What is ridge board on a roof?
Ridge Board as The Critical Point in Roofing System The ridge board is the key to all truss sections. It is horizontal primary support, which is usually made of timber or metal. In this component, the two ends of the rafters meet each other. Without this ridge board, all roof parts will not form a solid frame for your house protection.
What is a re-roof cover board?
Roof cover boards have a variety of uses within a roof system: Cover boards can also be used in re-roof applications where the board is installed directly on an existing roof system to provide a suitable substrate for the new roof system. There are times that a roof system will choose not to have a cover board installed for a few reasons:
What are the roofing parts of a house?
Rakes are the roof parts that have the sloping edges attach at the ends of the gable. This component certainly forms a cover for your house’s top edge, precisely on the wall that meets the roof. This structure is useful for protecting the lower part from the rainwater flow. 7. Ridge Board as The Critical Point in Roofing System
What is roof decking?
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 parts of roofs called?
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. They are always at a lower slope than the adjoining roof planes. Dormer: This is a roof feature that projects out from the roof face.
What is the boards under roof shingles called?
Decking. Also known as the wood sheathing, this is the base on which everything else is laid on. It's essentially the foundation of the roof. This is typically made with OSB or oriented strand board or plywood that's attached with nails onto the rafters.
What do you call the wood around the roof?
Sheathing—The decking material (usually sheets of plywood), which is nailed to the rafters, and to which shingles or other outside roofing materials are secured.
What are the 3 main components of a roof?
Structural Layers of the Roof It incorporates joists, trusses, and rafters. Together, these three types of beams make up a framework that gives the roof its shape.
What is board under soffit called?
The vertical board that hangs down from the edges is called the “fascia board”.
What is wood under roof tiles called?
The fascia board A fascia board is the board, often made from wood, that sits just under the roof. The lowest part of roof sits on it.
What is sheeting on a roof?
Another name for roof sheathing is roof decking. It's the strong layer of wood boards that are attached to your roof's trusses and joists. Your roofer is going to attach the shingles to these planks or squares of wood.
What are 5 parts of the roof frame?
In sloped roofing structures, five essential components must come together to allow the roof to do its job and protect your home from the elements....Use this list from Trinity Exteriors to navigate your way around your roofing system.Drainage. ... Roof Structure. ... Sheathing. ... Roof Covering. ... Flashing.
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 the main components of a roof and their functions?
Basic Parts of a Standard Roof and Their FunctionsRafters. These are the frames that make up the skeleton of the roof. ... Decking Boards. Nailed to the rafters, these flat pieces of wood provide a level surface on which to lay the covering. ... Underlayments. ... Covering. ... Flashings.
What are the roof members?
First is the frame of the roof structure. The truss is the “skeleton” of a roof, made of a series of parallel beams. The rafters are the supporting beams that run from the apex to the bottom of a roof, holding up the truss. Eaves are the edges of a roof, typically overhanging the vertical exterior walls of a building.
What is residential roof?
A residential roof is a complex system of layers designed for one specific purpose: to protect the house and everything inside. Each roofing component plays a specific role that is crucial to the overall roof design. As a homeowner, it is not vital that you know every tiny part of your roof. However, it is good to have a general idea ...
What is the gable end of a roof?
Gable end: The gable end of the roof is the edge of a roof above the gable.
What is roof to wall intersection?
Roof to Wall Intersection: Much like it sounds, this is an area where a roof plane meets a wall of the home. This can be either a sidewall connection or a headwall connection. When looking at a roof dormer, the sidewall would be on each side of the dormer and the head wall would be along the bottom of the dormer.
What is the most commonly used underlayment for a roof?
Felt: This is the most commonly used underlayment for most roof systems. Today, more and more roofs are being installed with a synthetic felt or self-adhering underlayment.
What is fascia metal?
If your home has vinyl siding and soffit, you’ll most likely have a fascia covering which is often called fascia metal and is generally made from aluminum trim coil with a wood grain texture, colored PVC coating. Felt: This is the most commonly used underlayment for most roof systems.
What is sidewall flashing?
Sidewall: One of the walls used in roof flashing, specifically in base and step flashing. Sidewalls are vertical walls intersecting with the roof deck surface. It connects the edges of a sloping roof deck. Counterflashing: Flashing that is embedded into or sealed against a wall or other vertical structure and is lapped down and over ...
What is the eaves of a house?
Eave: Where the roof hangs over the edge of the exterior wall. Fascia Board: Generally a 1” x 6” Pine board which covers the ends of the rafters. Oftentimes, the fascia board may have a sub-fascia which is typically a 2×4 or 2×6 pine board. If your home has vinyl siding and soffit, you’ll most likely have a fascia covering which is often called ...
What type of roof cover board is best for a commercial roof?
Types of commercial roof cover boards on the market include: Gypsum Fiber – fiber-reinforced gypsum board without a fiberglass mat facer.
What are Commercial Roofing Cover Boards?
Cover boards are thin substrates, which can be made from a variety of materials, that are installed between the insulation and membrane layers on a roof system.
Why do you put a cover board on a roof?
When there are irregularities across the roof substrate surface, the installation of a cover board helps to ensure that those irregularities don’t transfer through to the roof membrane, ensuring a more aesthetically pleasing roof system.
Why don't roofs have cover boards?
Low Traffic - the roof system does not have a high amount of foot traffic or the need for high impact resistance. Cover boards are often overlooked during the design ...
What is thermal barrier?
A thermal barrier - which is when the cover board is installed directly to the deck to enhance internal fire resistance.
What is plywood OSB?
Plywood/OSB – compressed layers of wood bound with a resin, sometimes with veneer
Do you walk boards in foam?
Thoroughly walk the boards in or weight them when adhering the cover board in foam adhesive – this ensures the cover boards form a suitable flat substrate for the membrane.
What is a wood deck that is glued to the roof rafters called?
Carpenters nail plywood deck (sheathing) to the roof rafters—in this case, a series of roof trusses. TFoxFoto / Shutterstock.com
Where is the ridge board on a roof?
The ridge is the peak where two sloped roof sections meet. Part of a roof’s frame, a ridge board runs horizontally along the peak of a sloped roof. Essentially the spine of a conventional stick-framed roof, the ridge board is sandwiched between the meeting ends of the roof rafters.
What is the horizontal underside of a roof overhang?
Soffit. A soffit is the horizontal underside of a roof overhang, an archway, a staircase, a ceiling, or a similar architectural component. A little more trivia: From the Italian “soffitta” for under and “figgere,” to fix, the word “soffit” dates back to the days of early Palladian architecture.
What is a roof rafter?
Roof rafters are the main supports of a roof. Lisa S. / Shutterstock.com
What is the thicker end of a shingle?
Here is a closer look at common roofing terms: The exposed end of a shingle. With wood shingles or shakes, this is the thicker end. The butt of a shingle is the end that faces ...
What is the ratio of a roof's rise to each foot of run?
Roof slope is expressed as the ratio of a roof’s rise (vertical distance) to each foot of run (horizontal distance). A “4-in-12 pitch” means the roof rises 4 inches for every 12 inches of horizontal distance. The word “pitch” was first used in the early 17th century to denote “the highest point.”.
How many inches does a roof slope?
A roof’s slope is the number of inches it rises for every 12 inches of horizontal “run.”. A roof with a “4-in-12 slope” rises 4 inches for every 12 inches of horizontal run. The same roof has a 4/12—or 1/3—pitch. The terms “pitch” and “slope” are simply two different ways of expressing the same measurement.
What is the roof covering made of?
3. Fascia, the Blocking System from Moisture. The fascia is part of the roof, which is usually made of wood. However, nowadays, it is often made of vinyl or aluminum, which serves as a protection cover at the rafters’ end. Fascia is one of several roof parts that can be seen from the exterior of the house.
What is a rafter in a roof?
Rafters are parts of a roof truss set diagonally that meet at the peak of the frame and also resemble the triangular shape. These members function as the supporting components for the decking system as well as holding the loads above it. 3. Fascia, the Blocking System from Moisture.
Why do people layer their roofs?
For the umpteenth time, people are using the layering process to protect the roof parts from various things that can damage and also reduce the robustness of the existing roofing system.
What is underlayment on a concrete deck?
The underlayment is a layer that is attached right over the concrete decking. Generally, the material used is felt, a waterproof paper that functions to provide double protection to the roof parts underneath.
What happens if you don't have a ridge board?
Without this ridge board, all roof parts will not form a solid frame for your house protection.
What are the other essential roof parts?
The other essential roof parts are the spaced sheathings. It is a system of installing the flat wooden panels arranged sequentially to form a ladder pattern.
What are the parts of a roof that are generally installed horizontally?
Based on the diagram above, you can see that a roof has complex anatomy which includes: 1. Collar Beams as The Intersectional Roof Parts. Collar beams are roof parts that are generally installed horizontally to connect the two sides of the rafters.
What is roof covering?
Covering. Your roof’s covering is the part that’s most visual from the outside. It’s also primarily responsible for protecting your home from weather damage. Today, roof coverings consist of a variety of materials, including: Shingles (asphalt) Metal. Steel.
What is decking on a roof?
The decking is attached with nails onto the rafters, creating the foundation of the roof system.
What is a rafter?
Think of the rafters like the skeletal system of your roof. Rafters are designed as a sloped structural unit using mainly 2x10s or 2x12s and extend from your home’s ridge to the wall plate.
What is a vent stack?
Plumbing Vent. Many homes have a roof plumbing vent , also called a vent stack, which helps alleviate pressure from building up in your plumbing system. When a plumbing system has poor ventilation, water, and even waste can get backed up in your pipes more easily.
What is the most common material used for sheathing?
The most common materials used for sheathing are plywood and oriented strand board (OSB). Roofers use a nail gun to secure individual panels down, making your roof into one cohesive unit.
What is a gutter system?
Gutter systems guide rainwater off your roof and direct it away from your home.
Why is it important to know the parts of a roof?
Knowing all the parts of a roof can help you save money, diagnose heating and cooling issues, and protect your home from water damage. Knowing your roof’s components helps you better understand repair costs (and avoid roofing scams ), plus diagnose or be on the lookout for heating, cooling, water, and plumbing problems.
How many different types of roofs are there?
Discover the 36 different types of roofs for a house. This gallery includes terrific roof design illustrations so you can easily see the differences between types of roofs. Includes A-frame, bonnet, gable, hip, mansard, butterfly, valley combination, shed and more.
What is a steep pointed roof?
It’s steep, pointed roof which extends all the way to the ground or close to the ground. The roof makes up much or all off the walls of the home. It’s a very simple roof design and is inexpensive because the roof serves as both roof and walls.
How many sides does a box gable roof have?
Box gable roofs have two sloping sides that meet to form a ridge, with a triangular
What is a skylight?
Skylight: A window installed on the roof or ceiling for the purpose of daylighting. Chimney Flashing: A waterproofing seal installed at the intersection of the roof and chimney and used to prevent moisture penetration.
What is a cross section diagram of a house roof?
Custom cross-section diagram of a house roof showing the many different parts of a residential roof including structura l parts , the various layers, exterior and various roof features such as skylight and chimney.
What is bonnet roof?
The bonnet roof is identified with the extending ledge around the base of the roof.
What is the vertical structure that ventilates smoke and combustion gases from a fireplace, boiler or stove to the outside?
Chimney: A vertical structure through the roof that ventilates smoke and combustion gases from a fireplace, boiler or stove to the outside atmosphere. Collar Beam: The horizontal beam connecting two rafters that intersect at the ridge.
What is exposure on a roof?
Exposure – The area on any roofing material that is left exposed to the elements.
What is granules in roofing?
Granules – Crushed rock that is coated with a ceramic coating and fired, used as top surface on shingles.
What is a fiberglass mat?
Fiberglass Mat – Fibers condensed into strong, resilient mats for use in roofing materials.
What is deck armor?
Deck Armor – Premium breathable roof deck protection. It provides a critical extra layer of protection between your shingles and your roof deck — to help prevent wind-driven rain (or water from other sources) from infiltrating under your shingles and causing damage to your roof structure or to the inside of your home.
What is the gable on a house?
Gable – The upper portion of your home’s exterior wall that comes to a triangular point at the ridge of a sloping roof.
What is a dormer?
Dormer – A structure that protrudes from the plane of the roof slope, often with the addition of windows.
Where is the buttlock on a vinyl panel?
Buttlock – Located on the bottom edge of a vinyl panel which locks onto the previously installed panel.
