External Curbs For Condenser Units On Roof

Unit and curb orientation typical curb styles the following are typical curb styles used with rooftop units.

External curbs for condenser units on roof. Roof support the roof must be capable of adequately supporting the weight of the rooftop unit as well as that of the curb. Specifications prefabricated roof curb to be manufactured of prime galvanized steel construction 20 18 16 or 14 gauge as required meeting astm a653 653m with welded corners and with. These packaged air conditioners deliver performance for various ranges of industrial applications. Allison main joined the pate company as a sales engineer on june 8 2020.

This 30 x 10 x 8 18 000 pound hvac unit was attached to its curb with 16 straps one screw per strap. This gooseneck was attached with only two small screws. Roof curbs should be supplied by the hvac manufac turer to the general contractor or building manufacturer and installed by an experienced erector. Roof curb and curb adapter specialists serving north america.

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. Before joining pate allison gained valuable experience during her five years with ferguson hvac. Pre fabricated fully assembled roof curbs will reduce installation time and costs by ensuring compatibility between the rooftop unit curb and roof openings. Instructions supplied with the unit curb.

A substantial amount of water was able to enter the building during the hurricane. When you install adapter curbs welded rtu rooftop unit curbs or equipment supports for your rooftop hvac package unit going with the wrong curb adapter company can cost you big money and time. We offer a wide array of hvac curbs custom designed curbs and related services serving the gulf coast region and beyond. 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.

This guide does not address roof penetrations. Flat curbs see figure 2. Condenser ld08205 figure 1. Refer to figure 17 and tables 1 and 2 for specific center of gravity corner weight information and accessory weights.

Rooftop attachment of lightning protection systems in high wind regions. Mechanical contractors should not be asked to supply or install roof curbs for roo fi ng systems. Curb dimensions and material vary depending on unit size and options. Do not cut out the entire roof deck within the curb area.

Allison earned her b s. Refer to the factory roof curb drawing provided with the unit for specific curb in formation.