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Signs That You Need to Replace Your Home’s Insulation

Replacing your home insulation is one of the most effective ways to improve your home’s energy efficiency. By insulating your home, you can keep heat in during the winter and cool air in during the summer, which can save you money on your energy bills.

What Factors Can Affect Your Insulation’s Lifespan?

Insulation is an important part of any home or building as it helps to regulate the temperature and keep energy costs low. But, like any other material in a home, it has a lifespan and can eventually need to be replaced. Several factors can affect your insulation’s lifespan, such as the type of insulation, the climate, the quality of materials, and the level of maintenance.

The Type of Insulation

The type of insulation you choose for your home or building can greatly impact its lifespan. Fibreglass and cellulose are the most common types used, and both have different lifespans. Fibreglass insulation can last up to 50 years, while cellulose insulation may only last around 20 years.


The climate can also affect your insulation’s lifespan. For example, in some areas with extreme temperatures, the insulation may need to be replaced more often than in other areas. If you live in an area with high humidity, the insulation may be prone to mould and mildew, leading to a shorter lifespan.

Quality of Materials

The quality of your insulation materials can also affect their lifespan. For example, higher-quality materials may last longer than lower-quality materials.


The way your insulation is installed can also have an impact on its lifespan. Poorly installed insulation may be more prone to shifting, leading to a shorter lifespan. Additionally, suppose the insulation is installed in areas with high moisture levels, such as a basement or crawlspace. In that case, the lifespan may be shorter than if installed in a dryer area.

Signs You Need to Replace Your Home’s Insulation

Over time, insulation can become damaged and less effective. So, how do you know when it’s time for a replacement? Here are some signs you need to replace your home’s insulation.

1. High Energy Bills

If your energy bills are unusually high, it could be a sign that your insulation is no longer doing its job. Old insulation may be losing its effectiveness and allowing heat to escape, so your HVAC system must work harder to keep your home comfortable. 

2. Drafts

If you feel drafts in your home, likely, your insulation isn’t doing its job. You may also notice that certain areas of your home, such as the attic, are much colder than other parts.

3. Mold and Mildew

When insulation becomes wet, it can start to attract mould and mildew. This is especially true if you have an older home with a damp basement or attic. If you notice any mould or mildew in your home, it indicates that you need to replace your insulation.

4. Visible Damage

If you can see damage to your insulation, then it’s time for a replacement. Visible signs of damage could include holes, tears, or even discoloration.


There are several factors to consider when deciding whether or not to replace your home’s insulation. These include the type of insulation, the age of the insulation, the condition of the insulation, and the climate in which you live. If you are unsure whether to replace your insulation, you should consult a professional.

If you need residential insulation solutions in Saskatoon, you can hire us at PolarTech Spray Foam. Keep your house properly insulated and protect yourself from extreme weather conditions. Book an appointment with us at PolarTech Spray Foam.

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