Mechanical Unit Roof Curb Detail

A minimum of one cross brace will be provided with each curb.

Mechanical unit roof curb detail.

Duct support 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. Top of all roof curbs shall be level with pitch built into curb when deck slopes. Specify prefabricated roof curbs and related products by a roof curb manufacturer not with or by the equipment manufacturer.

See figure 6 3. 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. Pre fabricated fully assembled roof curbs will reduce installation time and costs by ensuring compatibility between the rooftop unit curb and roof openings. Roof curb must be square level prior to setting equipment.

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. And in this one sentence lie the benefits and the detriments we face in the roof curb business everyday. Unit curb orientation is critical. Allowing the highs to fit under the roof panel on the upslope and over the roof panel on the downslope to create a continuous water flow is critical to the function of the roof curb.

Roof curb and curb adapter specialists serving north america. 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. Heights to be 8 above finished roof deck or as detailed. Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer.

The air flow insignia is shown on curb and unit detail drawings. Lmcurbs has the capabilities to design roof curbs for the most challenging standing seam roof applications and can correctly match your roof system. See fi gure 6. Internally insulated with 1 1 2 thick 3 lbs.

Electric conductivity water panel controller. The slightest inefficiency or mismatch in design or engineering can create blow back. Refer to figure 17 and tables 1 and 2 for specific center of gravity corner weight information and accessory weights. 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 fabricated items.

Constant volume mixed air unit point identification. Electric water heater non circulating piping. Units may be set either lateral or. Duct thru roof detail.

Dual steam control valve assembly. Do not cut out the entire roof deck within the curb area. Condensate drain piping diagram draw thru unit detail. As a point for reference the york solution unit has a front rear left right and top and bottom sides.