Attach counter flashing with fastener through the wooden nailer.
Roof mtd ac curb detail.
Roof curbs for standing seam metal roofs pick the proper material.
Mike tavolacci marked exactly where the curb would be positioned on the roof.
Use tack welding or other suitable fastening method to secure the roof curb in place.
The curb in the video below was installed on an epdm single ply roof membrane.
Roof curbs are support structures for fans and ventilators.
Here is the flat roof curb installation process.
The curb should be furnished with a wood nailer which provides a minimum of 3 5 of nailer surface mounted at the top of the curb to permit mechanical attachment of.
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.
Counter flashing should extend to the bottom of the roof curb drip lip.
If the curb is mounted on the roof deck additional support is necessa ry directly below the curb flanges to minimize vibration.
Typical roof curbs the curb should be structurally capable of supporting intended loads and designed such that drains power lines etc do not penetrate roof fl ashing.
Free shipping see details browse by product model roof curbs.
As a general rule the curb should be placed directly on the roof support members.
Free cad detail download of a prefabricated roof curb to be used in your architectural section cad drawings.
Do not overlap counter flashing over the top of the roof curb.
There are many options available to make sure all building requirements are met.
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.