Anchoring Flat Roof Membranes Using Ballast Loads

Gravel and roof greening are most commonly used for using loads to secure loosely attached roof membranes. 

 

Advantages of Ballasted Flat Roof Systems

In many cases, roof greening is already part of the development plan. The appearance of the roof surface can be improved by using various materials for this type of anchoring. The load material also protects the roofing membrane from UV rays. 

 

Potential Issues with Ballasted Roofing Systems

On the other hand, however, the structure of the building may be subjected to additional stress from this load. Another risk is that dust can settle between the applied material and the rainwater does not drain away over the years. In the event of a leak, it can be difficult to locate the source, and normally only a complete refurbishment can fix the problem. Even applying the load material can cause issues: damage to the roof's waterproof layer may be caused due to the working equipment used and is not a rare occurrence.