Proper airflow/ventilation is required on steep-slope roof applications. Prior to completion of project documents, the designer should consult with local building officials to determine the code requirements for ventilation.
The removal of water from the roof surface is critical to the success of the roof system and warranty compliance. The most common method of water removal is through interior roof drains.
The most important aspects of curb details are that they are designed at the proper height and there is sufficient termination of the flashing material.
Flashing terminations may be mechanically secured using metal termination bars or by stripping off into a recessed form of a reglet design. However, it is a best practice to follow termination designs that are in accordance with the material manufacturer's recommendations.
A critical and often overlooked design detail is at the termination of a parapet coping at a wall. The most common mistake at this intersection is to allow the metal coping to but up to the wall without the application of termination metal.
A
standard detail on a steep-slope residential roof application involves flashing
at masonry chimneys. Proper detail design is required at this critical
component to provide waterproofing protection.
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