Uploaded December 2025 | Updated September 2026, 1 hour ago
Choosing the right waterproofing membrane is the single most important decision for a long-lasting flat roof. In this video, we break down what we consider to be the best flat roof membranes. We dive into the advantages of monolithic fluid-applied membranes and the performance of fully adhered systems, including KEE membranes, while also reviewing modified bitumen options. We discuss some of the finer details for long term durability, including the importance of having a uniform thickness and proper substrate compatibility.
*Get the Flat Roof Design Guides and CAD Details* : asiri-designs.com/shop
*Request Building Science Consulting Services For Your Project:* asiri-designs.com/consulting
*Other Flat Roof Articles and Resources* : asiri-designs.com/resources-1?blogcategory=Flat+Roofs
Choosing the right waterproofing membrane is the single most important decision for a long-lasting flat roof. In this video, we break down what we consider to be the best flat roof membranes. We dive into the advantages of monolithic fluid-applied membranes and the performance of fully adhered systems, including KEE membranes, while also reviewing modified bitumen options. We discuss some of the finer details for long term durability, including the importance of having a uniform thickness and proper substrate compatibility.
*Get the Flat Roof Design Guides and CAD Details* : asiri-designs.com/shop
*Request Building Science Consulting Services For Your Project:* asiri-designs.com/consulting
*Other Flat Roof Articles and Resources* : asiri-designs.com/resources-1?blogcategory=Flat+Roofs










