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Roofing Assessments

Sealant Assessment and Design

Window and Curtain Wall Assessment and Design

Different technologies require different expertise...

Window and curtain wall systems must be designed for controlled water entry, minimal air leakage, easy operation, and structural loads from wind. Most window and curtain wall failures involve leaks. Many of those systems that were designed and tested lose their ability to perform after several years due to degradation of seals or movement of the structure causing seals to fail. Some were just not designed right to start with.

Staff at GRG have consulted on the curtain walls of some of Canada's largest structures, as well as on residential windows. We have designed and performed testing of high-performance curtain wall systems for new office complexes and performed on-site testing of residential windows. Staff also participate on CSA window standard committees. This broad range of expertise allows us to scale our services to the problem at hand.