Roof Rafters - The structural members that support the roof.
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Collar Beam - Really not a beam at all. A tie that keeps the roof from spreading. Connects similar rafters on opposite side of roof.
Roof rafters normally leave the centre of the roof void fairly open, whereas the standard design of roof trusses obstructs the space.
Exposed roof rafters
Simplified decorative beams or braces under gables
One and a half stories ...
Pre-cut roof rafters to desired pitch and nail into position.
Pre-drill holes and fasten side panels. Use aluminum nails with neoprene washers and apply mastic to overlap of one corrugation.
Building with roof rafters from an old factory or insulating walls with old denim are less visible possibilities, and if you still want to use an old ship's bow for a front porch, anchors aweigh.
8: Domed and Organic
More Great Lists ...
Cutting Common Roof Rafters
How well did you do in high school geometry? If you did fairly well, then cutting roof rafters will be a piece of cake. All you have to keep in mind is the fact that there are primarily two cuts in rafters.
Floor joists and Roof rafters
Under normal residential loading 2x10, 2x12 and "I" joists have standard allowable spans. Check with your local building officials or I joist manufacturers for specific information on allowable spans.
Attic Accessible space between roof rafters and ceiling joists. Attic Access A provision to gain access to an attic; could be a scuttle hole, ...
Roof Sheathing or Sheeting The wood panels or sheet material fastened to the roof rafters or trusses on which the shingle or other roof covering is laid.
Used by carpenters to measure stair stringers and roof rafters. (how to use)
STK
Stands for "Select Tight Knot". This is a board that has knots in it but the knots are tight rather than loose. Select means it's the best grade.
Stile ...
Collar ties - Nominal 1- or 2-inch-thick members connecting opposite roof rafters. Generally two inch members joining opposite roof rafters to strengthen the roof structure.
Commode - Toilet, water closet.
thick members connecting opposite roof rafters. They serve to stiffen the roof structure.
Computer Aided Design (CAD): Using the computer to perform drafting and design functions.
Concrete: A mixture of cement, sand, and gravel with water.
The easiest way to accurately cut the roof rafters is to lay the pattern out on a large flat surface such as garage or driveway. Measure 8 ft across and 3 feet up at the center and lay your uncut 2x6 roof rafter on this template.
Gable End A gable is that part of an exterior wall, above the level of the eaves, which conforms to the inverted-V configuration of the roof rafters.
Ordinarily, the ceiling joist will run in the same direction as the roof rafters.
Attached pergola to the house fascia: A whaler beam is bolted through the fascia and into the roof rafters of the house. Galvanised rafter brackets are use to bolt the pergola to the house rafters.
The easiest and least expensive method to block this heat is to staple reinforced aluminum foil under the roof rafters and make sure that you have adequate attic ventilation.
Many home remodeling or home addition projects require the construction of subfloors, stud framed walls, roof rafters and exterior sheathing. A Subfloor is assembled on top of a home or home addition's concrete foundation.
Some builders also try to attach the radiant barrier directly onto the roof sheathing prior to their installation on the roof rafters. However, a more effective method is to simply buy foil-faced plywood or oriented strand board sheathing instead.
Figure out where the wall studs or roof rafters are. Your panel will be fastened to these studs or rafters. Plus, your panel needs to be lined up so the air intake and outlet doesn't hit a stud or rafter.
Exposed roof rafters
Porch with thick square columns
Brick porch supports
Exterior chimney made with brick
Open floor plans; one hallway
Numerous windows
Some windows with leaded glass
Beamed ceilings
Pine wainscoting and moldings ...
Knee Wall - A wall-like structure that supports roof rafters.
Kraft-Faced Vapor Retarder - Created by coating kraft paper with a thin layer of asphalt adhesive.
Note that the Speed Square has separate graduations for marking both common roof rafters and hip and valley roof rafters.
The filling of brick between the roof rafters from the wall plate to roof boards for making the building wind tight.
Noil
A by-product in worsted yarn manufacture, consisting of short wool fibers, less than a determined length, which are combed out.
Attic: A space that is accessible between roof rafters and ceiling joists, located at the top of the structure.
Attic Access: An area given to gain access to an attic; could be a scuttle hole, a pull-down stairway or hatch Attic.
Metal straps that are nailed and secure the roof rafters and trusses to the top horizontal wall plate. Sometimes called a hurricane clip.
Tedlar.
A registered trademark name of du Pont Co.; an elastomeric membrane consisting of polyvinyl fluoride ...
The material that covers the end of the roof rafters and provides the finished appearance to the edge of the roof.
Finishing Trim
Trim pieces used to provide an aesthetic finished edge to a siding panel or soffit panel.
The wood panels or sheet material fastened to the roof rafters or trusses on which the shingle or other roof covering is laid.
Rough Opening
The horizontal and vertical measurement of a window or door opening before drywall or siding is installed.
COLLAR BEAM - Wood beam connecting two inclined roof rafters. It helps to stiffen the framing of a pitched roof structure.
COLUMN - A vertical member such as a lally column used to support main beams, roofs, etc.
eave - projecting overhang created by roof rafters
embodied energy - amount of energy required to extract, process, transport, and install a given building element
EPDM - synthetic rubber ...
BIRDSMOUTH A notch cut out of roof rafters to secure a firm bearing on top plates.
BIT An interchangeable cutting tool inserted into chuck of drilling machine.
Sheathing: boards or sheet material that are fastened to roof rafters to cover a house or building.
Roof structure: rafters and trusses constructed to support the sheathing.
...
Roof sheathing. The boards or sheet material fastened to the roof rafters on which the shingle or other roof covering is laid.
Run. In stairs, the net width of a step or the horizontal distance covered by a flight of stairs.
Roof Sheathing
The roof deck is installed over the roof rafters and provides the surface for the application of the roofing shingles. The roof deck (sheathing) can be plywood, plank or hardboard.
Deck/sheathing: the boards or sheet material that are fastened to the roof rafters to cover a house.
Underlayment: a sheet of asphalt-saturated material used as a secondary layer of protection for the roof deck.
2" x 8" - used for roof rafters, floor framing and miscellaneous applications.
2" x 10" - used for stair building, subfloor framing, and various building applications.
2" x 12" - used for a variety of building applications - footings formwork ...
Nominal 1- or 2-inch-thick members connecting opposite roof rafters. They serve to stiffen the roof structure.
Collar Beam
In carpentry, a tie that keeps the roof from spreading. Connects similar rafters on opposite sides of roof.
knee wall (mur nain, m.) Partitions of varying length used to support roof rafters when the span is so great that additional support is required to stiffen them.
knob-and-tube wiring See electrical terms.
A wall-like structure that supports roof rafters.
Knob
Round part of door handle that you hold with your hand.
Hurricane Clip: Metal straps that are nailed and secure the roof rafters and trusses to the top horizontal wall plate. Sometimes called a Teco Clip.
collar tie (entrait retroussé, m.) A horizontal member used to provide intermediate support for opposite roof rafters, usually located in the middle third of the rafters. Also called collar beam or brace.
Six 2x6s for roof rafters (D)
Fourteen 2x2s for roof slats (E)
Six galvanized joist hangers (or aluminum receiver channel)
3-inch deck or sheet metal screws
Two post anchor brackets
Masonry fasteners ...
A doubled rafter header caps the cut rafters at the bottom. The front dormer wall sets on top of this header. The two side walls set on the doubled roof rafters. Top plates cap all three dormer walls.
To brighten up a windowless bath or hallway, for instance, you can install a "light tube," which slips between roof rafters and funnels sunshine down into the living space.
Cost to add a double-pane insulated window: $1,500 ...
The appearance of dark stains on the roof rafters is a strong indication that this problem exists.
Here is a list of engineered wood products available for sheathing (in simple terms, sheathing is the material that builders attach to the exterior stud wall and on the roof rafters before the exterior finish and roofing material is attached) your ...
Also, do not cover the eave vents with insulation. Be sure that there is sufficient attic ventilation to allow moisture to escape. There are special foam and plastic inserts that fit between the roof rafters to help insure proper ventilation.
 See also: Rafters, Rafter, Roof rafter, Roof, Floor
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