Solutions to Enable Screw-down Roofs to Expand & Contract

Product Description: “Roof Floater” is specifically designed to enable new screw-down thru-fastened roof panels to be thermally active, providing expansion and contraction. This product is ideal for large building roofs, where a new screw-down/thru-fastened roof is being installed. This system is also ideal for new roof systems that are known to experience excessive thermal movement, such as aluminum, fiberglass, acrylic etc. Hat Channel Part lengths are typically 10’ – 20’ as required, Roof Floater clips are shipped separately.


  Performance Specifications
Testing and Product Approvals

On many Metal-over-Metal retrofit roofing projects, it may suit your budget better to install a new screw-down/direct fastened metal roof in lieu of a standing seam. However, it is important to understand that the use of a screw-down roof is limited by thermal expansion and contraction as well geometry. For existing roofs that are simple gable or mono-slope designs without hips and valleys and with less than 80’-0” panel runs (ridge to eave), use of our standard factory notched Huggers is appropriate. However, for those through fastened roofs with longer panel runs, the new roof will have a significant amount of expansion and contraction and a standard Hugger system may tolerate that amount of movement. Now, you have the option of using our Roof Floater© sub-purlin system.

Roof Floater utilizes a unique thermally active base clip that provides up to 3 inches of movement in the sub-purlin framing system, not the metal roof. Therefore, the entire roof and its sub-framing will expand and contract. Also ideal for other roof materials that are inherent to excessive thermal movement including such as aluminum, reinforced fiberglass panels (FRP) and foam insulation core panels. For new construction wood truss framed buildings that require thermal movement characteristics, Roof Floater’s base clip was designed to be installed directly on the top chord of the trusses. In properly sloped bar joist framing applications Roof Floater will allow the use of through fastened panels in lieu of conventional roofing materials.

The Roof Floater system is available in four different height base clips to allow for thicker insulation to be installed between the existing and new roofs. The continuous 16-gauge hat purlin is manufactured with a height of 1-5/8”.


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A Member of LSI Group, Inc.
Physical Address: 142 Whitaker Rd. Lutz, FL 33549
Mailing Address: P.O. Box 1027 Odessa, FL 33556
Toll Free: 800-771-1711     Direct: 813-909-4424

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