One primary reason everyday people bear with drafty homes stems from construction costs. Old houses and those with failing exterior wall insulation seem to require costly demolition. The idea that drywall or select wood wall materials require removal and replacement often causes property owners to take a deep breath and think about something else.
The good news is homeowners enjoy increased access to quality insulation materials which may not require wall demolition.
What insulation materials are available?
The two leading materials that generally do not require wall removal are loose-fill cellulose and spray foam. These products task installers with drilling small holes — between ½ and two inches — in strategic locations. Specialized equipment then funnels the material into the exterior walls between the framing studs.
The idea is to pack the vacant spaces with material that deters air penetrations. These are differences to consider between loose cellulose and spray foam materials.
- Loose Cellulose: Properly installed and packed loose cellulose can deliver a higher R-value rating than a good deal of fiberglass batt products. This material may be best suited for older homes with little or no exterior wall insulation, which is largely because it may not push aside impediments such as outdated insulation behind walls. Another criticism of loose cellulose involves "settling." When not tightly packed, gaps can emerge at the top of exterior walls.
- Spray Foam: Injecting spray foam ranks among the viable solutions to reduce or eliminate drafts. This seemingly wet material floods the space between exterior wall studs and can form a firm barrier against air penetrations. Although spray foam also outpaces many fiberglass insulators, it does present a risk. Excessive spray foam funneled into walls can expand, resulting in cracks and bowed walls.
Not every handy DIY homeowner possesses the equipment or experience to effectively install insulation without removing walls, which is why it's essential to work with an experienced professional installer.
How to choose an exterior wall insulation material
Consult with an experienced insulation contractor that uses both materials. Their assessment of the house could prove invaluable in terms of selecting the best option. And, don't hesitate to field multiple quotes before writing a check because installation costs can differ significantly.
About the Author
Hannah Sosinski
I started my career in the real estate industry at the age of sixteen and instantly fell in love.
I worked alongside one of the top producing agents in the country as their administrative assistant for nearly nine years before I took the leap to begin my own journey in the real estate industry.
Working alongside an agent who sells over three hundred houses a year educated me strongly on the Pittsburgh and greater Pittsburgh housing market. While working alongside this agent, I was lucky enough to be involved in several different types of real estate transactions and learned to properly determine home values, many aspects of negotiations and have learned how to close challenging deals while also handling a large amount of deals at the same time.
I have also spent the past seven years working as a property manager throughout Allegheny, Washington and Fayette County. I have managed everything from Section 8 to Luxury units.
Exploring the options of the real estate industry can be overwhelming. While working with me you’re able to sit back and relax as I have worked with many investors, home sellers and buyers and can help guide through the sale or purchase of your home and make it as easy on you as possible.
Whether you’re a first time home owner, downsizing, sizing up, looking to make your first/second or third investment, selling your home, etc. I can use my years of education to help guide you through the purchase or sale of the largest investment of your life.
I look forward to chatting about real estate with you!