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Before the walls are sheathed make sure to insulate corner studs and partition studs.

Shinny surface out if your using the OSB sheeting. Strapping- straightens and flattens, 1×3, perpendicular to the floor, ceiling joist.

Estimating strapping is l of row x #of rows = LF of strapping. Packaged 10 pieces per bundle

Plates – How many 16’ then reduce down to nothing less than 8’. Only one non-multiple f four is allowed per run of plate. So that our splices fall on a framing member (only when framing is 16” O.C.) Bearing walls get a double top plate, non bearing walls only have a single top plate so if berringx3 if non-berringx2

12/16 x L plus one = if 16 O.C.

12/24 x L plus one = if 24 O.C.

Sheets – Wall L /4 =# of sheets for that wall

Sf of a triangle is half the base times the height

Those partitions that run parallel to the strapping need strapping on either side of their plates.

Steel – Load bearing deals with gauge 18 – 16 gauge is common for load bearing. The lower the # the thicker the steel. Non load bearing walls divide and are 25 gauge. Steel is a recycled product its strong uniform and cost effective, and there is not too much fluctuation in the steel market. It does get very hot when left in the sun.

Interior wall framing- mostly non-bearing, no double top plate, divide, headers can be flat, single or double, only purpose is to square up an opening. Framing the longest walls first, mostly 2×4, normally framed after the strapping has been installed. When doing a bathroom make sure that the tub is where it belongs before framing.

Insulation – A material that has a high resistance to heat transfer. R-11 used in 2×4 framing. R – 19 is used for 2×6 walls. Purpose is to reduce the movement of heat through an enclosed surface. Thus making our living areas more comfortable warmer in the winter and cooler in the summer. Helps maintain comfortable temp and also helps reduce sound transfer. Commonly sold in batts and blankets. Blankets are used in walls and floors were batts are used for ceilings and attics. The insulation comes faced unfaced and foil faced for simple vapor barriers.

Vapor barrier – must be solid and continues, fallow a path of least resistance. Moisture is carried by hot air. Two biggest areas that have moisture problems are kitchen and baths so they need to be vented directly outside. This vapor barrier should be as straight as possible because every time we have an elbow or a 90-degree angle we have a loss of about half. The material that is usually used is a 6mil poly or to-tuff a reinforced poly, which is more puncture resistant, available in white and black in 100ft rolls and different widths. The vapor barrier is placed on the worm side of the wall during the heating season. Foil is the best vapor barrier there is. Ceiling walls and floors should get a

Barrier.

Sheet rock – Dry wall a type of construction where the interior finishes is anything other than plaster. Gypsum board is basically a generic name for a family of products consisting of a non – combustible core primarily of gypsum with a paper faces on the face and back as well as along the edges. Often called wallboard, Plasterboard, sheet rock or drywall. It is an abundant resource that comes from a rock that is ground up into a fine power. A joint is were two pieces meet, a dimple is an impression in the surface of the sheet rock produced in the process of either nailing or screwing the product on. These dimples are good for the application of the joint compound. Joint compound is a substance that is used to cover joints and holes. NEVER buy or use compound if has been stored in an area were it has been allowed to freeze because it will crack. Topping or specialty joint compound is bought dry. It dries faster and has less shrinkage. Do not add more until the first coat is dry.

Perfa tape is a paper material sold in rolls, every joint with the exception of outside corners must receive tape.

Insulated gypsum board has a foil on the back, which is good for a vapor barrier, also reflects heat. Primarily used in commercial applications. Wateresistant gypsum board used in high moisture areas, a good base for tile the core is different color, slightly brown. Exterior products – dense glass – have a silicon treated core with a fiberglass mate front and back, used in carports and soffets. Dense Shield – moisture resistant, silicon treated core, fiberglass mates front and back mostly used in bath areas and can be used for walls, floors, ceilings, counter tops, and counter tops, and is used like dura rock or cement board.

Gypsum sheathing is applied between steel and brick. Wallboard is dry, economical, easy to apply, easy to finish with some experience, easy to maintain, easy to repair, noncombustible, and sound deadening.

Plywood Paneling – 3/32, 3/16, ?, 3/8, ?, 5/8 The less expensive the products the thinner the products. 4×8, 2×8, 4×10. Purpose in most cases for accent walls, to enlighten, eye appeal, chair rail, many different spices are used in these products to make many different types.

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