How to Add Attic Insulation

July 25, 2025

Attic insulation in Detroit, MI can significantly reduce your energy bills. It keeps conditioned air in your home, rather than escaping out the attic, and it helps rooms maintain consistent temperatures from ceiling to floor. It can also cut outside noise and improve a home’s soundproofing, which may be an important factor if you live near busy roads or construction.

Top Signs Your Detroit Home Needs New Attic Insulation

There are many ways to add attic insulation, including DIY projects. Before you buy your materials and start crawling around in your dusty attic, be sure to check ENERGY STAR’s resources for helpful tips. Generally, the easiest way to add insulation is by using a blowing machine to distribute loose-fill fiberglass or cellulose insulation. This approach can be especially effective in hard-to-reach areas. However, if you choose this method, be careful not to cover any live wires, which is a major fire hazard. If you find knob and tube wiring (older homes, usually built before 1950), have an electrician disconnect them or cover them with boxes to prevent contact between the live wires and the new insulation.

Before you begin, determine your current level of insulation by subtracting your attic’s square footage from the recommended levels in the ENERGY STAR Specifications Manual. This will give you a target to shoot for when you go shopping for insulation bags. Be sure to purchase enough insulation to reach your target, and be sure not to block any vents, such as soffit or ridge vents, or eave or gable vents, which are critical for maintaining proper attic ventilation.

Spray Foam Genie Detroit
2241 Star Ct, Rochester Hills, MI 48309,
(313) 217-5028