Convenient access to the I-25 corridor and our 35-acre facility allows us the space to maintain large quantities of a diverse inventory. So, solar panel manufacturers or installers, alike can benefit from St. Vrain Block's wide range of sizes and weights of quality Solar Ballast Block.

We have been ASTM International Certified serving the Colorado and Rocky Mountain Front Range manufacturing quality concrete block products since 1934. Our products surpass the requirements of ASTM C1491 for compressive strength, density and absorption. They also exceed the ASTM C1262 requirements for freeze/thaw durability.

For assistance with quotes and additional information on our Solar ballast block please contact us

Solar Ballast Block

solar ballast block

As solar power has become a modern solution to the quest for energy the need for Solar Ballast Block products has emerged. St. Vrain Block is excited to introduce our ASTM International Certified Solar Ballast Block product line.

Solar panels in zero-penetration, flat-roof applications require ballast weight to secure the panel to the roof. Applications include flat roofs when non-penetrating options are preferred. Solar ballast block provides the dispersion of point loads without the need for penetrating roofing materials.

This is a critical common factor in Colorado and surrounding states' where the tendency for high wind areas and above average snowfall abound.

We manufacture several sizes and weights of products that are specifically designed for the strict quality requirements of the solar panel industry.

solar panels block

High compressive strength and density combined with low absorption are important to the long-term durability of the concrete. Lower-quality concrete can deteriorate in under a decade due to the aggressive freeze/thaw environment that the roofs and the ballasts create.

astm international logo

We are the preferred supplier for many solar panel installers and manufacturers throughout the entire Western United States. We supply the entire Rocky Mountain Front Range from Montana to New Mexico including the Nebraska and Kansas heartland as well as the entire Pacific coastal region.

pavers patio stones retaining wall blocks      

Please contact us with any special order requests or questions.

The Reference Library

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Below are some of the most commonly requested documents, brochures and information. Let us know if you have a special request!

Product Brochures

We are continually updating our brochures, listed below. So contact us or check back often to see the latest!

Quantity Estimates

Each project has unique characteristics or challenges. Using your measurements, we will provide an estimate of product quantity necessary for your project. Call us at 303-833-4144 or contact us online with your request.

Installation Tips

We can recommend various Landscape Professionals or, if you are the 'Do-It-Yourself' type, we provide these helpful installation instructions.

~ more install tips coming soon

Glossary of Terms

Every industry has quirky terms that can be confusing especially if the product names sound alike, but are actually not comparable at all in quality or intended use. Contact us if you have any questions.

Glossary of Terms

ASTM Certifications

The ASTM International Standards Certifications awarded to St. Vrain Block are held in very high regard. Quality has been the foundation of our reputation since 1946. Please review our ASTM Certifications page for more information.