Living on Vancouver Island means embracing coastal beauty, but it also means dealing with high rain and humidity levels throughout the year.
These damp conditions can wreak havoc on homes and commercial buildings. Moisture that seeps into walls or crawl spaces can lead to structural decay, poor indoor air quality, and serious health risks caused by mould growth.
Does your crawl space need new insulation? Here’s what to watch out for.
Older homes in Victoria, Nanaimo, and smaller Island communities are especially vulnerable. Many were built before today’s air sealing and moisture protection standards, leaving them more prone to leaks and hidden dampness.
Traditional Insulation Might Not Cut It
Materials like fibreglass and cellulose can trap moisture if there’s any air leakage or condensation inside the walls.
Once they’re wet, their insulating ability drops dramatically, and they become an ideal environment for mould and mildew to thrive. This impacts comfort and can lead to expensive repairs and remediation.
How Spray Foam Insulation Seals Out Moisture
Closed-cell spray foam offers an airtight, water-resistant solution that stands up to the Island’s climate.
Once applied, it expands to fill every gap, seam, and penetration in a wall or ceiling cavity. It creates a sealed envelope that keeps moisture-laden air out and prevents interior air from condensing inside the wall system.
Because it doesn’t absorb water, closed-cell spray foam won’t support mould growth. It also prevents rot in wood framing and adds an extra layer of protection to areas that are often overlooked, like crawl spaces and rim joists.
Benefits Beyond Mould Prevention
Homes that are properly sealed with spray foam stay warmer in winter and drier in every season.
Removing the risk of mould can make a noticeable difference in health and comfort for families dealing with asthma or allergies. For businesses that store goods or operate sensitive equipment, moisture control helps preserve assets and reduce building maintenance costs.
Protect Your Property from Coastal Dampness
If you’ve had issues with condensation, damp smells, or visible mould in the past, it may be time to consider upgrading to spray foam insulation. Whether it’s a new construction project or a retrofit in a heritage home, spray foam gives you a durable moisture barrier that protects your investment long-term.
Contact HD Horne Sprayfoam & Insulation to learn how spray foam can safeguard your Vancouver Island property from hidden moisture and mould risks.
