Why Do You Need A Curb At Flat Roof

Have you ever wondered why contractors install gravel on flat roofs.

Why do you need a curb at flat roof.

In either case a curb should be double walled and insulated to help retain heat in the home. Gravel is used on flat roofs for two reasons. Otw shortcode content toggle title flat roof curb installation video transcription opened closed icon type general foundicon plus hi i m erik from commercial roof usa and today they called us to do this commercial roof it s an epdm roof and they called us because they need us to flash a 10 ton a c unit now this needs more than just flashing done this roof is. The primary function of the curb is to keep weather out while supporting flashing the equipment on it.

To weigh down or secure the roofing material as is the case with single ply flat roofs. There are different types and weights of. Old thread but i ve recently bumped up against this problem and my solution for a flat curb was to use a bit of roof sketched to the required size raised 6 minimum above the main minimally slope roof then to use the join geometry tool to remove the excess curb at its intersection with the main roof. Warm air rises and will naturally collect in your home beneath the roof.

The national roofing contractors association recommends using curbs that are tall enough to allow for a minimum of 4 inches of vertical flashing on all sides. To protect the underlying layer of roofing materials as is the case with built up roofs burs. The following are typical curb styles used with york solution roof mounted outdoor units. Flat curbs see figure 7 curb heights vary in increments of 4 00 from 14 00 to 34 00.

You could say that everyone who makes equipment for roof mounting is in the curb business as well but with many companies their focus in not the roof s integrity but rather the support of their equipment.