reproduced in this PDF. The interactive web report shows the map and street imagery the source licence allows.
Sheet 2 · Diagram
Roof diagram
4100 Example Ridge Drive, Plano, TX 75024
Structures
- House and attached garage5,125 sq ft
- Detached workshop (not included)210 sq ft
Sheet 3 · Lengths
Length measurement report
4100 Example Ridge Drive, Plano, TX 75024
- Eaves403' 3"
- Rakes113' 1"
- Ridges103' 8"
- Hips159' 10"
- Valleys57' 1"
- Step flashing96' 9"
- Wall flashing65' 0"
- Transitions0' 0"
- Parapet walls0' 0"
Labels show true 3D lengths rounded to the nearest foot. Totals above are summed unrounded and rounded once to the inch.
Flashing lines are drawn dotted. 8 short or crowded lines are not labelled here; every line is listed in the edge ledger.
Sheet 4 · Areas
Area measurement report
4100 Example Ridge Drive, Plano, TX 75024
- Total roof area
- 5,125 sq ft
- Pitched roof area
- 5,125 sq ft
- Low-slope area (below 2/12)
- 0 sq ft
- Predominant pitch
- 7/12
- Predominant pitch area
- 2,402 sq ft
- Upper-story area
- 2,919 sq ft
Areas are sloped (true surface) square feet, rounded to the nearest whole number on the drawing. The totals are sums of the unrounded facet areas.
Openings such as chimneys and skylights are deducted once; roof-mounted equipment is not deducted.
Sheet 5 · Pitch and direction
Pitch and direction
4100 Example Ridge Drive, Plano, TX 75024
Area by pitch
Steepness
- 2/12 – 3/12
- 4/12 – 5/12
- 6/12 – 7/12
- 8/12 – 9/12
Pitch is shown to the nearest whole rise over 12; areas and classes use the unrounded pitch. Arrows point down the slope, the way water runs.
Sheet 6 · Facets
Facet ledger
4100 Example Ridge Drive, Plano, TX 75024
Facets 1–17 of 17
| # | Level | Pitch | Faces | Area sq ft | % roof |
|---|---|---|---|---|---|
| 1 | Main | 3/12 | N | 272 | 5.3% |
| 2 | Upper | 7/12 | N | 866 | 16.9% |
| 3 | Main | 6/12 | N | 289 | 5.6% |
| 4 | Upper | 7/12 | W | 449 | 8.8% |
| 5 | Upper | 7/12 | E | 449 | 8.8% |
| 6 | Main | 6/12 | E | 193 | 3.8% |
| 7 | Main | 6/12 | N | 487 | 9.5% |
| 8 | Main | 6/12 | S | 289 | 5.6% |
| 9 | Upper | 7/12 | S | 638 | 12.5% |
| 10 | Upper | 8/12 | W | 30 | 0.6% |
| 11 | Upper | 8/12 | E | 30 | 0.6% |
| 12 | Upper | 8/12 | W | 30 | 0.6% |
| 13 | Upper | 8/12 | E | 30 | 0.6% |
| 14 | Main | 6/12 | S | 536 | 10.4% |
| 15 | Upper | 9/12 | W | 199 | 3.9% |
| 16 | Upper | 9/12 | E | 199 | 3.9% |
| 17 | Main | 4/12 | S | 142 | 2.8% |
Sheet 7 · Summary
Roof summary and waste
4100 Example Ridge Drive, Plano, TX 75024
Measurements
- Total roof area
- 5,125 sq ft
- Pitched area
- 5,125 sq ft
- Low-slope area
- 0 sq ft
- Roof facets
- 17
- Predominant pitch
- 7/12
- Eaves
- 403' 3"
- Rakes
- 113' 1"
- Ridges
- 103' 8"
- Hips
- 159' 10"
- Valleys
- 57' 1"
- Step flashing
- 96' 9"
- Wall flashing
- 65' 0"
- Transitions
- 0' 0"
- Hips + ridges
- 263' 6"
- Eaves + rakes
- 516' 4"
Area by pitch
| Pitch | 7/12 | 6/12 | 9/12 | 3/12 | 4/12 | 8/12 |
|---|---|---|---|---|---|---|
| Area (sq ft) | 2,402 | 1,793 | 398 | 272 | 142 | 119 |
| Squares | 24.02 | 17.93 | 3.98 | 2.72 | 1.42 | 1.19 |
| Share | 47% | 35% | 8% | 5% | 3% | 2% |
Waste scenarios
| Waste | 0% | 10% | 12% | Recommended15% | 17% | 20% | 25% |
|---|---|---|---|---|---|---|---|
| Area (sq ft) | 5,125 | 5,638 | 5,741 | 5,894 | 5,997 | 6,151 | 6,407 |
| Squares | 51.25 | 56.38 | 57.41 | 58.94 | 59.97 | 61.51 | 64.07 |
Recommended 15% from complexity policy v1: rated complex (68 of 100 points). A heuristic, not a calibrated rule; adjust for your cut style.
Waste applies to the roof area only. Starter, caps, ridge and valley materials have their own allowances on the material estimate.
Sources and limitations
Evidence, checks and limitations
4100 Example Ridge Drive, Plano, TX 75024
This report
- Report
- RK-2026-0925-S4R1-R2 · v1
- Generated
- Sep 25, 2026
- Measurement grade
- A — Sample grade
- Imagery date
- Mar 1, 2026
- Geometry
- RoofKarma synthetic massing model (roof-build v1)
- Calculation
- roof-analysis v1 · complexity-policy-v1
- Template
- report-book@1 · R2
Why this grade
Shown as grade A to demonstrate a complete report. A real report is graded from its source quality, obstruction and automated checks; grade D withholds prices and orderable quantities.
Automated quality checks
| Automated check | Result | Detail |
|---|---|---|
| Every facet closes | Passed | All 17 facets are closed planar polygons. |
| Every line is classified | Passed | No unclassified line; each is an eave, rake, ridge, hip, valley or flashing line. |
| Shared lines counted once | Passed | Ridges, hips and valleys shared by two facets are single lines in every total. |
| Pitch within 0/12 to 24/12 | Passed | Every facet pitch is within the modelled range. |
| Totals recompute exactly | Passed | Facet areas sum to 5,125 sq ft before display rounding. |
| Structures in scope | Note | Detached workshop not included in totals (selectable). |
| Source | Note | Synthetic sample geometry. A real report states its imagery source, date and quality here. |
Check at the property
- Confirm valley and wall-flashing lengths where lower roofs meet walls.
- Check chimney and skylight flashing condition and whether kits will be replaced.
- Count vents and pipe boots; the drawing shows what is visible from above.
- Confirm tear-off layers and decking before finalising the order.
Limitations
- Every figure in this sample comes from an invented house built to exercise the report; it is not a surveyed property.
- Measurements come from above: wall heights, decking condition and the number of layers are not visible from the air.
- No accuracy or certification is claimed; a roofer confirms quantities on site before ordering.
Appendix
Edge ledger
4100 Example Ridge Drive, Plano, TX 75024
86 lines, each counted once
| Line | Type | True length | Plan length | Facets | On drawing |
|---|---|---|---|---|---|
| E1 | Eaves | 36' 1" | 36' 1" | F14 | Labelled |
| E2 | Eaves | 29' 6" | 29' 6" | F7 | Labelled |
| E3 | Eaves | 26' 3" | 26' 3" | F2 | Labelled |
| E4 | Eaves | 26' 3" | 26' 3" | F6 | Labelled |
| E5 | Eaves | 26' 3" | 26' 3" | F3 | Labelled |
| E6 | Eaves | 26' 3" | 26' 3" | F8 | Labelled |
| E7 | Eaves | 23' 0" | 23' 0" | F1 | Labelled |
| E8 | Eaves | 23' 0" | 23' 0" | F2 | Labelled |
| E9 | Eaves | 16' 5" | 16' 5" | F4 | Labelled |
| E10 | Eaves | 16' 5" | 16' 5" | F9 | Labelled |
| E11 | Eaves | 16' 5" | 16' 5" | F17 | Labelled |
| E12 | Eaves | 14' 9" | 14' 9" | F4 | Labelled |
| E15 | Eaves | 13' 1" | 13' 1" | F5 | Labelled |
| E16 | Eaves | 13' 1" | 13' 1" | F5 | Labelled |
| E17 | Eaves | 13' 1" | 13' 1" | F9 | Labelled |
| E18 | Eaves | 9' 10" | 9' 10" | F2 | Labelled |
| E19 | Eaves | 9' 10" | 9' 10" | F15 | Labelled |
| E20 | Eaves | 8' 2" | 8' 2" | F4 | Labelled |
| E21 | Eaves | 8' 2" | 8' 2" | F16 | Labelled |
| E22 | Eaves | 6' 7" | 6' 7" | F5 | Labelled |
| E23 | Eaves | 6' 7" | 6' 7" | F5 | Labelled |
| E24 | Eaves | 6' 7" | 6' 7" | F9 | Labelled |
| E25 | Eaves | 5' 8" | 5' 8" | F10 | Labelled |
| E26 | Eaves | 5' 8" | 5' 8" | F11 | Labelled |
| E27 | Eaves | 5' 8" | 5' 8" | F12 | Labelled |
| E28 | Eaves | 5' 8" | 5' 8" | F13 | Labelled |
| E29 | Eaves | 3' 3" | 3' 3" | F9 | Labelled |
| E30 | Eaves | 1' 8" | 1' 8" | F16 | Listed only |
| E31 | Rakes | 16' 6" | 14' 9" | F7 | Labelled |
| E32 | Rakes | 16' 6" | 14' 9" | F14 | Labelled |
| E33 | Rakes | 12' 4" | 9' 10" | F15 | Labelled |
| E34 | Rakes | 12' 4" | 9' 10" | F16 | Labelled |
| E35 | Rakes | 11' 10" | 11' 6" | F1 | Labelled |
| E36 | Rakes | 11' 10" | 11' 6" | F1 | Labelled |
| E37 | Rakes | 8' 8" | 8' 2" | F17 | Labelled |
Shared lines such as ridges, hips and valleys appear once and list both facets. Skylight kits are shown for completeness and are not roof line totals.
Continued on next page →
Appendix
Edge ledger (continued)
4100 Example Ridge Drive, Plano, TX 75024
86 lines, each counted once
| Line | Type | True length | Plan length | Facets | On drawing |
|---|---|---|---|---|---|
| E38 | Rakes | 7' 4" | 6' 7" | F14 | Labelled |
| E43 | Rakes | 3' 11" | 3' 3" | F13 | Listed only |
| E44 | Rakes | 3' 11" | 3' 3" | F12 | Labelled |
| E45 | Rakes | 3' 11" | 3' 3" | F11 | Labelled |
| E46 | Rakes | 3' 11" | 3' 3" | F10 | Labelled |
| E47 | Ridges | 29' 6" | 29' 6" | F7, F14 | Labelled |
| E48 | Ridges | 22' 6" | 22' 6" | F15, F16 | Labelled |
| E49 | Ridges | 19' 8" | 19' 8" | F2, F9 | Labelled |
| E51 | Ridges | 13' 1" | 13' 1" | F3, F8 | Labelled |
| E52 | Ridges | 9' 5" | 9' 5" | F10, F11 | Labelled |
| E53 | Ridges | 9' 5" | 9' 5" | F12, F13 | Labelled |
| E54 | Hips | 30' 1" | 27' 10" | F2, F4 | Labelled |
| E55 | Hips | 30' 1" | 27' 10" | F2, F5 | Labelled |
| E56 | Hips | 30' 1" | 27' 10" | F5, F9 | Labelled |
| E57 | Hips | 30' 1" | 27' 10" | F4, F9 | Labelled |
| E58 | Hips | 19' 8" | 18' 7" | F3, F6 | Labelled |
| E59 | Hips | 19' 8" | 18' 7" | F6, F8 | Labelled |
| E60 | Valleys | 17' 8" | 16' 0" | F9, F15 | Labelled |
| E61 | Valleys | 17' 8" | 16' 0" | F9, F16 | Labelled |
| E62 | Valleys | 5' 5" | 5' 0" | F9, F11 | Labelled |
| E63 | Valleys | 5' 5" | 5' 0" | F9, F12 | Labelled |
| E64 | Valleys | 5' 5" | 5' 0" | F9, F13 | Labelled |
| E65 | Valleys | 5' 5" | 5' 0" | F9, F10 | Labelled |
| E66 | Step flashing | 16' 6" | 14' 9" | F7 | Labelled |
| E67 | Step flashing | 14' 8" | 13' 1" | F3 | Labelled |
| E68 | Step flashing | 14' 8" | 13' 1" | F8 | Labelled |
| E69 | Step flashing | 9' 2" | 8' 2" | F14 | Labelled |
| E70 | Step flashing | 8' 8" | 8' 2" | F17 | Labelled |
| E71 | Step flashing | 6' 7" | 5' 8" | F9 | Listed only |
| E72 | Step flashing | 6' 7" | 5' 8" | F9 | Listed only |
| E73 | Step flashing | 6' 7" | 5' 8" | F9 | Listed only |
| E74 | Step flashing | 6' 7" | 5' 8" | F9 | Listed only |
| E75 | Step flashing | 3' 5" | 2' 11" | F2 | Labelled |
| E76 | Step flashing | 3' 5" | 2' 11" | F2 | Labelled |
| E77 | Wall flashing | 23' 0" | 23' 0" | F1 | Labelled |
Shared lines such as ridges, hips and valleys appear once and list both facets. Skylight kits are shown for completeness and are not roof line totals.
Continued on next page →
Appendix
Edge ledger (continued)
4100 Example Ridge Drive, Plano, TX 75024
86 lines, each counted once
| Line | Type | True length | Plan length | Facets | On drawing |
|---|---|---|---|---|---|
| E78 | Wall flashing | 16' 5" | 16' 5" | F17 | Labelled |
| E79 | Wall flashing | 6' 7" | 6' 7" | F14 | Labelled |
| E80 | Wall flashing | 3' 3" | 3' 3" | F9 | Labelled |
| E81 | Wall flashing | 3' 3" | 3' 3" | F9 | Listed only |
| E82 | Wall flashing | 3' 3" | 3' 3" | F9 | Labelled |
| E83 | Wall flashing | 3' 3" | 3' 3" | F9 | Listed only |
| E84 | Wall flashing | 2' 11" | 2' 11" | F2 | Labelled |
| E85 | Wall flashing | 2' 11" | 2' 11" | F2 | Labelled |
| E86 | Skylight kit | 4' 7" | 3' 11" | F2 | Labelled |
| E87 | Skylight kit | 4' 7" | 3' 11" | F2 | Labelled |
| E88 | Skylight kit | 4' 7" | 3' 11" | F2 | Labelled |
| E89 | Skylight kit | 4' 7" | 3' 11" | F2 | Labelled |
| E90 | Skylight kit | 2' 4" | 2' 4" | F2 | Labelled |
| E91 | Skylight kit | 2' 4" | 2' 4" | F2 | Labelled |
| E92 | Skylight kit | 2' 4" | 2' 4" | F2 | Labelled |
| E93 | Skylight kit | 2' 4" | 2' 4" | F2 | Labelled |
Shared lines such as ridges, hips and valleys appear once and list both facets. Skylight kits are shown for completeness and are not roof line totals.