attic insulation Ottawa

What Is Attic Insulation?

If you’re a homeowner, you’ve probably heard of attic insulation before. But do you know what it is and why it’s so important? In this blog post, we’ll answer those questions and more. We’ll cover the basics of attic insulation, how it works, the different types of insulation, and the benefits of having proper insulation in your attic.

attic insulationAttic Insulation: Did You Know?

First, let’s define insulation. Insulation is a material that is used to reduce the flow of heat between two spaces. Attic insulation, specifically, is the insulation that is installed in the attic of a home. It is used to prevent heat from escaping the living space below or entering from the outside. Proper attic insulation is essential for keeping your home comfortable and energy-efficient.

How Attic Insulation Works

To understand how attic insulation works, we need to talk about heat flow. Heat flows from warmer areas to cooler ones. In the winter, for example, heat will try to escape your home through the roof, which is why your attic can get very cold. In the summer, the opposite happens, and the attic can get very hot.

Attic insulation works by reducing heat flow. It traps air in between the fibers or particles of the insulation material, creating a barrier that slows down the transfer of heat. The effectiveness of attic insulation is measured by its R-value. R-value is a measure of the insulation’s resistance to heat flow. The higher the R-value, the more effective the insulation.

Types of Attic Insulation

There are several types of attic insulation to choose from. The most common types include:

1. Fiberglass batts

This is the most common type of insulation, and it’s also the most affordable. Fiberglass batts come in rolls or pre-cut pieces that are installed between attic joists.

2. Blown-in fiberglass

This type of insulation is blown into the attic space using a special machine. It can be a little more expensive than fiberglass batts, but it’s easier to install and provides better coverage.

3. Cellulose insulation

Made from recycled paper, cellulose insulation is environmentally friendly and provides good coverage. It’s also treated to be fire-resistant and insect-repellent.

Factors to Consider When Choosing Attic Insulation

The following factors should be considered before choosing attic insulation:

1. Climate

If you live in a colder climate, you’ll want a higher R-value insulation to keep your home warm in the winter. If you live in a warmer climate, you’ll want insulation that can help keep your home cool in the summer.

2. Local building codes

Some areas have specific building codes that dictate the type and amount of insulation that must be used.

3. Budget

Some types of insulation are more expensive than others, so your budget will be a factor in your decision.

4. Environmental impact

If you’re concerned about the environmental impact of your insulation, you may want to choose a more eco-friendly option, like cellulose insulation.


Attic insulation is an essential component of a comfortable and energy-efficient home. When choosing attic insulation, it’s important to consider factors like your climate, budget, and environmental impact. By properly insulating your attic, you can enjoy lower energy bills, improved indoor comfort, and a higher home value. For attic insulation companies near me, contact us.