Transition Roof Curb

The left and right transition sections reduce the height while the center transition section provides the opening.

Transition roof curb.

Our curbs allow for quick and cost effective unit replacements. Instead coordinating the curb size with the rib spacing to provide a rib to rib curb eliminates fasteners down both sides of the curb in the pan of the roof panels. Curb dimensions and configuration are built to meet any skylight or rooftop equipment requirements. 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.

The building owner is faced with one of two decisions remove the unit and the existing unit s roof curb install a new curb transition the duct work to attach to the new curb and set the new rtu in place. Pitch correction to match roof slope as specified. Specify prefabricated roof curbs and related products by a roof curb manufacturer not with or by the equipment manufacturer. To allow the transition from a full height curb to the appropriate level needed for an entrance or drive 3 special shapes are manufactured.

Seam to seam r s seam clip side flanges come standard for a complete weather tight seal. Roof curbs may include a custom finish that matches the roof color. Economical flat flange models are also available. Placing the curb on and attaching it to the ribs also allows better transitioning from under the roofing on the upslope end to cover the roof on the downslope end.

This decision inherently causes significant downtime and expense to remove the existing curb and re roofing a new one not excluding the risk of creating a roof leak. Center transitions can be used in multiples to allow any size driveway width. The best alternative is a curb adapter.