The Exterior Densglass Specification Part?

DensGlass® Sheathing is a preferred substrate for various construction projects due to its ability to protect structures against moisture during and after construction. It is ideal for exterior ceilings and soffits in both cold and warm climate zones, offering enhanced resistance to moisture, fire, and impact. The sheathing is composed of a core of glass-mat gypsum, which can be weather-resistant or Type X.

DensGlass Gold is a durable, moisture-resistant gypsum sheathing that provides superior mold protection for exterior walls and ceilings. It is used in steel framing and interior gypsum panels incorporated into assemblies with gypsum sheathing on the exterior. DensGlass Gold panels are noncombustible when tested in accordance with ASTM E 136 and exceeds ASTM C79 and C1396 sheathing standards.

The DensGlass FireGuard® Sheathing is 5/8-inch thick and complies with ASTM C1177 as a Type X gypsum board. The panels are supplied in 48-inch pieces and include wood foundations, framing, sheathing, and decking using lumber, timber, and engineered wood products.

DensGlass® Exterior Sheathing helps Dryvit Systems, Inc.’s Infinity® and other products, as it is noncombustible as described and tested in accordance with ASTM E 136. This makes it an ideal choice for projects where flexibility and ease of installation are essential.

How is exterior plywood labeled?

Exterior plywood is a versatile material used in various outdoor applications, with the most common being CDX or ACX. These plywoods are marked with an X for their use and construction grade, with A being a premium grade for high-end cabinetry. CDX is a more affordable option with sturdy layers made from veneers, high-density hardwood, or light hardwood. Marine plywood, made from wood without knots, is the highest quality and is used for building boats and marine applications due to its reduced cracking risk.

It is also easier to cut and sand, leaving cleaner edges. Other types of exterior plywood include pressure treated plywood, overlaid plywood, oriented strand board (OSB), and T1-11. Pressure treated plywood is infused with chemicals to increase resistance against mold and mildew, while overlaid plywood has a cleaner finish and better resistance to wear and tear. OSB is an engineered substitute for semi-exposed areas, while T1-11 is commonly used for siding. Overall, exterior plywood offers a wide range of options for outdoor use.

What is exterior grade gypsum sheathing?

Exterior Gypsum Sheathing is a water-resistant product used for attaching to exterior side-wall framing as an underlayment for various siding materials. It is made with a wax-treated, water-resistant core and water-repellent paper on both surfaces and long edges. Available in 1/2″ and 5/8″ thickness, it is suitable for fire-rated assemblies and contains no asbestos. American Gypsum’s gypsum wallboard is also available.

What is the fire rating of DensGlass exterior sheathing?

In accordance with ASTM E 136, ASTM E 84, and ASTM E 84 standards, Dens-Glass Gold panels have been determined to be noncombustible. Furthermore, when tested in accordance with ASTM C 79 standards, these panels exhibit zero flame spread and smoke development.

What is exterior grade sheathing?

Exterior sheathing is a board or panel made of various materials used to provide structural support and insulation to the exterior walls of a home. It can be grouped into two categories: structural sheathing and non-structural sheathing. These types can be used together or individually depending on the building, and both contribute significantly to the overall structure and function of the walls. The purpose of exterior wall sheathing varies depending on the type of sheathing used.

What is recommended exterior sheathing?

Plywood sheathing is a type of wood sheathing made from cross-laminated sheets, providing strength and stiffness for expansion and contraction. It is 15-19% lighter and has good moisture resistance. Oriented strand board (OSB) is a durable panel sheathing made from hundreds of thin wood strands hot pressed onto sheets with a wax and resin adhesive. OSB panels are dense and solid, with no soft spots, and do not breath or redistribute water as well as plywood.

OSB is often cheaper but has more volatile pricing. Waferboard sheathing is a manufactured product made by placing small pieces of wood scraps in a hydraulic press and gluing. Although cheaper, waferboard is weaker and less resistant to water.

Can DensGlass be left exposed?

DensGlass® Sheathing is an engineered exterior gypsum sheathing with a specially treated core and embedded fiberglass mats, which confer superior resistance to moisture, fire, and mold. It is suitable for exposure for up to twelve months and can be used with a variety of exterior claddings.

What are standard sheathing dimensions?

In the context of residential construction, the use of a rated sheathing panel, such as oriented strand board (OSB) or plywood, with a thickness of 0. 95 cm (or 3/8 in), is a standard practice. This sheathing is comparable to that used for shear wall sections. Nevertheless, it is customary to utilise sheathing thicknesses that exceed the prescribed minimums, a practice colloquially termed as “over-sheathing.”

What size is DensGlass Sheathing?

DensGlass® Sheathing is a highly specialized, high-performing fiberglass mat gypsum panel with a wide range of applications. It is widely recognized by its gold color and has a track record of over 30 years. It is a preferred substrate under brick, stone, stucco, siding, and EIFS due to its ability to protect structures against moisture during and after construction. DensGlass® Sheathing adds performance and durability to a wide range of fire-rated and non-fire-rated building assemblies.

The Dens® Suite of products are industry trusted, high-performing fiberglass mat gypsum panels suitable for wall, roof, ceiling, and floor projects. The panels have scored a 10 for mold resistance under the ASTM D3273 test method, making them particularly suitable for soffits. In actual tests, DensGlass® Sheathing exceeded ASTM C1396 standards for humidified deflection by a factor of five times over the standard for paper-faced gypsum sheathing.

What is ASTM C1177?

In accordance with the specifications set forth in ASTM C1177, glass-mat gypsum boards are utilized as exterior substrates or sheathings for weather barriers. The composition of these boards comprises a non-combustible, water-resistant gypsum core with a partially or fully embedded glass mat.

Is sheathing exterior rated?

Exterior ratings refer to panels and sheathing that are exposed to extended weather conditions. Exposure 1-rated panels and sheathing can withstand inclement weather during construction but are not suitable for extended exposure. The grade stamp on each panel indicates whether they are used for exterior or exposure 1 applications. Exterior panels are waterproofed, allowing them to withstand extended exposure to inclement weather.

Exposure 1 sub-floor and sheathing panels can withstand weather without affecting structural properties or moisture or humidity. On-site storage recommendations from the APA suggest stacking Exposure 1 panels and sheathing horizontally on a 4×4 platform to prevent direct contact with the ground.

What type of sheathing is used for exterior walls?

Plywood sheathing is a type of wood sheathing made from cross-laminated sheets, providing strength and stiffness for expansion and contraction. It is 15-19% lighter and has good moisture resistance. Oriented strand board (OSB) is a durable panel sheathing made from hundreds of thin wood strands hot pressed onto sheets with a wax and resin adhesive. OSB panels are dense and solid, with no soft spots, and do not breath or redistribute water as well as plywood.

OSB is often cheaper but has more volatile pricing. Waferboard sheathing is a manufactured product made by placing small pieces of wood scraps in a hydraulic press and gluing. Although cheaper, waferboard is weaker and less resistant to water.