We Sell Ballast Blocks
High-Performance Ballast Blocks for Solar Installers
NRP supplies solar ballast blocks to support solar companies and installers working on flat and low-slope roofs. Our solar ballasts are ideal for non-penetrating racking systems, offering a secure, code-compliant method of anchoring panels without compromising roof integrity.
Engineered for durability and performance, NRP ballast blocks help stabilize your solar array while minimizing rooftop damage and long-term maintenance concerns. Whether you're managing a new commercial solar installation or upgrading an existing system, we deliver the quality and consistency solar professionals rely on, job after job.
Solar Ballast Block Specifications
| Dimensions |
Half Block |
Full Block |
| Width |
8" |
8" |
| Height |
2" |
4" |
| Length |
16" |
16" |
Our ballast blocks are made from high-strength concrete to ensure maximum durability and performance. They are built to withstand moisture infiltration, extreme temperatures, and freeze/thaw cycles, making them ideal for long-term rooftop use. All NRP-supplied solar ballast blocks meet or exceed ASTM C-1491 and ASTM C-1884 standards for strength, density, and moisture resistance.
Rooftop Consulting for Solar Ballast Blocks
NRP partners with solar installers to ensure ballast block systems are compatible with commercial roof conditions. We help avoid costly issues by offering expert guidance on block placement, load distribution, and membrane protection.
We’re here to help your solar installation go smoothly—on time, on budget, and rooftop-ready.