Use this 3 part SimpleSpecs™ master specification to specify exterior gypsum sheathing with glass fiber facings for use behind masonry, EIFS, siding, and plaster.
Sheathing has a water repellent core and facings and allows temporary exposure to the elements, typically from 3 to 6 months.
A weather barrier is required over the sheathing to prevent moisture infiltration to the interior of the structure.
Older style paper-faced sheathing is not included but may be edited into this section. This type of sheathing is not intended to be left exposed for even short periods and must be covered with a weather barrier.
Installation is covered by ASTM C1280 – Standard Specification for Application of Exterior Gypsum Panel Products for Use as Sheathing.
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