As an expert in the field of insulation, I have seen firsthand the importance of removing old attic insulation before adding new. Many homeowners may not realize the potential problems that can arise from leaving old insulation in place, but it is a crucial step in ensuring a well-insulated home. Skilled contractors who specialize in insulation advise that it's best to remove old fiberglass insulation before installing new cellulose insulation because of the possibility of mold, mildew, or rodent droppings. Attic insulation removal services are essential for getting rid of these potential problems and creating a safe and comfortable living space. At RetroFoam of Michigan, we have over 17 years of experience insulating thousands of homes in the lower part of the peninsula and the Toledo metropolitan area.
We know that old traditional attic floor insulation must be removed before spray foam can be applied to the roof, as it hinders airflow in the house. The main reason for removing old attic insulation is to ensure that your home is properly heated and cooled. Over time, attic insulation often deteriorates, losing its ability to effectively regulate temperature and insulate the house. This deterioration can be caused by displacement or sedimentation of insulating materials, as well as environmental factors such as excessive humidity or damage from direct sunlight. While pest and animal infestations are certainly a nuisance, they can also cause serious damage to the attic and existing insulation.
This is why it is crucial to insulate the roof covering for several reasons: to protect the roof, provide a conditioned space in the attic, and prevent drafts. Even if the old insulation still has some R value left, it could cause more problems than it's worth and hinder the efficiency of spray foam insulation. One of the benefits of insulating the roof terrace is that it essentially places the attic inside the envelope of your house. With spray foam insulation on the attic floor, the dew point will always be inside the foam as long as it has a sufficient thickness to create an air barrier. With my knowledge and training in construction sciences, I have trained manufacturers in spray and injection foams, installed foam insulation for over eight years, and managed sales in the foam insulation industry.
However, one major issue with leaving old insulation in place is that it creates the perfect conditions for mold growth not only on the insulation, but also on the roof and other areas of the attic. The process of removing attic insulation can take anywhere from five to eight hours, depending on the size of your attic. So, should you replace your attic insulation? Whether you are concerned about high utility bills, strange smells, or your long-term health and safety, modern insulation can help ensure your home's comfort for years to come. While some may think that old cellulose or fiberglass material found in the attic floor will add additional insulation to the upper floor, this is not the case. The most common type of asbestos insulation found in attics is vermiculite insulation, although not all types of this insulation contain asbestos.
As you remove the old insulation and return to the attic entrance, be sure to drop it into a large garbage bag for proper disposal.
