Roof Curb For Ac Unit

Hvac curbs provide structural support for rooftop ac units and other roof mounted equipment.

Roof curb for ac unit.

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 seams joined by continuous water and air tight welds. The bow tie royale 6 cinema contracted commercial usa to install an air conditioning unit on the flat roof of 542 westport ave norwalk ct. Commercial ac manufacturers all have proprietary specs for their curbs. To compliment our curb line canfab has a complete library of seismic calculations and seismic clips addressing the current code for unit to curb isolator to curb vibration isolation curbs and curb to structure method of attachment including wood.

Flat roof curb installation for an air conditioner in connecticut. Curbco builds hvac curbs to suit anymake and model of commercial ac. Specify prefabricated roof curbs and related products by a roof curb manufacturer not with or by the equipment manufacturer. We serve pittsburgh monroeville stamford greenwich and white plains ct.

When a building is constructed prior to the installation of the hvac rooftop unit rtu the roof is cut and a metal structure called a roof curb is installed. Roof curbs should be supplied by the hvac manufac turer to the general contractor or building manufacturer and installed by an experienced erector. They also serve as a location for roof penetration to allow cooled air to flow into the building and return air to flow out. 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. Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer. The curb was supplied by the the heating and cooling company located in norwalk ct. Mechanical contractors should not be asked to supply or install roof curbs for roo fi ng systems.

Install cant strips around the curb. Heights to be 8 above finished roof deck or as detailed. Bring field supplied roofing felt up to the top of the curb nailing strips. Nail felt into place.

Install 2 inch thick boards or rigid insulation around the curb. Canfab roof curbs are built of heavy gauge galvanized steel to ensure equipment support without curb deflection. The curb is secured into place and roofing material is extended all the way up the sides of the curb. To ensure a perfect fit canfab roof curbs are built to the same specifications as the units they are designed for.

Remove any twist within the cu rb due to roof supports and square the curb. Secure the curb to the roof support members. A good penetration requires more than supplying just any roof curb.