Place the vent cap over the hole so that its top rests on the high point of the siding.
Installing dryer vent through vinyl siding.
The best scenario would have been to buy a dryer vent that is made to work with vinyl siding like this one.
Use wood screws to attach the hood to the siding.
If you are installing a dryer vent through a finished wall.
Cellwood white hooded dryer vent dryerhd04h at the home depot to use the one you already purchased you would want to buy a 2 piece vinyl mounting block.
The first is to install a vinyl surface mounting block shown here that fits over the existing siding.
How to mount a vent cap on vinyl siding.
Cut a hole in the siding with a diameter of 4 25 inches by using a hole saw.
You may need to scribe and trim the edges to precisely fit your siding profile.
The challenge is to cut a hole an 4 inch hole without dama.
Installing a dryer vent through vinyl siding can be a troublesome task but a fairly simple one basically when damp clothes are put in the dryer a small blower briskly funnels air through a duct and out of your home.
If the hole is a little high or low measure the distance from the pilot hole to the center of the vent cap duct.
Avoid using metal screws on the vent since these screws will catch lint.
Install dryer vent through wall siding a new dryer vent should be installed on a vinyl siding.