How to Install a Vent in Sheet Metal Roofing

Sheet metal roofing.
  • 10-20 hours
  • Advanced
  • 500-2,000
What You'll Need
Roof vent
Tape measure
Marker or chalk line
Skill saw, jig saw or reciprocating saw
Tar or roofing cement
Tar brush
Dust mask
Roofing nails
Utility knife

Sheet metal roofing is a roof that is made out of metal; it is very durable and long-lasting however it can get very hot inside the room during the summers. These roofs can withstand fire, snow, wind, and other natural and unnatural calamities. It is lightweight and also portable and cost-effective. If given the right treatments like the anti-rust treatment, waterproofing treatment, or even heat-reflective treatment can make the roof stay for a much longer time. By installing a vent on the roof, it helps in the circulation of air in the attic or roof space.

You will find different types of vents in the marketplace. You have to choose a vent with the proper ventilation system. A proper ventilation system has an intake vent as well as an exhaust vent. The intake vent lets in fresh air into the roof space while the exhaust vent allows air to escape from the roof space. Here is the right way to install a vent in sheet metal roofing.

Step 1 - Decide on Vent Type

Decide what type of vent will best suit the roof. This is important so that you can get the roof vent that you would like.

Step 2 - Decide on Placement

See where you would like to place the vent based on the type of vent you would like to put on the roof. There are different types of vents that require different space and specifications.

Step 3 - Measure the Area

Measure the length and width with a tape on the marked area, note it down.

Step 4 - Mark the Area

Using chalk or a marker, mark the area on the roof where the vent is going to be placed.

Step 5 - Draw an outline

Draw a rough outline of the vent by connecting all the marked points.

Step 6 - Cut the Roof

With the skill saw, jig saw, or reciprocating saw cut the roof using the outline as a guide until the hole is completely formed.

Step 7 - Apply a Layer of Tar

Use the tar brush and apply a layer of tar or roofing cement very carefully making sure that any rough edges are covered properly.

Step 8 - Place the Vent

Place the vent in position and drill holes with a drill and secure the vent with the use of roofing screws by tightening them with a screwdriver.

Step 9 - Fill Any Space

Apply another layer of tar for any open spaces after placing the vent and make sure that it is secured properly, this time covering any open edges that are there to make sure that it is secured properly.

Step 10 - Seal the Underside of the Attic

Apply a layer of tar on the underside of the attic to make sure that no spaces are left from inside, check to see if there are any open areas.