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6 Common Signs of Poor Attic Insulation and How to Fix Them

A house is one of the most worthwhile investments anyone can make. For this reason, it is the homeowner's responsibility to ensure their home remains a safe and secure place. Unfortunately, even the strongest improvements cannot stop wear and tear. Naturally, this also applies to the roof, particularly for attic insulation.

Insulation is vital for any attic because it helps maintain the home's temperature, keeps moisture at bay, and reduces energy costs. Conversely, soundproofing is also critical because it prevents outside noise from entering the house. Over time, however, insulation can become damaged or worn out, leading to many problems. Poor attic insulation can lead to the issues we just mentioned, and not caring for them is costly and potentially dangerous.

With this in mind, certain signs can point to a poor attic installation, such as:

#1 - Showing Signs of Aging

One of the most obvious signs of poor attic insulation is age. If the insulation has been in the attic for a long time and has not been updated, it could be a sign that it is not doing its job. The age of the insulation can be determined by looking at the material, as newer insulation will have a brighter colour and be easier to identify. Additionally, if the insulation is in blankets or rolls, they should be evenly distributed and not lumpy or compressed.

The best way to fix old insulation is to replace it. Hiring a professional insulation contractor is recommended because they can identify the right type of insulation for your attic and install it correctly.

#2 - Pest Presence

Pests are a nuisance, and lousy installation is one of the easiest ways for them to get into your attic. If you notice signs of rodents, insects, or birds in the attic, this could be a sign that the insulation is not doing its job. Pests can find their way into the attic through small cracks and crevices, so you must take action if you see any of these signs.

It's also essential to inspect the insulation for damage. Rodents and other pests can chew through insulation, leaving holes and other damage. This can also lead to air leakage and heat loss, making it even more important to replace the old insulation.

#3 - Rising Energy Bills

Rising energy bills may seem normal, but it could be a sign that your insulation isn't doing its job. Poor insulation can cause your home to lose heat, leading to higher energy bills. If you notice your bills increasing, it could be a sign that your insulation is not working.

To determine if your insulation is the culprit, you should have an energy audit conducted. An energy audit can help you determine how much energy you're losing and what areas of your home need improvement.

#4 - Draftiness

A draft is any unwanted air movement in your home. Drafts can occur when air leaks through windows, doors, or other openings in your home. Drafts can cause uncomfortable temperatures, high energy bills, and even health problems.

Drafts can be challenging to detect, but there are a few telltale signs that you may have one. You may have a draft if you feel cold air coming through your windows or doors or notice a cold spot near an exterior wall. If you believe you have it, check the weatherstripping and caulking around windows and doors. Replacing any worn or missing weatherstripping and caulking can help seal up drafts.

#5 - Moisture

Moisture is one of the most common issues most homeowners face, and lousy insulation can contribute to the problem. Moisture can cause various issues, such as mould and mildew, leading to health risks. It can also cause structural damage, rot, and even attract pests.

To prevent moisture issues, you should check your home for any cracks or gaps that may allow moisture to enter. Ensure your windows and doors are properly sealed, and there are no gaps around the frames, and check your roof for any missing tiles or shingles that may be letting in moisture.

#6 - Varying Degrees of Temperature

Temperature variations in your home can significantly impact your comfort and energy bills. If your home is not adequately insulated, heat can escape in the winter, and cool air can escape in the summer. This can cause you to use more energy to keep your home at a comfortable temperature.

Check for any air leaks around windows, doors, and other openings to ensure your home is properly insulated. Make sure there are no gaps or cracks in the walls or floors and seal any you find. Also, check your insulation levels and add more if necessary.


Poor insulation can have various adverse effects, from rising energy bills to health issues. For this reason, you must never shrug them off because they can cause more harm than good in the long run. All that matters is that you take the necessary steps to ensure your home is adequately insulated.

Patterson Bros Drywall provides top-quality services for loose-fill attic insulation in Medicine Hat. Our professional insulation contractors will ensure your home is fitted with a suitable material for increased energy efficiency. Call us today at 403-527-1298 to schedule an appointment!


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