George Bush International Airport Technical Service Warehouse

Roof Hugger, LLC

A proposed roofing tear-off of the George Bush International Technical Service Warehouse, as a result of Hurricane Ike, led to the specification of the Roof Hugger sub-framing system using a new trapezoidal standing seam roof.

In lieu of tearing off the old metal roof, the Roof Hugger metal-over-metal system was chosen, saving much time and money. The new 18-inch wide by 3-inch high rib roof system was fastened to Roof Hugger’s pre-notched patented sub-purlins.

Existing purlins were spaced at 5’-0” on center, which was not adequate - except for in the field of the roof - to satisfy newly adopted building code requirements. Additional sub-framing struts spaced at 2’-0” on center had to be installed at the ¼:12 existing roof’s corner and edge zones - for 15-feet from the eave, ridge and rakes - to satisfy the new IBC 2006 building code wind speed of 130 MPH.  The original building’s 1980 design criteria was based on the Uniform Building Code with a 100 MPH.

The 99,000 square foot re-roofing project was completed in 40 days from mobilization to completion.

The principal contractor was Paramount Metal Systems.

About Roof Hugger

roof hugger logoRoof Hugger notched sub-purlins enable replacement of new metal roof panels over an old metal roof. They can be used over screw-down or standing seam roof systems and can accommodate new standing seam or screw-down panels. Roof Huggers also maintain integrity of original design loadings; achieve "thermal break" air space between old and new roof sheets; allow for optional insulation; and are laboratory and load tested—with certified load charts. For more information on metal-over-metal retrofit re-roofing, contact Roof Hugger at 800-771-1711 or visit

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