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7 Ways Blown in Attic Insulation Keeps Out the Heat in Southern California.

Living in Southern California comes with its fair share of challenges, and one of them is the relentless heat. With scorching summers and soaring temperatures, keeping our homes cool can be quite a task. However, there is a solution that can help combat this problem effectively: blown-in attic insulation. In this article, we will explore seven ways blown-in attic insulation keeps out the heat in Southern California, allowing you to maintain a comfortable and energy-efficient home.

Reducing Heat Transfer

Attics are prone to heat transfer, with the scorching outdoor heat making its way into our living spaces. Blown-in insulation works as a barrier, minimizing heat conduction from the attic to the rest of the house. By reducing heat transfer, the insulation helps maintain a cooler indoor environment.

Air Sealing

Another crucial aspect of effective insulation is air sealing. Air leaks in the attic can significantly impact the insulation’s efficiency by allowing warm air to infiltrate the space. Blown-in insulation helps by identifying and sealing these leaks, preventing unwanted heat from entering the living areas and ensuring better energy savings.

Thermal Insulation

Thermal insulation plays a vital role in reducing heat flow. Blown-in attic insulation provides excellent thermal resistance, helping to keep the heat out during hot summers. With its superior insulating properties, it ensures that the attic remains cooler, consequently reducing the overall temperature of your home.

Radiant Barrier

Radiant heat is a common problem in attics, where the sun’s rays penetrate the roof and transfer heat through radiation. Blown-in insulation, when combined with a radiant barrier, reflects a significant portion of this heat back, preventing it from entering the living areas. This dual approach offers enhanced protection against heat infiltration.

Energy Efficiency

Blown-in attic insulation plays a crucial role in improving energy efficiency. By reducing the workload on your HVAC system, the insulation minimizes the need for constant cooling, thus lowering energy consumption. This translates into significant savings on your utility bills and a greener, more sustainable home.

Blown Insulation on an attic insulation project in Covina.
Blown Insulation on an attic insulation project in Covina.

Cost Savings

One of the notable benefits of blown-in attic insulation is the long-term cost savings it provides. With reduced energy consumption, homeowners can enjoy substantial savings on their utility bills over time. Additionally, the investment in insulation pays for itself through improved energy efficiency, making it a wise financial decision.

Environmental Benefits

Apart from the financial advantages, blown-in insulation also offers significant environmental benefits. By conserving energy and reducing the carbon footprint, homeowners contribute to a more sustainable future. Choosing blown-in attic insulation is a step towards creating an eco-friendly living space and a healthier planet.


  1. Is blown-in attic insulation suitable for all types of attics?
    • Yes, blown-in attic insulation is suitable for most types of attics, including those with irregular shapes or limited access.
  2. How long does blown-in insulation last?
    • With proper installation and maintenance, blown-in insulation can last for several decades, providing long-lasting thermal protection.
  3. Can I install blown-in insulation myself?
    • While it’s possible to install blown-in insulation as a DIY project, it is recommended to hire professional installers to ensure proper and efficient installation.
  4. Will blown-in insulation cause any health issues?
    • Blown-in insulation made from safe materials like cellulose or fiberglass does not pose any significant health risks. However, it’s important to follow safety precautions during installation.
  5. Can blown-in insulation help with soundproofing?
    • Yes, blown-in insulation can help reduce noise transmission between floors and walls, improving the soundproofing qualities of your home.


In conclusion, blown-in attic insulation offers multiple advantages in keeping the heat out in Southern California. By reducing heat transfer, air sealing, providing thermal insulation, utilizing radiant barriers, improving energy efficiency, and delivering cost savings, this solution ensures a cooler and more comfortable home. Moreover, the environmental benefits it brings make blown-in insulation a win-win choice for homeowners.

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Whether it is a residential or commercial property, whatever your insulation needs are, Blown - In Insulation is the insulation contractor you want! Contact Brad today for more information on our services, and don’t forget to ask for your free quote! Phone: (626) 696-6042 ‍ Service Area: Southern California

RJ Cooper

RJ Cooper, owner of Contractor Marketing Network. A leading internet marketing company for contractors. Visit to learn more about our services.

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