In general, TotalRoof Coatings will adhere to your roof without the need of a primer.
However, there are some situations where you do need to apply a primer to achieve optimal coating performance. Use the table below to determine whether or not you need a primer for your roof:
Substrate |
Primer Recommendation |
| Aged Asphalt | Bleed-Block Primer necessary only to prevent yellowing of coating due to bleed-through. |
| Campers | Apply Single-Ply Primer only if you have poor adhesion. More commonly required on roofs less than 5 years old. |
| Concrete | No primer required. |
| EPDM | Apply EPDM Rinsable primer only if you have poor adhesion. |
| Granulated Cap Sheet | Bleed-Block Primer necessary only to prevent yellowing of coating due to bleed-through. |
| Hypalon | Apply Single-Ply Primer only if you have poor adhesion. More commonly required on roofs less than 5 years old. |
| Metal Roof Panel | No primer required unless you have rust spots, then apply Bleed-Block Primer to rusted areas. |
| Modified Bitumen | Bleed-Block Primer necessary only to prevent yellowing of coating due to bleed-through. |
| PVC | Apply Single-Ply Primer only if you have poor adhesion. More commonly required on roofs less than 5 years old. |
| Silicone Coated Roof | No primer required. |
| Skylight | No primer required. |
| Smooth BUR | Bleed-Block Primer necessary only to prevent yellowing of coating due to bleed-through. |
| SPF | No primer required. |
| TPO | Apply Single-Ply Primer only if you have poor adhesion. More commonly required on roofs less than 5 years old. |