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Estimated Total
Metal panels + trim + closures TBD from Lowe's
$739–$864+
Pitch: 8:12 (4' rise over 6' run) ·
Rafter: 7'2.5" span + 8" front overhang tail = 8'0" total ·
Panels: Lowe's black corrugated 8' — fits rafter exactly ·
Side overhang: 6" each end ·
Coverage: 22' + 1' (6" each side) = 23'
| Item | Spec | Qty | Unit | Total |
|---|
| 2×8×10' rafters |
8:12 pitch; 6' run, 4' rise; cut to 8' (7'2.5" span + 8" tail); 16" OC along 22' = 18 rafters; 2' offcut per board |
18 |
$13.62 |
$245.16 |
| 2×8×12' — back wall ledger |
Rafters bear on ledger bolted to back wall top plate; 22 LF → 2 boards |
2 |
$16.25 |
$32.50 |
| 2×6×8' — front fascia |
Closes rafter tails at front eave; 22 LF + side overhang returns → 3 boards |
3 |
$8.73 |
$26.19 |
| H2.5A hurricane tie |
One per rafter at front and back wall plate; 18 rafters × 2 = 36 total |
36 |
$0.98 |
$35.28 |
Lag bolts for ledger already in wall/roof hardware list (18 × 1/2"×4"). Confirm overhang tail angle cut at 8:12 (33.7°) before production-cutting all rafters — cut one, test fit, then cut the rest.
| Item | Spec | Qty | Unit | Total |
|---|
| Synthetic roofing underlayment |
Do NOT use felt under metal — traps moisture; synthetic only; 1 roll covers ~1,000 sq ft; roof area ~195 sq ft |
1 roll |
— |
TBD |
| Item | Spec | Qty | Unit | Total |
|---|
| Black corrugated metal panel — 8' |
2.5' coverage width; 8' length matches rafter exactly (7'2.5" span + 8" tail); run panels front-to-back; 23' coverage needed ÷ 2.5' = 9.2 → 10 panels |
10 |
— |
TBD |
| Self-drilling hex screws w/ neoprene washer |
#10 × 1-1/2"; driven through panel peaks into OSB; ~1 per sq ft = ~200 screws; buy 250-ct box |
1 box |
— |
TBD |
Panels run perpendicular to rafters (front-to-back). Side laps: overlap one full corrugation. Drive screws at panel peaks (not valleys) to prevent leaks. Do not overtighten — neoprene washer should compress slightly, not flatten.
| Item | Spec | Qty | Unit | Total |
|---|
| Eave closure strips (low side — front) |
Foam corrugated profile; closes panel bottom at fascia; 23 LF needed → 10' pieces |
3 pieces |
— |
TBD |
| Ridge closure strips (high side — back wall) |
Same foam corrugated profile; closes panel top where it meets back wall; 23 LF → 10' pieces |
3 pieces |
— |
TBD |
| Butyl tape |
Under panel side laps (9 laps × 8' = ~72 LF) and at penetrations; 50' rolls |
2 rolls |
— |
TBD |
Closure strip profile must match panel corrugation exactly — buy from same supplier as panels. Butyl tape goes under laps before fastening; do not substitute with caulk.
| Item | Spec | Qty | Unit | Total |
|---|
| Eave trim / drip edge (front) |
Directs water off front edge; 23 LF → 10' pieces; match to panel color (black) |
3 pieces |
— |
TBD |
| Rake trim (sides ×2) |
Caps both side edges; 2 × ~8.5' = 17 LF → one 10' piece per side |
2 pieces |
— |
TBD |
| Z-flashing / wall flashing (back/high side) |
Where panel top meets back wall; prevents water infiltration at wall junction; 22 LF → 10' pieces |
3 pieces |
— |
TBD |
Order trim in black or closest matching color to panels. Z-flashing is the most critical water stop — install before panels, lap under siding above.
| Roof Framing | $339.13 |
| Underlayment | TBD |
| Metal Panels + Screws | TBD (~$220–275) |
| Closures & Sealing | TBD (~$85–120) |
| Trim & Flashing | TBD (~$95–130) |
| Total | $739–$864+ |