Neighborhood Info Without The Neighborhood Drama. Learn more

How to Caulk Wide Cracks

Published On

December 16, 2024

Why You Can Trust Us

Today’s Homeowner exists to help you maintain or improve your home safely and effectively. We uphold strict editorial standards and carefully vet the advice and resources referenced in our articles. Click below to learn more about our review process and how we earn money.

Learn More

One of the best ways to save energy in your home is by caulking any cracks around windows and doors. While caulk alone can be applied to narrow cracks, gaps wider than 1/4” should be filled with foam backer rod first.

These flexible foam tubes are available at building supply stores in several diameters. Simply push the rod into the gap with a putty knife or painter’s tool until it is just below the surface then caulk over it.

Explore our article to gain more insight into the techniques for sealing cracks with caulk.

Watch the video above to find out more.

Editorial Contributors

Mitchell Layton is a former professional mover who currently lives in Philadelphia, Pennsylvania. Mitchell spent years packing and moving for REAL Rock N Roll Movers, a commercial and residential moving company based in Los Angeles that’s primarily staffed with up-and-coming musicians. That gave him plenty of experience navigating box trucks up and down the winding streets of LA. In addition to moving hundreds of happy customers into new homes and apartments all across Southern California, Mitchell has also performed corporate moves on company lots for Nickelodeon, Warner Bros, Universal Studios, Paramount, and more. After pouring blood, sweat, and tears into his profession, Mitchell has all the helpful tips you need for your next move.