Page 1 of 5
Project Totals
Total Roof Area
7,923 SF
Predominant Pitch
8:12 (33.7°)
Gross Area(w/8% waste)
8,557 SF
IWB(Ice & Water Barrier)
2859.3 SF
Edge Lengths
→ amber = order quantity w/ 8% waste
Eave383 LF → 414
Rake Edge66 LF → 71
Total Perimeter449 LF → 485
Ridge160 LF → 173
Hip371 LF → 401
Valley269 LF → 291
Eaves Flashing383 LF → 414
Overhang Offset54 LF → 58
© Google Maps — Imagery for reference
Waste Factor (Total Roof Area)
| Waste % |
5% | 8% | 10% | 15% | 20% |
| Area (SF) |
8,319 | 8,557 | 8,715 | 9,111 | 9,508 |
| Squares |
83.2 | 85.6 | 87.2 | 91.1 | 95.1 |
Highlighted column = the waste factor applied to this report (set by you).
Area by Roof Plane
| Plane |
Area (SF) |
Pitch |
% Total |
| Upper Roof |
7,791 → 8,414 |
8:12 |
98.3% |
| Hidden Under Overhang 1 |
25 → 27 |
8:12 |
0.3% |
| Hidden Under Overhang 2 |
18 → 19 |
8:12 |
0.2% |
| Hidden Under Overhang 3 |
35 → 38 |
8:12 |
0.4% |
| Lower Eave 1 |
72 → 78 |
8:12 |
0.9% |
| Obstructions deducted |
−18 SF |
15 traced obstructions (chimneys / vents / skylights) |
| Total |
7,923 SF → 8,557 |
8:12 |
100% |
Areas per Pitch
| Pitch |
Area (SF) |
Squares |
Faces |
% of Roof |
| 8:12 |
7,941 |
79.4 |
31 |
100% |
Roof-Roofing
roofmanager.ca • 2026-08-06 • p.1
Page 2 of 5
Roof Outline — Traced Footprint
The measured roof traced over the property aerial — the house perimeter and every ridge, hip & valley are shown in yellow.
© Google Maps — yellow outline reflects the traced measurement geometry, drawn on the imagery it was traced from
Total Roof Area
79.2 squares
Does not include waste
Suggested Waste Factor
8%
85.5 squares with waste
Roof-Roofing
roofmanager.ca • Roof Outline
Page 5 of 5
Roof Measurement & Material Summary
Holladay, UT
Total Roof Area
7,923 SF
79.2 squares
Gross w/8% Waste
8,557 SF
85.6 squares
Pitch
8:12
33.7° · ×1.2019
Roof Measurements
| Total Roof Area (Sloped) |
7,923 SF |
| Footprint (Projected) Area |
6,592 SF |
| Gross Area (w/8% waste) |
8,557 SF |
| Roofing Squares (net) |
79.2 |
| Roofing Squares (gross) |
85.6 |
| Predominant Pitch |
8:12 (33.7°) |
| Slope Multiplier |
×1.2019 |
| Roof Planes |
27 |
| Ice & Water (Eave Perimeter) |
383 LF |
Material Summary
| Material |
Qty |
Unit |
Based On |
| ■Field Shingles |
238 |
bundles |
1 bundle = 33.3 sq ft · does not include waste |
| ↳Field Shingles · with 8% waste |
257 |
bundles |
1 bundle = 33.3 sq ft + 8% waste (recommended for this report) |
| ■Underlayment |
8,557 |
SF |
7,923 SF net + 8% waste |
| ❄Ice & Water Shield |
383 |
LF |
383 ft eave perimeter · membrane coverage 2,859 SF (code-trigger basis) |
| ▲Ridge Cap |
530 |
LF |
160 ft ridge + 371 ft hip |
| ▬Starter Strip |
5 |
bundles |
383 ft eaves + 8% waste ÷ 100 LF/bundle |
| ─Drip Edge |
485 |
LF |
449 ft (eave + rake) + 8% waste |
| ▼Valley Flashing |
30 |
pcs |
269 ft valley + 10% waste = 296.3 LF |
| ▭Overhang Offset Flashing |
6 |
sticks |
56.8 LF upper-eave-over-lower-roof junction (incl. 5% waste) |
Waste Factor Reference
Accuracy: ±2% area, ±1% linear — industry-standard aerial-measurement tolerance.
Engineering-grade estimate; physical verification recommended for code-critical work.
© 2026 Roof-Roofing.
Gutters Breakdown (derived from traced eave perimeter)
Total Gutter
383 LF
5″ K-style aluminum
Downspouts
11
recommended · by drainage area
Gutter Runs
4
4 open · 0 looped
Corners
26
11 in · 15 out
| Gutter Run |
Length |
Corners |
Type |
| Main House — 364 LF · 3 runs |
| Run 1 |
140.5 LF |
11 |
Open · 2 end caps |
| Run 2 |
19.0 LF |
3 |
Open · 2 end caps |
| Run 3 |
204.8 LF |
10 |
Open · 2 end caps |
| Lower Roof — 18 LF · 1 run |
| Run 1 |
18.4 LF |
2 |
Open · 2 end caps |
| TOTAL |
383 LF |
26 |
4 runs · 8 end caps |
Runs are continuous eave-only sections — gutters terminate at gable (rake) ends and never cross a lower-eave wall junction. Downspouts sized by drainage area (~600 SF per 2″×3″, min. 1 per run). Verify against local rainfall & roof drainage.
Roof-Roofing
roofmanager.ca • 2026-08-06 • Measurement Summary
