How to Properly Weather-strip a Door with Vinyl and Metal

Image: Mark F. Levisay

If you’re a homeowner or otherwise responsible for paying your utility bills, then chances are the last few years of higher energy costs have taken a bigger bite out of your wallet than you’re used to. Although utility providers and keeping the thermostat lower help keep your budget plan in check, properly sealing windows and doors also helps.

Here’s how to keep your home cozier this winter with weather-stripping.

Weather-stripping or Caulk?

Before you start tapping in weather-stripping over every nook and cranny, check for drafts. The stationary parts of your window — such as around the molding — require caulk. Moveable parts need the flexibility of weather-stripping.

Energy.gov recommends choosing weather-stripping appropriate for climate conditions as well as wear and tear. Rainy climates require vinyl weather-stripping because it holds up well under damp conditions. If water isn’t an issue, metal weather-stripping may stand the test of time.

Creating a Seal

As you apply the stripping to the inside track of the top and sides of the door create a weatherproof seal by pressing the strip firmly against the surface. Vinyl strip application is simpler because it usually comes with a sticky underside and requires basic materials for installation. Metal stripping, on the other hand, must be nailed in place. For the best results, apply stripping to the top and sides of the door, too.

Keep in mind that both vinyl and metal weather-stripping may make it more difficult to shut your door once it’s installed. Don’t forget to use a little extra oomph when you push your door shut, otherwise you could wind up with a bigger draft than when you started.

Things to Remember

Before you run to the store to grab a roll of sticky vinyl stripping, measure how much you’ll need in advance. If you’re on the cusp of needing a new role but suspect you can get along without it, buy it anyway. Chances are it will need replacement in the future and you may make mistakes during installation. Alternatively, you can always return it.

Apply the stripping to clean, dry, smooth surfaces only. Dust, moisture and bumps will reduce or eliminate the seal’s effectiveness. One continuous strip is more effective than several individual pieces.

Finally, don’t forget to add a sweep at the bottom of the door. Because applying weather-stripping on the floor presents a trip hazard but door bottoms are often drafty, screwing in a long rubber or metal sweep works best. Alternatively, a removable door sock works just as well but adds a decorative touch.