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Common Home Inspection Findings – Ventilation and Insulation

home inspection insulation ventilation

Poor ventilation and poor insulation can cause problems such as mold, excessive utility costs, and a general lack of comfort to the homeowner.

Poor Ventilation

Lack of air flow in a home can lead to problems such as mold development. Air flow is essential throughout the house, especially the attic.

One problem that can occur is when a bathroom vent dumps into the attic instead of out the roof. When these vents dump into the attic, this adds moisture to already warm air, which is the perfect breeding ground for mold. Roof venting is now part of the building code in most cases, but this was not always the case and older homes may have these attic vents.

While homeowners are not required to make this change if their home was built before the new code went into effect, it can be a fairly easy and inexpensive fix which can help protect your home against mold growing in the attic area.

The home inspector will also check that kitchen fans vent outside. Other common items seen during an inspection would be blocked roof soffits.

Inoperable Windows

Windows also help with a home’s ventilation. Each window in the house will be checked by your home inspector. Common problems would be a window not functioning properly, such as a broken sash cord which are common in older homes and can be fixed.

Sometimes windows in older homes have been painted shut which also makes them inoperable. This is a relatively easy fix.

home inspection insulation ventilation


Older homes tend to lack adequate insulation. While there is no requirement to upgrade to more modern insulation which does a great job at keeping the house comfortable, it can be a consideration.

These older homes that lack insulation in walls and attic, or have less than ideal insulation, are not nearly as energy efficient as those built with proper insulation. While no homeowner is required to upgrade the insulation in their home, it can be a relatively painless upgrade that can greatly impact utility usage and comfort if you decide to do so.

While none of the issues listed above would require a mandatory fix, they are items that the home inspector will note on the report so that you have a thorough understanding of your prospective home. You can have further discussions with your real estate agent to determine which items may want your attention based up on your needs and goals, and use the information to initiate quotes from qualified contractors if you decide to undertake any upgrades.

If you are in need of a home inspection and would like to receive a thorough and informative home inspection report, or know someone who is, book your inspection by calling


or schedule your home inspection online.

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