Everything You Need to Know About House Wraps

July 07, 2019
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A well-built house is able to protect everybody within it from a variety of outside elements. In the short-term and the long-term, a house that’s built with all the necessary layers can keep you and your family warm, dry, and safe. 

But, are you aware of everything it actually takes to achieve this? Sure, most people know about the basic elements of a house like siding, trim, flashing, and more, but did you know that it takes a little something extra if you want to prevent water and moisture damage for years to come?

If your house isn’t equipped with a house wrap, you can expect some level of water damage and all the things that come with it such as mold, wood rot, and more. Not every house comes with a house wrap, but having one installed on your house is crucial to keeping it completely free of water damage. 

In case you weren’t aware of house wraps and everything they offer in terms of protection from outside weather and moisture, let’s take an in-depth look at what exactly house wraps are and the kind of damage and danger they can protect you from.

Why Should You Use a House Wrap?

The average home has equipment like siding, flashing, trim, caulking, and layering which are all intended to protect your walls and the inside of your home from water, sun, and wind damage. 

While these will successfully get the job done for a while, eventually small amounts of moisture will seep into the small cracks between doors, windows, and siding. This moisture will become trapped within the cavities of your walls and cause wood rot, mold, and other issues.

What is a House Wrap?

A house wrap is a breathable membrane that you install over your walls, beneath your siding. A good house wrap will be micro-porous and non-perforated, allowing some amount of moisture from solar vapor drive to pass through without trapping it inside your wall cavity. It protects your walls from water penetration by rain-driven wind and other sources as well. 

A quality house wrap is resistant to UV rays, with the best wraps being able to withstand UV exposure for 9 months. A good wrap should also be resistant to tree sap, sugars from wood siding, pressure washing, and job site chemicals. A typical high-quality wrap will be made from polyolefin which gives it superior levels of durability and strength. It should also be transparent enough to see through and find the framing members during installation. 


Being recognized as an official air barrier by both the IRC and the IBC is another sign of a good house wrap, as well as a design which is able to stand up to heavy winds and is resistant to tears. 

House Wraps Provide Major Value to Any Home

If you’re looking to keep your home or homes safe from the insidious damage which nature can do to your walls over time, a good house wrap is essential. Do a house wrap comparison of typar vs tyvek when deciding what house wrap to use.

Not only will it protect your walls from sun exposure, rain and wind damage, and creeping moisture, it could potentially prevent you and your family from unknowingly breathing in mold spores from hidden mold as well. 


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