← Roof (Google Solar)
View proposalQuote aabea210
Generated 6/27/2026, 1:10:56 AM · locked to RÜFI's current engineering standards
Big three — confirm before you bid
Membrane
30,262.05 SF
302.6 squares
Insulation
0 SF
0 squares
Edge metal
823 LF
perimeter
Membrane, insulation, and edge metal are the cost drivers that win or lose the job — confirm these first. Insulation is sold by the square (100 SF): a per-SF price × 100 = the per-square price.
Cost summary (engine base)
| Materials | $52,699.52 |
| Labor | $97,637.54 |
| Non-permit expenses | $12,718.93 |
| Base cost | $163,055.99 |
| Permits (circular) | $4,795.76 |
| Total cost | $167,851.75 |
| Contract value | $239,788.22 |
| Gross profit | $71,936.47 |
| GP % | 30% |
Benchmarks
| Cost / SF | $5.82 |
| Sell / SF | $8.32 |
| Billable rate ($/MH) | $208.75 |
| Combined rate ($/MH) | $130.88 |
| Labor hours | 1148.68 |
| Crew size / days | 5 / 28.72 |
Comparative pricing
Selling price at every gross-profit margin, from this quote's own cost stack. The highlighted row is the current bid — price up or down without re-running the estimate.
| GP margin | Selling price | $ / SF | Billable $/MH |
|---|---|---|---|
| 25% | $223,364.37 | $7.75 | $194.45 |
| 30% · this bid | $239,788.22 | $8.32 | $208.75 |
| 35% | $258,819.03 | $8.98 | $225.32 |
| 40% | $281,131.02 | $9.75 | $244.74 |
| 45% | $307,652.81 | $10.67 | $267.83 |
| 50% | $339,699.98 | $11.79 | $295.73 |
Materials — $52,699.52
| Description | Qty | Unit | Unit cost | Total | Variance | Override |
|---|---|---|---|---|---|---|
New 60-mil mechanically attached EPDM membrane show mathrule: epdm-v1.field.membrane{
"areaSf": 28821,
"wasteFactor": 1.05
} | 30262.05 | SF | $0.80 | $24,209.64 | — | |
Plates and fasteners show mathrule: epdm-v1.field.fasteners{
"areaSf": 28821
} | 28821 | SF | $0.18 | $5,187.78 | — | |
0.5" HD cover board show mathrule: epdm-v1.install.cover-board{
"areaSf": 28821,
"thicknessIn": 0.5
} | 28821 | SF | $0.70 | $20,174.70 | — | |
Edge metal w/ cleat and fasteners show mathrule: epdm-v1.object.edge.metal{
"linearFt": 823
} | 823 | LF | $3.80 | $3,127.40 | — |
Labor — $97,637.54
| Description | Qty | Unit | Unit cost | Total | Variance | Override |
|---|---|---|---|---|---|---|
Install field membrane (28821 SF @ 1.6 MH/100 SF) show mathrule: epdm-v1.field.lay-labor{
"areaSf": 28821,
"mhPer100Sf": 1.6
} | 461.14 | HR | $85.00 | $39,196.56 | — | |
Install cover board (28821 SF @ 0.6 MH/100 SF) show mathrule: epdm-v1.install.cover-board-labor{
"areaSf": 28821,
"mhPer100Sf": 0.6
} | 172.93 | HR | $85.00 | $14,698.71 | — | |
Tear off existing roof (28821 SF @ 1.5 MH/100 SF) show mathrule: epdm-v1.existing.tearoff-labor{
"areaSf": 28821,
"mhPer100Sf": 1.5
} | 432.31 | HR | $85.00 | $36,746.77 | — | |
Install edge metal (823 LF @ 0.1 hr/LF) show mathrule: epdm-v1.object.edge.install-labor{
"hrPerLf": 0.1,
"linearFt": 823
} | 82.3 | HR | $85.00 | $6,995.50 | — |
Expenses — $17,514.69
| Description | Qty | Unit | Unit cost | Total | Variance | Override |
|---|---|---|---|---|---|---|
Freight (3% of material cost) show mathrule: epdm-v1.expense.freight{
"rate": 0.03,
"materialCost": 52699.52
} | 1 | LS | $1,580.99 | $1,580.99 | — | |
Refuse (6 x 30yd dumpster) show mathrule: epdm-v1.expense.refuse{
"dumpsters": 6,
"tearOffSf": 28821,
"perDumpster": 450,
"sfPerDumpster": 5000
} | 1 | LS | $2,700.00 | $2,700.00 | — | |
20-year manufacturer warranty ($0.07/SF) show mathrule: epdm-v1.expense.warranty{
"perSf": 0.07,
"areaSf": 28821
} | 1 | LS | $2,017.47 | $2,017.47 | — | |
Small tools (3% of labor cost) show mathrule: epdm-v1.expense.small-tools{
"rate": 0.03,
"laborCost": 97637.54
} | 1 | LS | $2,929.13 | $2,929.13 | — | |
Sales tax on materials (6.625%) show mathrule: epdm-v1.expense.tax{
"taxRate": 0.06625,
"materialCost": 52699.52
} | 1 | LS | $3,491.34 | $3,491.34 | — | |
Permits (2% of contract value, solved algebraically) show mathrule: epdm-v1.expense.permits{
"baseCost": 163055.99,
"targetGp": 0.3,
"permitRate": 0.02,
"contractValue": 239788.22
} | 1 | LS | $4,795.76 | $4,795.76 | — |