Mechanical Unit Roof Curb Detail

Unit curb orientation is critical.

Mechanical unit roof curb detail.

The air flow insignia is shown on curb and unit detail drawings. 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. Duct support on roof. 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.

Electric conductivity water panel controller. Do not cut out the entire roof deck within the curb area. Specify prefabricated roof curbs and related products by a roof curb manufacturer not with or by the equipment manufacturer. A minimum of one cross brace will be provided with each curb.

Roof support the roof must be capable of adequately supporting the weight of the rooftop unit as well as that of the curb. Prefabricated roof curbs have been in use since the roof has been utilized for something other than keeping weather out. As a point for reference the york solution unit has a front rear left right and top and bottom sides. The primary function of the curb is to keep weather out while supporting flashing the equipment on it.

Roof curb and curb adapter specialists serving north america. Duct thru roof detail. Lmcurbs has the capabilities to design roof curbs for the most challenging standing seam roof applications and can correctly match your roof system. A roof membrane but should in some manner be lifted from the ground onto the curb or support framework.

Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer. Electric water heater non circulating piping. Heights to be 8 above finished roof deck or as detailed. See figure 6 3.

Condensate drain piping diagram draw thru unit detail. And in this one sentence lie the benefits and the detriments we face in the roof curb business everyday. Internally insulated with 1 1 2 thick 3 lbs. See fi gure 6.

Constant volume mixed air unit point identification. Dual steam control valve assembly. Refer to figure 17 and tables 1 and 2 for specific center of gravity corner weight information and accessory weights. Units may be set either lateral or.

Roof curb must be square level prior to setting equipment. 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. 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. 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.