| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when was metal roofing invented | 1.78 | 0.6 | 9517 | 93 |
| what year was metal roofing invented | 0.32 | 0.5 | 7199 | 37 |
| when was corrugated metal roofing invented | 1.53 | 0.8 | 2878 | 3 |
| when did metal roofs start | 1.59 | 0.7 | 7223 | 82 |
| when was roof invented | 1.64 | 0.3 | 2390 | 75 |
| how long have metal roofs been around | 1.94 | 0.4 | 9189 | 53 |
| metal roof background history | 0.21 | 0.3 | 6002 | 17 |
| history of roofing materials | 1.42 | 1 | 5070 | 85 |
| the history of roofing | 1.16 | 0.6 | 7221 | 44 |
| who makes metal roofing | 0.38 | 0.4 | 1101 | 54 |
| vintage metal roofing for sale | 0.67 | 0.7 | 3280 | 68 |
| old metal roofing for sale | 1.5 | 1 | 6984 | 71 |
| old style metal roofing | 1.63 | 0.5 | 1609 | 66 |
| when was my roof installed | 1.98 | 1 | 3537 | 19 |
| what is metal roofing | 1.21 | 0.2 | 2420 | 29 |
| when were roof shingles invented | 0.11 | 0.3 | 2382 | 70 |
| who installs metal roofs | 1.04 | 0.4 | 2226 | 59 |
| historic metal roof shingles | 1.61 | 0.1 | 4804 | 37 |
