• (RSI) is a specialty engineering firm addressing the design and performance of the building envelope.

    To learn more about us… Click here

  • Our combined experience has given us the skill and knowledge to provide clients with the best professional services that can be provided…

    To learn more about our team… Click here

  • RSI collaborates with owners, architects, building managers, and general contractors to find creative solutions for demanding projects.

    To learn more about our services… Click here

  • From historic cathedrals to modern structures, RSI focuses on providing sound engineering solutions.

    To see some of our projects… Click here

Roof Spec Inc.

Roof Spec Inc. (RSI) is a specialty engineering firm addressing the design and performance of the Building Envelope. We take an integrated approach to designing exterior walls, roofing, and waterproofing systems to seal the entire Building Envelope.

Our focus is to provide unbiased services that facilitate safe, serviceable structures, while bringing added value and maximizing our Client’s experience and success.

To learn more about our services… Click Here.