If compression or contamination occurs, the insulation loses its effectiveness. To help the fiberglass insulation dry out, place a dehumidifier or fan in the area. If possible, remove the affected blocks and transfer them to a warm place to dry. Once dry, return the insulation to the wall or floor cavity where it came from.
Re-inspect the fiberglass in the next few weeks, and if it starts to smell weird, it means it was contaminated with dirty water. You should replace it to avoid affecting indoor air quality. Wet insulation can become a health hazard. If the insulation is left moist long enough, mold and bacteria will start to grow in it.
This significantly reduces air quality and can cause significant health risks. The longer the insulation is left moist, the more bacteria will grow and the greater the risk to health and the home. Fibreglass insulation is a combination of water and recycled glass; therefore, it does not absorb water. When water accumulates in the insulation's air pockets, functionality decreases.
This is because water conducts heat. Therefore, the warm air in your home pressed against the insulation leaves the house quickly. What happens when fiberglass gets wet? The water droplets will replace the air available in the space between the fine glass fibers, reducing the acoustic and thermal insulation capacity of the material. You know that your house has spray foam insulation if the cavities in the walls and floor are filled with hard white foam.
When a leak allows water to seep through the outer membrane and saturate the insulation below, that moisture can damage the roof on several fronts. If the attic is not properly ventilated, moisture and condensation will form and drip onto the insulation (lack of air circulation). Foam board insulation works like spray foam; therefore, it is impermeable to water and should not harbor mold or mildew. One of the main reasons to invest in spray foam insulation is its incredible ability to seal cracks and gaps.
Aerosol foam insulation with a closed-cell spray has an airtight seal and moisture barrier integrated into the product. They can provide you with information on the types of insulation that are best used for your home, the R value for each option, and installation quotes. Foam insulation also prevents mold and mildew from building up and often has a much longer lifespan than fiberglass or cellulose. In addition, fiberglass insulation is not rated as high as other types when it comes to strength (meaning it's less efficient and less durable).
However, the water that has accumulated inside the fiberglass insulation will dramatically reduce the functionality of the insulation. After all, water is a conductor, so wet fiberglass insulation is almost as effective as having no insulation at all. Closed-cell foam insulation is much denser than open-cell insulation and has a smaller, more compact structure. Aerial droplets are also a common problem and can affect wall insulation and attic insulation.
Although spray foam works as a moisture barrier and creates an airtight seal, leakage remains problematic because water can damage the wood surrounding the insulation. Replacing insulation can be a costly, time-consuming and laborious process, but it's also an issue that cannot be ignored.