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Total
Fully priced · Lowe's + Home Depot
$1,268.69*
Pitch: 6:12 (3' rise / 6' run) ·
Rafter: ~9'0" total — fits 2×8×10' board ·
Panels: 3.17' coverage × 7 panels = 22.19' · 16" front overhang · 12" sides/back ·
Lowe's: panels, closure strips, screws ·
Home Depot: everything else
| Item | Spec | Qty | Unit | Total |
|---|
| 2×8×10' rafters |
6:12 pitch; 6' run, 3' rise; rafter ~9'0" (16" front + 80.5" span + 12" back tail) — fits 10' board with 12" spare; 16" OC along 20' = 16 rafters |
16 |
$13.62 |
$217.92 |
| 2×8×12' — back wall ledger |
Rafters bear on ledger bolted to back wall top plate; 20' → 2 boards |
2 |
$16.25 |
$32.50 |
| 2×6×8' — front fascia |
Closes rafter tails at front eave; 20' + returns → 3 boards |
3 |
$8.73 |
$26.19 |
| H2.5A hurricane tie |
One per rafter each end; 16 rafters × 2 = 32; order 36 |
36 |
$0.98 |
$35.28 |
Cut one rafter to ~109" (16" front overhang + 80.5" span + 12" back tail), test fit, then cut remaining 15. Total from 10' (120") board with 11" spare. Lag bolts for ledger in wall hardware list.
| Item | Spec | Qty | Unit | Total |
|---|
| Synthetic Roofing Underlayment Contractor Grade 4'×100' (400 sq ft) |
Do NOT use felt under metal — traps moisture; 400 sq ft covers ~190 sq ft roof; Home Depot |
1 roll |
$34.98 |
$34.98 |
| Item | Spec | Qty | Unit | Total |
|---|
| Pro Select R-Matte Plus-3 Polyiso 2"×4'×8' R-13.1 |
Cut to 14.5" strips for rafter bays; 15 bays × ~6.7' span = ~100 sq ft; 3 strips per sheet (4'×8') = 29 sq ft usable per sheet → 4 sheets minimum; order 6 for extra coverage and waste; install in rafter bays leaving ~5" ventilation gap above foam; significantly reduces rain noise and interior heat |
6 sheets |
$55.78 |
$334.68 |
Install before OSB deck. Foam fits in 7.25" rafter bay (2×8) leaving 5.25" ventilation gap — critical for preventing condensation under metal panels. Score and snap to 14.5" width. Foil face toward interior (radiant barrier). A second layer can be added later for R-26.
| Item | Spec | Qty | Unit | Total |
|---|
| Union Corrugating Master Rib 3.17'×12' Charcoal Gray 29-gauge Steel Panel |
3.17' coverage; 12' length; cut to ~112" (9'4") on site — 32" waste per panel; 22' total coverage needed (20' + 12" each side) → 7 panels; run front-to-back; same profile as closure strips already sourced |
7 |
$59.98 |
$419.86 |
Apply butyl tape under side laps before fastening. Overlap one full rib at each side lap.
| Item | Spec | Qty | Unit | Total |
|---|
| Union Corrugating Master Rib foam closure strips — 4-pack |
Solid foam, Master Rib profile; 2 packs eave (front/low) + 2 packs high side (back wall); must match panel profile exactly |
4 packs |
$11.98 |
$47.92 |
| Union Corrugating #10 × 1-1/2" Galvanized Roofing Screws (100-ct) |
Galvanized/coated, self-tapping; ~250–300 screws needed → 3 boxes |
3 boxes |
$19.48 |
$58.44 |
| 50-ft Butyl Sealant Tape — Gray |
Under panel side laps; 6 laps × 7.5' = 45 LF; 1 roll (50') sufficient; Home Depot |
1 roll |
$7.98 |
$7.98 |
| Item | Spec | Qty | Unit | Total |
|---|
| F4.5 × 10-ft Black Aluminum Drip Edge — eave (front) |
Low side eave; ~22' → 3 pieces with overlap |
3 |
$7.78 |
$23.34 |
| F4.5 × 10-ft Black Aluminum Drip Edge — rakes (sides) |
Two sloped side edges; ~8' each → 1 piece per side |
2 |
$7.78 |
$15.56 |
| 2.5" × 10-ft Galvanized Steel Z Bar Flashing — back wall |
High side junction; Z-profile seals panel-to-wall; tucks under siding; ~22' → 3 pieces |
3 |
$4.68 |
$14.04 |
Install Z Bar flashing before panels. Drip edge at eave installs before underlayment. Rake trim installs after panels.
| Roof Framing | $311.89 |
| Underlayment | $34.98 |
| Roof Insulation (6 sheets polyiso R-13.1) | $334.68 |
| Metal Panels — Charcoal Gray 12' (×7, cut to 9'4") | $419.86 |
| Closure Strips + Screws + Tape | $114.34 |
| Drip Edge + Z Bar Flashing | $52.94 |
| Total | $1,268.69 |