The TopHat Subframe is the industry's most advanced retrofit framing system.
Featuring superior energy efficiency, a stronger structural profile and superior compliance with newly strengthened building codes, TopHat is the unchallenged leader in retrofit metal roofing solutions. The TopHat Subframe is compatible with a variety of standing seam and exposed fastener panels to complete your new roof.


The TopHat Subframe is an economical and efficient way to replace an existing metal roof. By putting a new and improved roof right over your existing roof structure, you achieve lower labor costs and minimal business interruption. The TopHat Subframe member is attached directly to the existing purlin (or to the deflection limiter between existing purlins). Your new roof panel is then attached directly to the TopHat Subframe.