Provide curb types as follows: 1. Additionally, we take the responsibility to properly coordinate your … As a point for reference, the rooftop unit has a front, rear, left, right, top, and bottom sides. HVAC Curb Systems. Helpful Hints. Problems with different kinds of roof decks, insulation factors, and pitches are not considered in their designs, as evidenced in their typical roof curb details. is shown on the roof curb and unit detail drawings. Prefabricated roof curbs have been in use since the roof has been utilized for something other than keeping weather out. The cross braces must be in- F.HVAC unit curbs: Label curbs with "FRONT" designating the curb orientation to the front of store prior to shipment. Seal (to curbing): When setting the unit onto the curb, the installer should ensure that a sealing material is positioned between the unit and curb to provide a continuous watertight connection. Although RCS does not provide HVAC rooftop units, we are experts in the field and proudly provide the most critical component - the Roof Curb System™ that is designed to properly support the weight of the unit and keep the water on the outside of the building where it belongs. Roof Top Unit (RTU) Curbs: Provide 14 gauge minimum steel sheet curb sections. This effort I'm involved in is a replacement of an existing make-up air AHU (roof mounted) where the mechanical contractor will re-use the existing roof curb. Frame duct openings with 18 gauge curb sections level with perimeter curb sections, minimum height 18". The 14" roof curb fits all 3-6 ton DCC, DCG, DCH, DSC, DSG, and DSH Daikin packaged units. See Figure 1 on page 4. And in this one sentence lie the benefits and the detriments we face in the roof curb business everyday. The roof curb is designed to support the weight of the unit, and to offer a means for contractors to connect the supply & return air duct work. Affordable, easy-to-install, all-in-one roof curb and vibration isolation rail for under 20-ton packaged rooftop units. 2. Improper curb design of rooftop HVAC units, exhaust fans, and self-finishing skylights curbs are the main reasons for most roof … RTU can be mounted immediately after the Vibro-Curb III ™ is installed and roofing can be completed at a later date without disturbing the RTU. The primary function of the curb is to keep weather out while supporting/flashing the equipment on it. This process will reduce installation costs and expedites the installation process. KSR 2.0 Vibration Isolation Rail BACnet® Module Kits used with Landmark and Raider A-Box Units (16X70, 16X71, 16X72, and 17A08) used with Commercial Rooftop and Split System Units Building Controller (BC) for L Connection® Network (17M12) Units should not be moved over a roof membrane but should in some manner be lifted from the ground onto the curb or support framework. Roof curbs are designed to support the unit, preventing rain from entering the building, and and offer a way for a contractor to connect the system to the building's duct work system. Heavy-duty, complete roof curb and vibration isolation rail for over 20-ton packaged rooftop units. The roof curb must be square and level prior to set-ting equipment. The Curb is secured into place, and roofing material is extended all the way up the sides of the curb. Vibration Isolation Roof Curb and Rail. The factory provides cross braces as required of each unit. Specify prefab roof curbs for use with all roof penetrations and roof mounted equipment including, and not limited to, HVAC units, duct openings, pipe penetrations, power roof exhauster, intake and relief vents, flues, or job … KSCR Roof Curb and Vibration Isolation Rail. Specify prefabricated roof curbs and related products by a roof curb manufacturer (not with, or by, the equipment manufacturer). Vibro-Curb III ™ incorporate adjustable spring isolators and can ship as a single piece unit. FULLY FOLLOWED.