A SMALL DETAIL. A BIG IMPACT.
WHAT IS IT?
In refrigerated and frozen environments, maintaining an effective vapour seal is critical to protecting your facility. Vapour sealing protects external joints, interfaces and penetrations on the warm side of the insulation envelope, helping prevent warm, humid air and moisture from entering through these points and into the insulated envelope.
HOW DOES IT HAPPEN?
Temperature differences between warm and cold environments can create a pressure difference. If a panel joint is compromised, warm, humid air can be drawn into the joint, allowing moisture to penetrate the insulation.
- WARM, MOIST AIR – Warm, moisture-laden air is drawn towards the colder environment
- MOISTURE INGRESS – Moisture enters the insulation through the compromised joint.
- FREEZING / ICE BUILD-UP – In freezer conditions, moisture can freeze and lead to ice build up.
- PANEL DETERIORATION – Ice build-up and moisture can lead to delamination and reduced performance.
WHY DOES IT MATTER?
