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How to Choose and Install Blown-in Insulation

Get the information you need to decide whether cellulose, mineral wool, or fiberglass is right for your house, and get expert advice about how to install it correctly.

Choosing and installing the right kind of insulation is one of the most important things you can do to build a comfortable and durable home. While our Insulation Project Guide thoroughly explores all the options when it comes to insulation, this list focuses specifically on the what and how of one of the most popular choices: blown-in insulation. From fiberglass to cellulose, learn how to increase your R-value, insulate an attic floor, and how to tell the difference between insulation jobs done well and those that will give you a headache down the road.

Fine Homebuilding Recommended Products

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Insulation Knife

If you like insulating with mineral wool, this knife makes cuts that are clean, neat, and easy — it's much better than a utility knife which can be slow and messy.

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Caulking Gun

It's important for any insulator to have a good caulking gun for air sealing or adhesives, and this one features a revolving frame that makes orienting the tip a breeze.

Buy at Amazon

Staple Gun

Although powered staplers are very popular, you still need a manual stapler on the job site. This staple gun from DEWALT® is reliable and easy to fire, reducing fatigue over prolonged use.

Buy at Amazon