Waterproofing & Green Roofs in Minnesota
Single Ply Membranes
Single Ply Membranes are leak-proof, energy-efficient, weather resistant, and low-maintenance. Berwald works with a number of manufacturers to offer a variety of membranes to meet your waterproofing needs.Hot Fluid Applied

- Carlisle
- HydroTech
- Sarnafil
- Barrett
Green Roof
For a truly eco-conscious roofing solution, plant a green roof. There are two options for a green roof system. A green roof system is an extension of the existing roof. The first system involves a high quality waterproofing and root repellent system, a drainage system, filter cloth, a lightweight growing medium and plants. The second system includes pre-planted trays filled with a lightweight growing medium and plants professional installed over a variety of new and existing roof systems including waterproofing, single-ply, or built-up. Benefits of green roofs are energy efficiency, longer lifespan of materials, sound insulation, aesthetic appeal, and minimized storm water run-off. All of these benefits can save you money in the lifespan of your building.
We work with the following manufacturers for Green Roof projects.
- Carlisle
- HydroTech
- GreenGrid
- LifeRoof