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Fiberglass insulation is what usually comes to mind when people think about insulation. Keep in mind, though, that batts are sold in thicknesses greater than 1 inch. Let’s take a closer look at five common insulation types, and talk about their installation and effectiveness. Most homeowners will want to hire a contractor for their blown-in insulation installation. These contractors are pros and know exactly how to handle a whole-house project without missing spots.
Also, while we don’t have any included in our list, you will find that natural insulation materials, like cotton batts, cost more. Let’s say instead of fiberglass you wanted to use closed-cell spray foam insulation. So now we divide 30 by 6.5 and only need 4.6 inches of insulation. Before diving too deeply into the topic, it’s important to discuss the types of blown-in insulation.
Home Attic Insulation Cost
The attic is usually one of the greatest areas for heat loss in the home. Since heat rises, the warm air goes to the attic and out the roof. Attics can be insulated with spray foam, batt, or loose-fill insulation. The cost to insulate a ceiling averages $400 to $1,500, assuming an average ceiling of 500 sq.ft. This includes batts, loose-fill, spray foam, and some rigid board insulations. The cost of blue jean insulation is $1.15 to $1.75 a square foot.
We'd had new roof insulation and decided to get our cavity walls filled with insulation. Insulating your roof costs anywhere from $1,500 to $4,500 or more. This creates a conditioned space that you can then convert into a living space. Most attic conversions cost $40,000 and you can often bundle the price in with new roofing.
Fiberglass Insulation
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Rockwool is a brand of mineral or stone wool made of basalt and recycled steel slag, melted and spun into fibers resembling sheep's wool. Cellulose's settling characteristic is beneficial in colder climates because it creates a denser, more effective thermal barrier than fluffier, loose-fill fiberglass. Reviewed by Tom Grupa and 3 expert insulation installers on HomeGuide.
Estimates
House is $1,200 to $30,000, but costs can be lower for smaller homes or higher for larger homes. These costs reflect the least expensive and most expensive insulation types in their range. At the other end is insulating your entire home with the maximum amount of spray foam insulation. Many spaces can be insulated, including wall cavities, ceilings, basements, attics, and crawl spaces. Most homes use a combination of insulations, but you can use just one type. Costs can be much lower when insulating in new construction, and they may be higher for existing spaces, particularly if the spaces are hard to access.
The median range cost of polystyrene is $1.00 to $15.00 per square foot. The cost of wood fiber insulation averages $4.25 to $6.75 a square foot. This is another material that can be made into rigid boards for insulation.
Insulation Removal Cost
Updated the introduction with new information, projects, costs, and average range. Millions of people ask HomeGuide for cost estimates every year. We track the estimates they get from local companies, then we share those prices with you. However, you’ll want to carefully install the products to fill all cracks without compressing any of the fiberglass. The value of the insulation comes from its ability to create air pockets between the fibers; once compressed, they lose a lot of their insulation properties. You’ll also want to wear proper protective gear, including a dust mask, goggles, gloves and full-coverage clothing.
In cases where little or no attic insulation exists, blown-in insulation is worth the investment. It’s often counterproductive to compare attic area to wall area, as well. Attics require thicker layers of insulation and more material to achieve required R-values than walls. The labor cost for this project ranges between $40 and $70 per hour, which usually depends on the region. However, more complex projects or those requiring thicker insulation will require more work hours, increasing the cost of the project.
If you have insulation in your attic, you can complement this with insulation in a particular ceiling. This will help keep an individual room warm in the winter and cool in the summer and is often an effective piecemeal way of insulating a home. As an example of why insulation is critical, uninsulated floors waste 10% of your home’s heating bill. Get at least 3-5 estimates before hiring House Insulation contractor — estimates are typically free, unless it’s a service call for a repair.
If you are replacing your siding and want to get a tight building envelope, this is the material for the job. It seals tiny gaps in the home’s exterior where thermal transfer may occur. Use a vapor barrier2 with this insulation because it causes condensation and mold and mildew growth. Closed-cell spray foam costs $1.30 to $2.90 per board foot installed and open-cell spray foam insulation costs $0.60 to $1.30 per board foot. Polystyrene insulation costs between $1 and $15 a square foot. This material can be made into rigid foam boards or spray foam insulation.
The average cost to insulate a garage ranges from $600 to $8,000. This assumes an average 2-car garage and may include insulating the ceiling, door, walls, or all available spaces. Many people insulate at least partly to reduce energy costs. Others insulate only when they finish the space or add living space above it.
Spray foam is highly suited for humid conditions because it settles into a very durable barrier. With its natural fireproof qualities, mineral wool wins out if safety is a priority in your home. This is a top pick if you have a home with young kids because you'll have extra peace of mind. Homes with furnace duct systems in the attic can expect some of the cellulose dust to recirculate throughout your home.
You might spend more upfront, but you will definitely see the savings on your monthly bill over time. Poor insulation can cause this imbalance of temperatures which causes ice dams. If you notice ice dams, it can be a critical indicator that you need to re-insulate your attic or check your roof. This can cause them to need more frequent repairs and age much faster. If you have purchased an energy-efficient HVAC system, you do a disservice by not also pairing proper insulation with it to work its best. Whether you DIY insulation installation or hire a local insulation company, you’ll want to carefully consider the best options for your home.
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