Sheathing: The boards or sheet materials that are fastened to rafters to cover a house or building. Soffit: The finished underside of the eaves.

What are the parts of a roof called?

• Roof plane: This is the surface of the roof. …
• Ridge: This is the top or peak of the roof, where two roof planes meet.
• Valley: This is where two pitched roof faces connect and project inward. …
• Dormer: This is a roof feature that projects out from the roof face.

What are the slats on a roof called?

Roof decking (or roof sheathing) is the wooden boards that make up the framing of your roof. These boards are what your shingles and other roofing components are installed on. There are 2 types of wood roof decking: plank decking and sheet decking.

What boards are used for roofing?

Oriented strand board (OSB) – OSB is the most common type of material used for roof decking. It’s durable and readily available, and has relatively low costs. OSB is made of interwoven strands of wood bonded with adhesive.

What are the wooden parts of a roof called?

The rafters A rafter is a key structure in a roof, along with purlins and joists. Together, they make the framework of the roof. If you imagine your roof with no tiles or covering on, the rafters are the pieces of timber that slope vertically from the top down to the eaves. Rafters are generally laid side by side.

What is the best wood for roof?

Longevity. In terms of cost-savings, cedar wood is long-lasting, making it an ideal roofing material. Cedar lasts at least 10 years longer than common roofing materials, like asphalt shingles.

What are the 6 roof parts?

• Starter Shingles. The first layer of shingles at the roofs edge differs for asphalt and tile roofing. …
• Flashing. …
• Underlayment. …
• Roofing Material. …
• Ventilation. …
• Hip and Ridge Shingles or Caps.

What is shiplap on a roof?

Shiplap is 1 x 8 inch fir wood planks used to create a solid surface to attach the shingles to your roof. Before the 1940’s, exterior grade plywood wasn’t an option. After the 1940’s, it was still cheaper to use the shiplap boards, since they were manufactured in the Pacific Northwest.

What are the different types of roof decking?

The 3 main types of roof decking material are concrete, wood, and steel. Each of these materials has different benefits and draw backs, however, the most commonly used type of roof decking is wood.

What is a roof apex?

An apex roof has two slopes, which both meet in the middle – the highest point of the roof. … The front of the timber building is most commonly the side with the highest point of the pent roof and it then descends to the back.

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What is the wood trim around the roof called?

Fascia: Vertical roof trim located along the perimeter of a building, usually below the roof level, to cover the rafter tails at the eaves and to seal off the top of the siding along the rake; also called gutter boards. …

What is the fascia board?

The fascia board is the long wooden board behind the gutters on a house. It connects to the roof rafters, closes off the attic and serves as the mount for gutters. … A damaged fascia can be the starting point for other roof problems and potentially lead to damage to an attic and home.

What are the parts of a shed roof called?

There are two basic ways to frame a shed roof. The traditional method is to cut and install all the parts—rafters, ridge board, collar ties, and ceiling joists—one board at a time.

What is the basic structure of a roof?

The major parts of a residential roof It consists of rafters and trusses, which are beams that form the shape of the roof and support the sheathing or the next layer. Drainage features are also established during the roof structure phase.

What are four types of roof?

• Gable roof. The term ‘gable’ refers to the triangle spot that is formed when the two pitched areas of the roof meet. …
• Hip. Hip roof is slightly more difficult to build and usually has 4 sides. …
• Dutch. …
• Mansard roof. …
• Flat roof. …
• Shed roof. …
• Butterfly roof. …
• Gambrel roof.

What is the pointy part of a roof called?

Ridge: The peak of your roof is the ridge. It’s the highest point on a sloped roof. Eaves: The eaves are the lower edges of the roof that overhang the home’s exterior walls.

What is roofing plywood?

Roof sheathing, also known as roof decking, is a layer of plywood or OSB that covers the trusses and joists, which are the beams that make up the roof’s skeleton shape. … Usually, roof sheathing is made of wood. It can come in the form of plywood or oriented strand board (OSB).

What is the plywood on a roof called?

Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors.

What type of wood is used for roof trusses?

Answer: Yes, species combinations like Hem-Fir and Spruce-Pine-Fir are used regularly in truss manufacturing as well as Southern Yellow Pine and, as you mention, Doug Fir-Larch.

What is the difference between rooftop and roof deck?

A roof deck is a rooftop patio or garden area. These outdoor, constructed spaces are located on the top of some homes, but are known mainly for being connected to the rooftop level apartments known as penthouses. … A roof deck is typically is a rooftop patio or garden area. The deck itself is often made of wood or vinyl.

What material is used for rooftop decks?

There are various types of roof deck materials to choose from but the commonly used materials for residential are Plywood or Tongue & Groove and on commercial roofs, steel, concrete and cement.

What is best material for roof decking?

• Heavy Duty Rubber Roof Tiles. Rubber is one of the most durable materials out there, and rubber roof decking tiles are no different. …
• Plastic Flow-Through Tiles. …
• Faux Grass.

What does it mean to Resheet a roof?

When doing a roof replacement project, there’s a chance that your contractors will propose to remove the existing roofing material and re-sheet it with plywood. This step is known as roof re-sheeting.

Does roof need plywood?

Aside from shingles and underlayment, plywood decking is one of the most important components in your roof. The plywood decking is integral in keeping your home free of unwanted water and mold. If the plywood has gotten wet, it can have a disastrous effect on the rest of your roof, especially the shingles.

What is Resheeting a roof?

Re-sheeting involves removing the old shiplap substrate and replacing it with plywood or OSB. Before that can be done, we need to make sure that the roofing structure itself is in sound condition. This is an important step if you are planning on switching to a heavier type of roofing system, such as slate or tile.

What is a Perling?

A purlin (or historically purline, purloyne, purling, perling) is a longitudinal, horizontal, structural member in a roof. In traditional timber framing there are three basic types of purlin: purlin plate, principal purlin, and common purlin.

What is roof Valley?

A roof valley is formed where two roof slopes meet. Water collects in a valley to flow off the roof. Your choice of valley installation method is critical because, when improperly installed, valleys are risks for serious leaks. Essentially, there are three main ways to shingle a roof valley: woven, closed-cut and open.

What is parapet roof?

A parapet is a barrier that is an extension of the wall at the edge of a roof, terrace, balcony, walkway or other structure. The word comes ultimately from the Italian parapetto (parare ‘to cover/defend’ and petto ‘chest/breast’).

What is the difference between fascia and trim?

Trim is the material used to encase windows and doors, among other features, on a home’s exterior. Fascia is a horizontal or angled board that encloses the edge or face of the projecting eaves.

What is the overhanging edge of a roof called?

What Is a Soffit? Your roof by necessity, will often times extend over the walls of your home. This overhang can go by a few names, such as the house eaves or the rafters of your roof. The underside of this overhang, when given a finished appearance, is known as the soffit, which means “something fixed underneath”.

What is the difference between fascia and eaves?

Eaves—The lower edge of a roof (often overhanging beyond the edge of the house). Fascia—A decorative board extending down from the roof edge either at the eave or at the rake.