What is the Best Attic Insulation For Florida?

Florida has a warm, humid climate which requires adequate attic insulation to control internal temperatures and prevent moisture build-up. Spray foam insulation is considered ideal as its closed-cell design helps regulate internal temperatures more easily while mitigating moisture build-up.

Blown-in fiberglass batts provide another cost-effective attic insulation option for homeowners on a tight budget, although installation may prove challenging and may settle over time.


No matter if you’re remodeling an existing attic or adding insulation for the first time in a new Florida home, choosing the ideal insulation requires taking into account multiple considerations. When selecting an optimal option, look for one that meets both your specific needs and budget requirements – energy audits or similar services can be useful to assess existing insulation levels and gauge future ones.

Fiberglass insulation is an inexpensive, widely available material that comes in rolls or sheets (batts) that can be cut to size for use as attic insulation. Furthermore, fiberglass is resistant to fire, mildew, and mold growth – qualities that make it an attractive option.

However, fiberglass attic insulation may not be as efficient at repelling moisture as other forms. A roof leak or humid climate could contaminate it and lead to mold growth that causes lasting damage in your walls and ceilings unless supplemented by a vapor barrier and air sealing measures; due to these limitations blown-in fiberglass batt insulation like Owens Corning PINK Next Gen offers superior moisture control than fiberglass batts.


Insulation can prevent hot air in your attic from infiltrating air-conditioned living spaces in Florida during the summer and reduce heating and cooling costs, but selecting the correct type for your home is critical. A professional energy audit or similar service will help determine which insulation options will provide maximum benefits in Florida homes.

Blowing cellulose insulation made from recycled paper treated with boric acid to repel insects and ensure fire safety is a popular choice for home attic insulation, offering insect control as well as fire resistance properties. It can be installed in both new and existing homes alike to help fill gaps between framing members.

Loose-fill cellulose can also be blown into wall cavities to achieve an R-value without needing to remove existing materials, like fiberglass batts. Due to its thicker, denser composition, loose-fill cellulose provides better thermal resistance than fiberglass while helping prevent bridging of wall cavities when walls shift, leading to gaps that allow airflow between walls and into your home.

Spray Foam

Geiger Mechanical offers both blown-in fiberglass and closed-cell spray foam insulation to improve the energy efficiency of Florida homes. Both types of insulation help regulate temperatures while saving on energy costs while increasing comfort levels.

Selecting the ideal type of insulation depends on your home’s climate. Florida’s warm temperatures necessitate insulation with a high R-value to help regulate internal temperatures and stay cool during hotter seasons. R-value measures how efficiently insulation traps heat inside while those allowing heat through have lower R-values.

Fiberglass insulation is an economical choice that comes in rolls or batts. Closed-cell spray foam offers a higher R-value as it fills in all the crevices of your attic space, while cellulose made from recycled newspaper with fire retardants also has sound-dampening capabilities – although installation might prove challenging in homes with cathedral ceilings.


An attic space should be properly insulated to maximize energy efficiency in any home, as without insulation it will allow heat into your air-conditioned house during summer and increase energy costs significantly.

Your R-value insulation choice depends on your home and energy needs. Homes fueled primarily by oil or natural gas will typically need at least an R-30 R-value; homes powered predominantly by electricity will require at least R-38 insulation values. Green Fiber Sanctuary insulation is an all-in-one cellulose product designed to fill tiny crevices and gaps for maximum sound reduction up to 60%. Easy installation makes installation quick; each 19 lb bag covers 40 square feet. Furthermore, made from recycled plant materials made up of recycled plant fibers Sanctuary is an excellent environmental choice for reducing carbon emissions as well as greenhouse gas emissions from homeowners’ properties.

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