A properly installed vapour barrier is essential for controlling moisture movement in walls, ceilings, and basement assemblies. Without it, warm indoor air can condense inside wall cavities, leading to mould growth, insulation damage, and long-term structural issues.
Pro Insulation Contracting provides professional vapour barrier installation in Barrie and Simcoe County, ensuring every insulation system is properly sealed, code-compliant, and built for Ontario’s climate.
Licensed, BBB Accredited, and Rated 4.9★ by homeowners across Barrie.
A vapour barrier (commonly 6-mil poly in Ontario construction) is designed to reduce moisture diffusion through building assemblies. It is installed on the warm side of insulated walls to help prevent condensation within framing cavities.
In Barrie homes, vapour barrier installation is commonly required in:
Proper installation is critical. Even small gaps, tears, or unsealed seams can allow moisture to enter wall cavities and reduce insulation performance over time.
WHAT WE OFFER
We inspect your framing and insulation system to determine the correct vapour barrier placement and ensure compliance with Ontario Building Code requirements.
We install vapour barrier systems including:
We properly seal critical areas such as:
All installations are completed to Ontario Building Code standards, ensuring your insulation system performs as intended and passes inspection where required.
Barrie’s climate includes cold winters and humid summers, creating ideal conditions for condensation inside poorly sealed wall assemblies.
A properly installed vapour barrier helps to:
When combined with proper insulation and air sealing, vapour barriers are a key part of a durable building envelope.
We install vapour barriers across a wide range of residential and light commercial projects in Barrie, including:
In many cases, vapour barrier installation is completed alongside insulation and drywall work for a fully integrated wall system.
Yes. We often complete all three as part of a full wall system installation.
Improper installation can trap moisture in walls, leading to mould, rot, and insulation failure.
In many cases, closed-cell spray foam can act as an air and vapour barrier, reducing or eliminating the need for poly.
It is commonly required on the warm side of insulated exterior walls, basements, and some ceiling assemblies.
A vapour barrier is a material (typically 6-mil poly) installed to reduce moisture movement through wall and ceiling assemblies.
