When we are called for Crawl Space Insulation Installation In Portola Valley, we find the attic in a different situation, but all already anticipate.We took a project the other month, where we were hired to clean the Crawl Space. The owner would say that her wife was complaining about the bad smell that was coming from the attic.
Since that is what we do best, we were happy to take the project. The next day we went with my team to handle the clean. The attic from the look of things has never been cleaned. There was a different kind of rodents, and as a matter of fact, we found two dead rats. We cleaned the Crawl Space, removed all the rodents, and insulated the whole space.
A properly insulated and sealed crawlspace is one of the fundamental elements of a comfortable, healthy home. Crawlspaces have long been insulated with fiberglass batt insulation, but modern building science reveals the downsides of that practice.
Ideally, crawlspaces should prevent air from infiltrating a home, so as to reduce the occurrence of drafts and the presence of allergens.
How many times have you seen round/oval vents penetrating from the crawl space into the house through rectangular holes? This situation is cause for great concern. We already know that fiberglass batts cannot control or prevent air/moisture movement and infiltration. That being the case, even if your crawl space is “properly” insulated with batts, they will not prevent cold air, warm air, contaminated from entering the living space of your home.
If the crawl space in your home is not fully sealed from you’re your home, there is a strong likelihood that contaminated air, earth gases, mold, rodents, and more can penetrate your living space.
Spray foam insulation installed between your floor joists in your crawl space is the only material that will create an effective thermal barrier from obstructions such as wiring and plumbing, ductwork, and narrow or wide joist spacing. Batts are often compressed during installation due to the use of wire insulation hangers. Open web floor trusses create additional problems in that the open webs create pathways for air to move around the batts.
During the summer, warm humid air can flow around the batts and create condensation, mold and decay problems in the floor system. Open web floor trusses are virtually impossible to adequately insulate with batts.
Closed-cell spray foam will also serve as an effective moisture barrier between the ground and homes subfloor surface. It will also prevent “stack effect” air/moisture movement into the homes walls and upward into the homes attic space, which can cause even more problems.
Spray foam circumvents floor insulation problems through its ability to completely fill voids and open spaces. Areas around wiring and plumbing as well as open webs of floor trusses can be completely filled, resulting in a complete, essentially uniform thermal barrier on the floor.
Spray foam insulation in the crawl space is a superior insulation product that overcomes several disadvantages of other insulation products. Spray foam can provide a more uniform, consistent thermal barrier as well as provide stack effect / air flow retarding functions.
If you’re trying to lower your energy bills, one of the best ways to do this is by re-insulating your home. And when it comes to insulating your home, the crawl space holds a lot of potential!
The lower levels of homes—the basement and crawl spaces—are very high-moisture areas that are prone to leaking, mold development and more. This can really compromise the energy efficiency of your home, so it’s important that these areas are properly insulated. In fact, if your crawl spaces aren’t insulated, you could be losing a lot of money due to lost energy (crawl spaces are big sources of air leakage!).
Crawl Space Insulation Contractors In Portola Valley
Do you need to insulate your crawl space? Contact Portola Valley Insulation for a FREE estimate by filling out the form in the sidebar or calling (650) 535-1966!
Crawl Space Insulation Installation
If your Portola Valley home has any crawl spaces, they need to be insulated—no doubt about it. Insulation, however, isn’t the only thing to consider. Your crawl space should also be properly weatherized and sealed. Air leaks decrease the effectiveness of insulation, no matter where it’s installed (crawl space, attic, basement, etc.). So if your crawl space is insulated but not sealed, you could end up dealing with problems like moisture infiltration, soil vapor intrusion (which can reduce indoor air quality), and more.
Ventilated vs. Unventilated Crawl Spaces
Is your crawl space ventilated or unventilated? If you aren’t sure, that’s okay—our experienced Portola Valley home insulators will be able to tell you! Both types of crawl spaces need to be insulated, but depending on whether it’s ventilated or not, you’ll need to go about it a little differently. Ventilated crawl spaces should be insulated between the floor joists and under the subflooring. If your crawl space is unventilated, the walls should be insulated, and sealing isn’t as urgent because air and moisture infiltration isn’t as big a problem.
Although you don’t think about the lower levels of your home in Portola Valley, particularly if you have a crawl space or unfinished basement, they can truly maximize the energy efficiency of your home. This means lower energy bills for you! Whether insulated with fiberglass, cellulose or foam, crawl space insulation can also make your home more comfortable year round.
Crawl Space Insulation Installation in Portola Valley
If you live in the Portola Valley, area and need insulation services, Portola Valley Insulation is a great name to know! For almost 30 years, we’ve been helping homeowners throughout Portola Valley with their insulation needs, including ventilated and unventilated crawl spaces.
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