Why house wrap are used in buildings?
The purpose of using house wrap in modern buildings and wooden houses is to prevent water from entering the walls or rainwater from entering the walls. And the house wrap can also cover the cracks in the wall, play a role in protecting the insulation layer in the envelope.
In some cases, the house wrap can also be used as an air barrier to protect the inner envelope during construction. It can resist the construction workers in the construction process, because long time exposure to the internal structure of the wall, so that the glass wool insulation layer is exposed to the sun to lose part of the insulation effect.