May 30 2018 building paper also called house wrap is a strong fibrous paper that blocks water and moisture from entering from the outside but allows moist air to pass through from the inside preventing a buildup of moisture inside walls that can lead to mold.
House siding paper.
Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior.
Unlike asphalt felt it is made from new wood pulp rather than recycled material.
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Grade d building paper is an asphalt impregnated reinforced paper similar to the kraft paper backing found on fiberglass insulation.
Grade d paper is commonly use is under stucco in the western united states.
House wrap and siding paper.
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Why do homes need house wrap.
To sum it up house wrap is a lightweight paper like material that is most often used to completely cover the house directly on top of the sheathing and behind the vinyl siding.
It s important that use the building paper that is recommended for your area.
Moisture will find its way into these wall systems by way of cracked mortar joints gaps or cracks in the surface of the material.