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Roof, wall & floor sheathing alternatives:
This article describes the common types of roof, wall & floor sheathing materials used in residential & light commercial buildings.
These include roof plywood, OSB, gypsum board and steel sheathing, wall sheathing using those materials and also foam insulating board products, and floor sheathing including those materials and also concrete slabs.
The article also refers to engineered wood panels used for building roof, wall or floor sheathing.
Roof sheathing forms the base to which roof coverings are fastened and it also forms a component of the building's supporting structure.
Common roof sheathing materials include plywood roof sheathing, oriented strand board or OSB sheathing, steel sheathing/roofing combinations, and though not currently in widespread use, roofs have also been sheathed with gypsum board, fiberboard products.
It is noteworthy and perhaps counterintuitive that the volume of building sheathing used for floors and roofs in North America is roughly twice that used for wall sheathing, perhaps [OPINION] because roof leaks take a more severe toll on roof sheathing than leaks into wall structures.
A still wider variety of building sheathing, if we include wall sheathing, includes foil-faced or paper-faced insulating board thin sheathing (0.078 to 0.137 inch) products that can be applied in large sheets (up to 80 inches by 16 feet) and that include enough structural rigidity that permits the builder to eschew corner bracing on walls.
Foam insulating sheathings come in a variety of foam formulations
including extruded polystyrene, expanded polystyrene, and
polyisocyanurate. Each foam has its particular R-value associated with
the material formulation and thickness of the panel.
Regardless of foam
type, however, foam sheathing is the most insulative of all the
sheathing options. Foam sheathing does require corner bracing, as it is
not structural in nature. ... Foam sheathing does require corner bracing, as it is
not structural in nature.
While many options exist for sheathing products, these products have a
number of issues related to their adoption. These issues are related to
their application, their structural limitations, and material
characteristics, which impact thermal and moisture performance. When
considering alternatives to traditionally used sheathing products,
specifiers should factor in building design and local climate
.. other than the imported wood panels or wood boards, these
sheathing options do not act as a nail base. This complicates cladding
attachment as additional nailers or care to attach to studs is required. - source: http://www.toolbase.org/Design-Construction-Guides/Interior-Partitions-Ceilings/plywood-alternatives
ENGINEERED PANEL SHEATHING: engineered wall sheathing or floor sheathing such as provided by AdvanTech® are used with spray-in closed or open cell foams. These panels may be adhered to light metal framing or as subflooring over a concrete slab. (Special slab preparation is required). - retrieved Jan 2015 original source: http://www.huberwood.com/technical-library/1/16?alias=advantech-installation-tips. Contact: AdvanTech at 800.933.9220 Website: advantechperforms.com. The company produces both floor and wall sheathing panels that they state outperform both plywood and "commodity OSB" sheathing.
See ENGINEERED WOOD Products
Floor Sheathing Products (in addition to the above)
For floor sheathing one adds to the products listed above concrete slab on grade construction.
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