How to Install Storm Collar Flashing

Written by bob white
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How to Install Storm Collar Flashing
A storm collar flashing protects your house from moisture penitration. (Hemera Technologies/ Images)

The roof is your home's first line of defence against moisture penetration. Its weakest points are the roof penetrations from plumbing and gas appliance vents. These are protected by overlapping layers of flashing that direct the water down the slope. Storm collar flashing provides a second line of defence for the point where the vent penetrates the flashing. Installing one to a new or existing vent is a simple process you can do with a screwdriver and your hands.

Skill level:
Moderately Easy

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Things you need

  • Screwdriver

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  1. 1

    Open the rubber wrap and guide it around the vent.

  2. 2

    Open the rubber skirt and install around the vent below the rubber wrap.

  3. 3

    Clasp together the two hooks on the skirt, making it continuous around the vent.

  4. 4

    Push the skirt tabs into the plug slots from the bottom.

  5. 5

    Slide the storm collar down onto the top of the vent flashing.

  6. 6

    Wrap the stainless steel clamp around the plug and tighten with a screwdriver.

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