Vapor diffusion occurs when moisture moves from a higher to a lower moisture concentration space or from a warmer to a colder place within a building product, like insulation. In contrast, vapor retarders only hinder vapor diffusion.
Closed-cell foam insulation is a superior and effective insulator for attics, crawl spaces, rim joists, pole barns, existing homes and buildings, vans, new construction, and more.
The strength, durability, and safety of buildings and homes depend on proper waterproofing of the basement floors and walls.
Insulated concrete forms (ICF) create airtight wall systems that minimize moisture intrusion through thermal convection.
A self-adhering sheet waterproofing membrane provides a straightforward, peel-and-stick application for numerous horizontal and vertical locations and conditions.
Concrete foundation flashings direct water down and away from a building and contribute significantly to a below-grade wall waterproofing system, an essential component of a durable, strong, and safe building.
Brick ledge flashing protects against bulk water infiltration at the joint where the concrete ledge of the foundation meets the wood framing.
Properly installing vapor barriers (retarders) according to vapor barrier code requirements will minimize or stop water vapor infiltration and exfiltration into a building envelope, provide damp proofing, and enhance the building's comfort, energy efficiency, and long-term integrity.
