How To Install Exterior Gypsum Sheathing

Sheathing is basically the "backing material" that can be establish underneath the various layers of stucco that grade the backing of residential and commercial buildings.

They can be made out of wood, cement, gypsum, fiberglass and other materials. Let's take a deeper look at these different sheathing materials to go a better understanding of each of them.

Woods Sheathing:

This is the most common type of capsule found on near residential applications these days and tin come in ii different forms:

OSB:

Brusk for (orientated strand board) is a man-made product that is constructed using adhesives and flakes of wood that are compressed in multiple layers.

This is an cheap product and is what most residential and commercial builds use, when wooden sheathing requirements are needed.

osb sheathing

Is usually around 3/8″-five/eight″ thick for about stucco applications (unless noted by edifice plans, or county/state requirements)
Can exist found at near large dwelling improvement stores and is readily bachelor
One of the cheapest sheathing options out in that location
Comes in 4′ by 8′ sheets typically
Additional links for OSB:
1. Wikipedia
2. HowStuffWorks.com

Plywood:

Is layers of thinner "veneer similar" ply-woods that are glued together, alternating the grain of the woods that form a single solid sail.

Ply wood is more than expensive than OSB, but repels water a niggling bit better and provides a scrap more forcefulness too.

Plywood Sheathing

roseburg.com

Is ordinarily around 3/8″-5/8″ thick for near stucco applications (unless noted by building plans, or county/land requirements)
Tin can be found at most large home improvement stores and is readily bachelor
Moderately priced, merely still competitive
Comes in 4′ past 8′ sheets typically
Helpful links on plywood:
1. Wikipedia
2. HowStuffWorks.com

Additional Notes: When using woods substrates, yous should space the sheets near ane/8″ to permit for expansion if the sheets happen to get moisture.

If yous do not, then the sheets could potentially buckle and create dandy issues in the base of operations coat(s) and/or stop coat of the stucco.

If installing new wooden substrate, yous can apply 16d nails to create an i/8 of an inch gap on all plywood/OSB sheathing. If already installed with no gaps included, a skillsaw or router tin be used to create the gaps by cutting downwards where the sheets come across.

Only gap if the manufacturer requires it, if not, follow their directions for proper installation.

When using wood substrates, you lot should infinite the sheets about 1/8″ to allow for expansion if the sheets happen to go wet. If you exercise not, so the sheets could potentially buckle and create neat issues in the base of operations coat(s) and/or terminate glaze of the stucco.

If installing new wooden substrate, you tin can use 16d nails to create an 1/8 of an inch gap on all plywood/OSB sheathing. If already installed with no gaps included, a skillsaw or router can be used to create the gaps by cut downwardly where the sheets meet. Only gap if the manufacturer requires it, if not, follow their directions for proper installation.

Exterior Gypsum Capsule

This is basically an exterior class drywall that is more than commonly constitute in commercial projects, but tin can as well be found in some residential applications as well. It has additive mixed into the base of it, which brand it h2o-resistant and is coated with a water-resistant newspaper cloth besides.

Gypsum Sheathing

kuikenbrothers.com

Is commonly found in 1/two″ – 5/eight″ thick and comes in a 4′ by viii′ sheet, typically, simply can too be establish in ten and 12′ lengths as well

Is more of a specialty item and is not typically found anywhere and everywhere

Is moderately priced

Brand the installation process much faster, so it's easier to accomplish deadlines

More typical in commercial applications

A couple of related links:

ASTM.org & ASTM.org
Gypsum.org

Manufacturers of exterior gypsum and their websites:

Georgia Pacific (Densglass)
National Gypsum
CertainTeed
American Gypsum

Drinking glass Mat Sheathing

Similar to outside gypsum board, but uses a fiberglass bulwark instead of a paper product on the outside.

Glass Mat Sheathing

nelsonandaffiliates.com

Like sizes to exterior gypsum
Is too a specialty particular, but is usually found at most stucco supply yards or can be ordered
Is a bit pricey
More than mutual in commercial applications
Helpful Links:
1. Coming Soon!
Manufacturers of glass mat sheathing and their websites:
1. Georgia Pacific (Densglass)
2. USG
3. CertainTeed
4. National Gypsum

Boosted notes for gypsum and glass mat sheathing:

Both can exist cut using a utility knife, only like y'all would if you were cutting interior drywall

Glass mat sheathing has fiberglass on the outer layers, which tin irritate the peel, eyes and other parts of the torso, so take the necessary precautions when handling or applying the material

They both are typically available in 1/2″ and v/eight″ thickness

They both carry a fire rating, which tin help if building inside shut quarters of another structure (bank check manufacturer's specs)

Cement Board

Cement board is basically a mixture of cement and reinforcing fibers (fiberglass strands) that is formed into a sheet that can be attached to a wall easily, providing a great base for tile or other masonry products.

Is typically 1/iv″ or 1/2 in thickness
Comes in 4′ x 8′ OR three′ x v′ sheets
Is available at most large home comeback stores
Is very reasonably priced
Helpful links on cement board:
1. Wikipedia
2. Most.com
Manufacturers of cement board products and their websites:
1. Hardie Backer Board
2. USG
3. CustomBuildingProducts.com
4. National Gypsum