The two types of insulation commonly found in crawl spaces are fiberglass and spray foam.
Crawl space wall should be insulated with a non-water sensitive insulation that will work to prevent interior air from making contact with the cold basement surfaces, according to the Building Science Corporation. Allowing that interior air that is normally full of moisture can cause condensation and promote mold and mildew growth.
Many homeowners can reduce energy bills just by adding or updating the insulation in their homes. Many older homes have little to no insulation compared to homes built today, so adding insulation can pay for itself in just a few years, according to the U.S. Department of Energy. This includes the crawl space, which is responsible for cold floors and pesky drafts.
RetroFoam of Michigan has more than 15 years of experience insulating thousands of homes across the lower peninsula. Our experience is installing spray and injection foam insulation, but we also know quite a bit about fiberglass insulation.
As part of our ongoing efforts to educate our customers, we are here to discuss the types of insulation used in crawl spaces, including the pros and cons that are associated with each one.
Crawl Space Fiberglass Insulation: Pros and Cons
Fiberglass insulation is a material that is made up of plastic that is reinforced by extremely fine glass fibers. This composition gives the plastic additional strength while improving its insulation capacity.
Fiberglass is a more traditional type of insulation found in walls, attics, and crawl spaces in many older homes. The most commonly used form of fiberglass found in crawl spaces is blankets, which is batts and rolls.
Fiberglass is suited for standard stud and joist spacing for a crawl space.
Fiberglass insulation can trap allergens, dust, and moisture in the crawl space which can promote the growth of mold and mildew.
When it is disturbed, fiberglass in the crawl space can release particulates into the air which can be inhaled. When inhaled, fiberglass insulation particles can cause coughing, nosebleeds, and other respiratory issues.
If the fiberglass insulation in the crawl space must be disturbed, the person in the area should wear protective gloves, long-sleeved shirt, pants, and goggles.
If fiberglass particles comes into contact with the skin, small particles can lodge in pores causing itchiness, rashes, and irritation.
Spray foam is more expensive than other traditional forms of insulation used in the crawl space.
Some brands of open cell spray foam have a slight odor after it has been applied, so it is important to watch which brand is being installed.
Deciding Which Insulation is Best for Your Crawl Space
The Building Science Corporation recommends a foam based insulation material for crawl spaces because it creates an air barrier.
If you agree that foam insulation is the better option for your crawl space and live in Michigan’s lower peninsula, give us a call at 866-900-3626 for a free estimate, or fill out the form on our website.
About Amanda Ringler
Amanda previously has worked as a breaking news and crime reporter, TV news producer, and editor in Flint and Detroit. Throughout her career as a journalist, she has won several awards from the Detroit Chapter of Society of Professional Journalists and the Michigan Press Association.
As part of the RetroFoam of Michigan family, Amanda uses her experience as a journalist to write content that will help educate homeowners on the benefits of foam insulation.
When Amanda isn’t writing, she’s spending time with her husband and rescued huskies. She also loves knitting, making art, cooking, and hosting dinner and a movie night for friends and family.