R-value measures the thermal resistance of an insulating material. The higher the R-value, the more effective the insulation is at preventing heat transfer. Blown-in insulation, commonly used in attics, walls, and floors, provides effective thermal resistance while filling gaps and irregular spaces efficiently.
Blown-in insulation is available in different materials, each with distinct R-values per inch of thickness:
Increasing the depth of blown-in insulation raises the overall R-value, but the effectiveness can vary based on settling over time.
Proper installation ensures even coverage and prevents air pockets that could reduce thermal efficiency.
Fiberglass and cellulose insulation can lose R-value if they absorb moisture, making moisture control essential.
While insulation retains heat, proper ventilation prevents condensation, which could degrade the insulation’s performance.
Blown-in insulation selection depends on factors such as climate, budget, and project goals:
Blown-in insulation requires special equipment for even distribution. Professional installation ensures consistency and optimal R-value.
Over time, some materials, like cellulose, settle and lose insulation efficiency. Proper initial application mitigates this risk.
Periodic inspections help maintain insulation effectiveness by addressing any moisture buildup or compression issues.
Blown-in insulation works best when paired with other efficiency measures:
For homeowners looking to improve energy efficiency and indoor comfort, selecting the right blown-in insulation is key. Proper material choice and professional installation make a significant difference in long-term performance.
For expert advice on insulation solutions tailored to your home, contact Lamothe Insulation & Contracting at (508) 847-0119 or email [email protected].
Cellulose and fiberglass are commonly used for attics. Cellulose offers a higher R-value per inch, while fiberglass is more moisture-resistant.
Thickness varies by climate and material. For example, attics in colder climates may require up to 18 inches of insulation to reach R-60.
Yes, some materials settle, reducing their effectiveness. Proper installation minimizes settling and maintains long-term performance.
DIY installation is possible with rental equipment, but professional installation ensures even coverage and optimal efficiency.
Costs vary based on material and area size. On average, blown-in insulation costs $1.00–$2.50 per square foot.
Cellulose is treated with fire retardants, while rock wool is naturally fire-resistant.
Excess moisture can degrade insulation, leading to reduced R-value and mold growth. Proper ventilation and vapor barriers help prevent this.
Homes with sufficient insulation can reduce heating and cooling costs by up to 30%.
Yes, but the existing insulation should be dry and in good condition to prevent issues.
Cold drafts, uneven temperatures, and high energy bills indicate insufficient insulation levels.