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How To Insulate A Crawl Space: Top Tips

insulating your homes crawl spaces

How To Insulate A Crawl Space: Top Tips

If weather’s extremes can affect every crevice of one’s home, including older homes where there are basements through which one could literally crawl, then they should be insulated.

This article will help homeowners find out why we should properly insulate these crawl spaces, and, more importantly, how to insulate them.

Why Insulate Crawl Spaces to Start With?

Most older homes were built with crawl spaces. These are literally basements or gaps in houses through which, as we have said, one could literally crawl.

These provide easy access to utility pipes and other such conduits, and sometimes even offer storage for seldom-used items. Crawl spaces suffer from some problems which would best be solved with proper insulation.

Here’s a few of the main crawl space conundrums:

-Needless Moisture. Since some crawl spaces are either close to the ground or are accessible to the elements through walls and ceilings, moisture can accumulate within the space. This is inconvenient in itself, because it could damage valuable items stored in crawl spaces, or utility conduits and the like.

-Mouldy Spaces: Mould can accumulate in crawl spaces due to the combined effects of air and damp environments in which it can thrive. When mouldy crawl spaces are there, it is likely that circulating air would take mould to other parts of the house, possibly causing illness.

-Rodents and Other Pests: Rodents and other pests thrive in damp environments such as crawl spaces which are improperly insulated, or not insulated at all. These pests can bring illnesses to a home.

-Non-standard Insulation: Most crawl spaces were built in an era long before there were proper insulation standards. In the UK, there are particular rules for what sufficient home insulation should be. A professional home insulation expert would be most helpful, as they are aware of the relevant standards.

crawl space insulation

What Should you do to Ensure Your Crawl Spaces are Properly Insulated?

There are several steps you should take in order to properly insulate your crawl spaces. Many home improvement experts, including the American Bob Vila, agree that these steps would ensure that your crawl space is up to date, and insulated effectively:

-Remove All Sources of Moisture Before Doing Anything Else: This can mean extending downspouts, maintaining gutters, or even regrading sidewalks and patios to ensure that water flows away from the basement.

-Insulate the Walls: Treat the crawl space as you would other spaces at home, where you insulate the walls to protect wind, water, and other elements coming through. This is especially crucial in cold weather environments, where the risk of high moisture coming from the air is particularly sensed.

-Insulate Joists If Needed: Using closed-cell spray foam insulation, insulate perimeter or rim joists that rest on the home’s foundations. This is especially true in situations where the weather is extremely cold. This will supplement the insulation of the crawl space walls.

-Insulate the Foundations with Rigid Foam Board, and Seal All Gaps With Waterproof Tape: This provides added insulation from moisture that can weaken the home’s foundations. If necessary, put in a double layer of it.

-Seal Off All Vents, or if Necessary, Remove Them: The latter may especially be necessary in colder climes or less temperate weather. This prevents circulating air and moisture from entering the crawl space, and protects the insulation from needless wear and tear.

These are just some of the steps one can take to properly insulate one’s crawl spaces.  However, it is  ALWAYS best to consult a home improvement expert to find out which type of insulation will be best for your property’s crawl spaces.

crawl space insulation cost

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