Blown-in attic insulation is a popular choice for homeowners seeking to improve their home’s energy efficiency. It is an effective method of insulating your attic and reducing heat loss, thus saving on energy costs. This type of insulation involves blowing or spraying insulation material into the attic space, filling every nook and cranny.
The blown-in method is favored for its ease of installation. Unlike batts or rolls, which must be meticulously cut and fit into place, blown-in insulation can be quickly installed using specialized equipment. A hose connected to an insulation blower sprays loose-fill cellulose or fiberglass materials directly into the attic space. This process ensures that even the smallest gaps are filled, providing a higher R-value (a measure of thermal resistance) than traditional roll-out insulation.
There are two main types of blown-in attic insulation: cellulose and fiberglass. Cellulose is made from recycled paper products treated with fire retardant chemicals while fiberglass consists of tiny glass fibers. Both offer excellent insulating properties but differ slightly in cost, performance under damp conditions, and environmental impact.
Cellulose has a higher R-value per inch than fiberglass making it more efficient at preventing heat transfer. However, it tends to settle over time reducing its initial R-value whereas fiberglass does not settle as much maintaining its effectiveness longer.
When considering moisture control, cellulose absorbs water more readily than fiberglass which can lead to mold growth if not properly managed. On the other hand, when exposed to water or high humidity levels over time, fiberglass may lose some insulating power but will recover once dried out.
In terms of environmental impact both materials have their pros and cons; cellulose being made from recycled content has less embodied energy compared to virgin material like fiberglass but requires more energy in production due to the chemical treatments necessary for fire resistance.
One important aspect you should consider before deciding on blown-in attic insulation is professional installation cost versus DIY approach because it requires specialized equipment and knowledge to install correctly. However, the initial investment can be offset by the energy savings over time.
It is also crucial to ensure that your attic is adequately air-sealed before installing insulation as it prevents conditioned air from escaping through gaps and cracks in your home’s construction. This step will maximize the effectiveness of your insulation and further improve energy efficiency.
In conclusion, blown-in attic insulation offers a highly effective solution for improving home comfort and reducing energy costs. Whether you choose cellulose or fiberglass, professional installation or DIY, ensuring a thorough job with attention to detail will provide you with an efficient thermal barrier for years to come.
