ThyCurb Vibro-Curb II The Vibro-Curb II incorporates adjustable spring isolators and a roof curb into a single unit. The vibration eliminating portion of the Vibro-Curb II is constructed of structural steel and it's designed to match the bottom of the rooftop unit. Typical fabrication time is only 7 to 14 days. The rooftop unit can be mounted immediately after the curb is installed and roofing can be completed at a later date without disturbing the unit. This reduces the additional crane or helicopter expenses. New, flexible 8" counterflashing provides a weather seal and easy access to the spring isolators for adjustment or replacement. This eliminates having to roof around spring access ports. The isolators are custom sized and spaced to accommodate the roof-top's weight and center of gravity for a minimum 90% isolation efficiency. Vibro-Curb II features a 2" x 2" wood nailer for attaching roofing felts. Standard height is 21" with options for different heights and the Vibro-Curb II can be fabricated to match specific roof pitch. The unit may be factory assembled and shipped in one piece... or shipped in a limited number of sub-assemblies. Specifications The designated contractor shall supply and install a "Vibro-Curb II," factory-fabricated
combination roof mounting curb and vibration eliminator base as manufactured
by ThyBar Corporation. Base shall be designed so that it can be re-roofed without
disturbing the rooftop unit. The vibration eliminating portion of the assembly
shall be constructed of structural steel and designed to match perfectly the
bottom of the rooftop unit. The vibration eliminators shall be so designed to
provide a minimum of 90% isolation efficiency with 1" deflection. The roof
curb shall be supplied complete with wood nailing strip and continuous 8" rubber
counterflashing making the "Vibro-Curb II" unit water tight.
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