A crawl space is a narrow space in your house, usually located either in the basement or the attic, which allows repairmen access to your wiring or plumbing. But a crawl space can also hike a homeowner’s energy bills since heat and cold can be lost through the floor or ceiling, forcing the cooling or heating system to work harder. A crawl space can also retain moisture, resulting in mold which can cause health problems. Because there’s empty space underneath the floor, the floors themselves can be loud. All these reasons are why it is vitally important to install crawl space insulation in your house.
How you install crawl space insulation depends on whether your crawl space is ventilated or unventilated. Today, building codes usually require vents to be placed in crawl spaces to prevent moisture problems from developing. Most professional builders, on the other hand, know that they need to forgo ventilation altogether or to close the vents after they’ve given the crawl space enough time to dry post-construction. The reason for this is that in the winter, ventilation makes crawl spaces difficult to heat, and in summer warm, moist air brought in from outside by the vents does not dehumidify the crawl space and in fact, can even increase moisture. An unventilated crawl space is easier to install crawl space insulation in.
From here you need to determine whether or not you can handle this crawl space insulation project alone, or if you should call in professional help. Take the proper precautions if you decide to install your own crawl space insulation. Wear safety gloves, protective eye gear and a shirt with long sleeves. You will also need plenty of Batt insulation (the cheapest type of insulation) with an R-value of 10 for ventilated spaces and 20 for unventilated spaces. The higher the R-value, the more effective the material’s insulating properties.
To avoid drafts, seal up any gaps, spaces or openings before you install the insulation in your crawl space. You can create an entryway into the crawl space from inside of the house, if you seal off any external entryways. You should also consider moisture control measures. You can place a vapor barrier on the floor of your crawl space to keep soil moisture at bay.
For an unventilated crawl space, insulation only needs to be installed in the walls of the foundation. For a ventilated crawl space, you might need to install insulation in the empty spaces beneath the floor also. Any pipes in the crawl space need attention, too; wrap all pipes in a layer of insulation to keep them from leaking heat and from freezing.
The installation of crawl space insulation can be a crucial improvement to your home. If done properly, aside from saving on energy costs, it can also make your home more comfortable.