Polyurea Waterproofing for Metal Roofs

Metal roofs are lightweight systems that allow rapid installation and can span large structural openings. However, from a waterproofing perspective, they are among the most vulnerable roof types. Fastener points, overlapping sheet joints, ridge details, and thermal expansion movements can all create leaks over time.

Particularly on trapezoidal metal sheet and sandwich panel roofs, localized repairs are often temporary solutions. The problem is rarely the visible surface—it is the integrity of the entire roofing system.

At this point, Polyurea waterproofing for metal roofs provides a long-term solution through its seamless, monolithic coating structure.

Why Do Metal Roofs Develop Leaks?

Metal surfaces are exposed to significant temperature fluctuations throughout the day. This results in:

• Expansion and contraction movements
• Loosening around fastener points
• Openings at overlapping sheet connections
• Seal deterioration and gasket deformation

Traditional bituminous membrane systems cannot accommodate these movements over the long term. Their seams eventually become risk points.

Polyurea, on the other hand, moves together with the substrate thanks to its highly elastic structure.

Advantages of Polyurea Systems on Metal Roofs

Application Process

A systematic approach is followed for metal roof waterproofing projects:

Technical Layer Build-Up

5-Year System Warranty

Our Polyurea waterproofing systems for metal roofs are provided with a 5-year system warranty.

The warranty applies to projects that comply with the application requirements established during the technical assessment process.

Suitable Applications

• Factories and manufacturing facilities
• Warehouse buildings
• Logistics centers
• Commercial buildings
• Industrial metal roofing systems

We provide services throughout Istanbul and surrounding regions with professional equipment and experienced application teams.

A System Solution Instead of Temporary Repairs

Recurring leaks on metal roofs usually originate from critical detail areas and spread across the roof surface over time. Silicone sealants and repair tapes typically provide only short-term results.

Polyurea waterproofing protects the entire roof structure with a seamless coating system, delivering long-term performance and reliability.

Request a Technical Assessment

If your metal roof experiences:

• Leaks around fastener points
• Openings at overlapping sheet connections
• Deterioration of existing membrane systems
• Recurring water infiltration problems

avoid making decisions before a proper system assessment has been completed.