How To Flash Vent Pipe With Standing Seam Metal Roof

Flexible to conform to panel profiles.

How to flash vent pipe with standing seam metal roof.

Standing seam metal roofing must be installed on roofs with a minimum pitch of try to lay out roof so that the pipe will fall on. High temperature silicone material and retrofit available. Measure the body of the vent. Allow for thermal movement.

Using the tape measure determine the size of the cut into the roof that will be necessary to insert the vent into the space. Light gauge metal roof and wall panels vent pipe flashing installation procedure. Pipe sizes up to 18 in diameter. High performance for metal roof applications.

Seal with butyl tape beneath base. That s almost 3x the cost. Locate round penetrations centrally in the panel. One of the most challenging flashing applications on metal roofs involves thermal expansion and contraction.

Epdm material protects against weathering. Detail of pipe flashing through a standing seam metal roof click on image to see larger version use unitized epdm rubber pipe flashings black preferred with stainless steel draw band. Remember to allow for the lip on the vent mechanism that will fit over the opening and rest on the surface of the roof. On roofs with slopes as low as 2 12 sliding snow impacting an unprotected pipe can tear the metal roof or shear the pipe off flush with the roof.

For reference at the local metal roofing supply place the price to cover the roof with 36 tuff ribb panels is 2 750 vs 16 standing seam snap lock panels which are 8 015 63. Supplied with appropriate screws and sealant. Evensen recommends cutting the pan at the penetration location installing a flashing and then continuing with the pan to the ridge using an overlapping shingle fashion installation for pipe flashing applications. Instructional video on how to properly install and trim out a square penetration on a standing seam metal roof.

In northern areas vent pipes should be located as high as possible or otherwise protected against sliding ice and snow from above.