Four Reasons Why You Should Caulk and Seal Your House

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Caulk is your best friend when it comes to home maintenance.  It seals your home from unwanted moisture, insects, energy loss and much more.

Here are my top four reasons to caulk:

  1. Reduce moisture and mold in your house by sealing around sinks, faucets, bathtubs, and exterior doors;
  2. Prevent air leaks and energy loss by sealing around windows and doors;
  3. Sealing keeps your home cleaner and less susceptible to pollutants, allergens and dust; and
  4. Reduce the possibility of insects entering your house.

That part about insects was upsetting so off I went to Smith’s Ace Hardware on Northside Parkway where I knew I could get a quick lesson and the necessary product to begin my project.

This is just the caulk aisle at Smith’s Ace Hardware. Imagine how overwhelming it would be at Home Depot!

caulk isle

Here is my patient teacher, Phil who navigated the various varieties of caulk to select the ones on needed.


There are so many distractions in my family: work, golf, sports viewing and Amazon Prime Video, so I will understand if you ask your handyman to take care of this.

Your Three Major Areas to Caulk:

  • Reseal the areas in the kitchen behind the sink between the counter top and the back splash to prevent water getting in the space there;
  • Reseal the areas around the bathtub, again to prevent moisture from getting on the subfloor or behind the wall; and
  • Caulk around the windows in a room where humidity runs high and we tend to get bugs which is completely not an option with me.

This is the basic moisture barrier caulk to buy. I even bought a new caulk gun.

caulk and gun

This is paintable caulk which is not silicone-base

You will follow six easy steps:

  1. Clean and dry the area you wish to seal. Use rubbing alcohol in kitchens and bathrooms applied with a cotton ball. A damp cloth can be used in other areas.
  2. Prepare the area with painter’s or masking tape along the edges of the bead area.
  3. Cut a very small hole in the nozzle at a 45 degree angle. You want the hole to be the size of the bead you will be making. It’s best to start small as you can always make the hole larger.
  4. Insert the caulk into the caulk gun and begin applying with consistent pressure to make your bead. Keep the tube moving. Don’t stop.
  5. Use your finger, dipped in a disposable bowl of water to smooth out the bead. Do this immediately. Remove the tape slowly after smoothing.
  6. Close the caulk tube for storage. Wipe off excess caulk from your hands with a dry cloth before washing them. To clean the area around the caulk use mineral spirits or alcohol for silicone caulk, soap and water for paintable caulk.

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