3 steps to build a better wall

| by Laura Dwyer
3 steps to build a better wall

A good home starts with good walls. And high performance homes have high performance walls. We'll look at three of the most important factors that go into walls that make homeowners happy.

  1. Air Control: Air moving through cracks and seams in the wall create drafts and can cause significant energy loss. A well-built wall includes air barrier materials to stop the movement of air into or out of the conditioned space.
  2. Moisture Control: Stop moisture with water resistive barriers on the exterior of a building which are designed to resist bulk (liquid) water that has leaked, penetrated or otherwise seeped past the exterior cladding from absorbing into the exterior sheathing or concrete wall.
  3. Continuous Insulation: Some current building codes require a layer of continuous insulation on the exterior of a home. The exterior walls of most homes have insulation between the wood studs inside the wall. But because wood is a poor insulator, significant heat loss can occur through the studs. This is called thermal bridging.

Tyvek® ThermaWrapTM R5.0 improves a home's energy efficiency thus providing a blanket of continuous exterior insulation over the walls and studs, reducing thermal bridging. This helps keep the home warmer in winter, cooler in summer and more comfortable year round.

Tyvek® ThermaWrapTM R5.0 also offers the air and water management benefits that builders have come to expect from all Tyvek® weather barriers with an R-value of 5.0. Compared to other exterior insulation products, the unique structure of Tyvek® ThermaWrapTM R5.0 allows any moisture that may get inside the wall to dry and escape to the outside, helping to prevent the accumulation of water in the wall reducing the chance for water damage and mold.

Depending on the climate zone, some materials can provide an air barrier function, a vapor barrier function or a water resistive barrier function or any combination of the three functions. Some materials can provide all three of these functions plus the function of a thermal insulation, such as Tyvek® ThermaWrapTM R5.0.


Topics: Thermal Envelope


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