Damp basements and crawlspaces are common across the United Sates of America, they are often ignored and mysterious, here is what to learn before installing basement insulation.
Basement insulation requires a checklist of possible issues prior adding the actual insulation. Why? Primarily because of moisture issues. Look for these items to determine if there is a cause for action to remedy.
Water Seepage and Dampness can be a result of four major categories
Now, we ask what is the purpose of the space. What will it be used for primarily. This determines if sound control is needed, thermal control, or something else. This takes up back to the other two factors. Cost. and Performance.
Basement insulation is normally reserved for basement conversions to living spaces. Otherwise the rim joist and sill plate can be sealed but further methods such as insulation on the walls is rarely done as the basement maintains a constant 55 -65 degrees year round from being below ground.
Basement insulation is commonly achieved with fiberglass batt between wood framing or fiberglass wall panels. Fiberglass batt installed paper side against the living space drywall similar to attic insulation fiberglass batts with paper face being installed on the bottom of the attic floor in contact with living room drywall.
We will look more at insulation materials in other sections.
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Final note on crawl space ventilation. To disperse moisture, building code typically prescribe 1 sq ft. of screened vents for each 150 sq ft. of dirt floor, or 1 sq ft. of vents for every 1,500 sq ft of floors covered with a soil vapor barrier. to achieve cross ventilation, vent openings are distributed equally along the length of at least two opposite sides; openings should be covered with 1/4 in wire mesh to prevent rodents, pests, large insects such as wasps from taking residence in the crawl space.
Green Attic Insulation encapsulates crawl spaces turning them into semi conditioned spaces, in the process we close off vents to create a dry clean air tight environment.
Many building scientists agree to seal off crawl space vents and make the crawl space a semi conditioned space. Install a vapor barrier, insulate the crawl space walls, seal air leaks, and install a dehumidifier.
Bonus room above garage is a common home renovation practice and a great why to create some extra space. While it maximizes living space, it can creates an uncomfortable room if not insulated properly with
Attic mold is often found growing on the north side of roof sheathing because mold grows where there is no sunlight ( radiation). Attic mold highlights a list of problems with the insulation and ventilation.
Achieving temperature balance in your home is achievable with a combination of effective insulation and heat pump technology.