Cracks and gaps on the outside of your home cause air infiltration that increases the heating and cooling cost of your home as well as wasting energy. Since approximately one-third of a home’s air infiltration comes from small openings in walls, windows, ceilings, and doors; it’s important to locate and properly seal these gaps.

To caulk cracks on the outside of your home:

  1. Use a putty knife to scrape out any old caulk from the opening.
  2. Wipe off the crack with a rag to remove any dust.
  3. Apply a bead of quality exterior caulk to fill the gap.
  4. Smooth the bead of caulk with your finger, removing any excess caulk.

Watch this video to find out more.

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1 COMMENT

  1. Found mouse urine and droppings behind the bathroom walls. I tore out drywall and insulation saturated with urine. Added bleach then vinegar and then lavender oil. Found gap 2” x 12” . Do I close the gap with wood from inside or outside? Do I chaulk where siding meets foundation on outside? All these years I smelled urine but I would just scrub the toilet with Clorox . I also blamed the cats. MF mice 🐁. Help

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