Mechanical Roof Curb Detail

If the roof curb will be mounted on a new building it can be assembled at any convenient location and installed as soon as the roof support members are in place.

Mechanical roof curb detail.

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. Find out why architects building manufacturers general contractors and erectors prefer rcs for our proven solutions. Include a footnote in the mechanical and skylight sections that reads all roof curbs are specified in 07720 curb installation should be a part of the roof deck not on top of insulation or roofing materials. Become familiar with the roof curb installation procedures.

The curb should be furnished with a wood nailer which provides a minimum of 3 inches of nailing surface mounted at the top of the curb to permit mechanical attachment of the flashing material. 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. Roof curbs should be supplied by the hvac manufac turer to the general contractor or building manufacturer and installed by an experienced erector.

This guide does not address roof penetrations. Use tack welding or other suitable fastening. Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer. Heights to be 8 above finished roof deck or as detailed.

Caution should be used when considering the use of. 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. Lines etc will occur through the roof flashing. Roof curb and curb adapter specialists serving north america.

Mechanical contractors should not be asked to supply or install roof curbs for roo fi ng systems. Internally insulated with 1 1 2 thick 3 lbs. Lmcurbs has the capabilities to design roof curbs for the most challenging standing seam roof applications and can correctly match your roof system. A galvalume coated roof doesn t mean that a galvanized steel roof curb is the best thing to use in fact galvanized roof curbs are known to rust corrode and leak particularly along weld joints as soon as a year after installation.

Specify roof curbs in section 07720. Roof curbs for standing seam metal roofs pick the proper material. Through a comprehensive approach combining attention to detail with a constant flow of information rcs provides the most innovative and complete roof curb systems in the industry.