Tightening Your Home: An Easy Guide to CaulkIs it time to seal the air leaks around your Arizona home? Picking out what caulk you use depends on the your air sealing job at hand. While it’s tempting to assume otherwise, not every caulk is perfect for every situation. By choosing the right caulking component for the right job, you can create a long-lasting seal that contributes to a well-sealed home with reduced energy bills. For help in navigating the many different sealant compounds available to homeowners, we have assembled this simple guide to caulk. Silicone

There are two types of silicone caulking compounds: household and construction. Household silicone is great for sealing joints between bath and kitchen tiles and fixtures. It is flexible and can be cleaned up with a dry cloth. Construction silicone is similarly flexible, but is best used to seal dissimilar materials, such as metal flashing, brick, wood and stone.

Polyurethane, Expandable Spray Foam

This compound is the best one in our guide to caulk for sealing the larger cracks and gaps in and outside your home. Spray foam provides an excellent adhesive, quickly expanding to fill larger and more irregular gaps. However, it works best in nonfrictionareas.

Water-Based Foam Sealant

This is a great choice for the more environmentally conscious as this caulk does not produce greenhouse gasses during production. You can use it to seal around your window and door frames. It is not useful for sealing larger gaps and should be used mostly in newly constructed areas.

Butyl Rubber

The most durable material in our guide to caulk, butyl rubber can last for 10 years or more. Use this caulking compound to seal dissimilar materials such as glass, wood, plastic, metal and concrete. It’s also great for sealing around windows and metal flashing, and for bonding loose rooftop shingles. Be careful when cleaning up, it’s toxic and you should strictly follow any manufacturer precautions.

For more information about this guide to caulk, or to learn about other energy-saving HVAC products and solutions, contact our local experts at Wolff Mechanical. We serve the Phoenix and Scottsdale areas.

Our goal is to help educate our customers in the Phoenix Valley area of Arizona about energy and home comfort issues (specific to HVAC systems). 

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