what is course roof

Course: A row of shingles or roll roofing running the length of the roof. Coverage: The number of layers of material between the exposed surface of the roofing and the deck; i.e., single coverage, double coverage, etc.

Full Answer

What is a starter course on a roof?

Do this at both ends of the roof, and snap chalklines through both sets of marks. The 7-in. line indicates the top of the starter course; the 12-in. line indicates the top of the first course of shingles. Starter courses can be three-tab shingles with the bottom 5 in. cut off or a starter strip that comes on rolls in various widths.

What is a complete roofing system?

Course: A row of shingles or roll roofing running the length of the roof. Coverage : The number of layers of material between the exposed surface of the roofing and the deck; i.e., single coverage, double coverage, etc.

What is a built-up roof?

Roof Inspection Course BUNDLE All 3 Roof Certification Courses at 30% OFF Enroll in This course This is a Course Bundle that includes all 3 NCI Roof Inspection Certification Courses at 30% OFF Purchase all 3 as a bundle for a discount. Retail Price of all 3 class is $6000 per student when purchased individually.

What is a curved roof and how is it used?

Mar 22, 2022 · The technician was able to identify loose laps on the roof as the source of the leak. The repair was then completed using a three-course solution comprised of Simon Roofing’s self-manufactured product designed specifically for EPDM roofs. This included coating the 100 sq. ft. around the repair that allowed for a 2-year repair warranty.

What is a stack of shingles called?

Bundle: A package of shingles. There are typically 3, 4 or 5 bundles per square. Butt edge: The lower edge of the shingle tabs.

What is the edge of a flat roof called?

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. Felt—The bituminous paper used by roofers, usually made of a combination of asphalt and either paper or rags.

What is a lap in roofing?

Lap: To cover the surface of one shingle or roll with another. Lap cement: An asphalt-based cement used to adhere overlapping plies of roll roofing.

What is the butt of a shingle?

Butt – the portion of the shingle exposed to the weather, sometimes called the “tab” of the shingle. Cant Strip – a 45 degree beveled wood, fiberboard, or metal strips at the junction of the roof and a vertical surface used to break a right angle.

What is gable roof type?

A gable roof is a type of roof design where two sides slope downward toward the walls – and the other two sides include walls that extend from the bottom of the eaves to the peak of the ridge. The purpose of your home's roof is to protect the entire structure (and you) from weather.

Which flat roof is best?

EPDM Membranes Quite possibly the best flat roofing membrane, EPDM is a relatively low-cost flat roof material that offers a number of significant advantages. Clean, straightforward installation, incredible strength, a long lifespan, and a smart finish combine to make EPDM membranes a difficult one to beat.Nov 18, 2020

What is flashing in roofing?

What is flashing? Flashing, made from either metal or a rubber membrane, is a part of the system that keeps water from entering through holes created in your roof. All roofs have penetrations: openings or holes in the roof surface which allow for elements like chimneys, flues, skylights and vents.

What is the roof cap called?

The point where these two sides meet forms the apex of the roof, and is known as the ridge or ridge line. A ridge cap fits over the joint between these two edges to keep rain and snow out of the home. It also helps to finish off the look of the roof by creating a tightly sealed joint along the two sides.Mar 19, 2022

What is roof ridge?

Roof Ridge: The roof ridge, or ridge of a roof is the horizontal line running the length of the roof where the two roof planes meet. This intersection creates the highest point on a roof, sometimes referred to as the peak. Hip and ridge shingles are specifically designed for this part of a roof.

What triggers a shingles outbreak?

Causes of shingles Shingles is caused by the reactivation of the varicella-zoster virus, which is the virus that causes chickenpox. After you have had chickenpox, the varicella-zoster virus lies dormant (inactive) inside your body. It can become reactivated at a later stage and cause shingles.Mar 18, 2022

Can you get shingles in your private area?

A person can get shingles on the genital area, but this is uncommon. Aside from blisters, genital shingles may also cause bladder and bowel problems. While shingles can cause genital lesions, other conditions, such as syphilis and genital herpes, can also have a similar presentation.

Can you get shingles twice?

A. Yes: although it's uncommon, you can get shingles multiple times. Shingles is caused by the varicella-zoster virus, which is the same virus that causes chickenpox. The virus sticks around in your body after chickenpox symptoms go away, lying dormant in your nerves, held in check by your immune system.Oct 1, 2021

What is a course on a roof?

Course: A row of shingles or roll roofing running the length of the roof. Coverage: The number of layers of material between the exposed surface of the roofing and the deck; i.e., single coverage, double coverage, etc.

What is a shed roof?

Shed Roof: A roof containing only one sloping plane. Has no hips, ridges, valleys or gables. Single Coverage: Asphalt roofing that provides one layer of roofing material over the deck. Slope: The degree of roof incline expressed as the ratio of the rise, in inches, to the run, in inches.

What is flashing on a roof?

Flashing: Pieces of metal used to prevent seepage of water into a building around any intersection or projection in a roof such as vent pipes, chimneys, adjoining walls, dormers and valleys. Galvanized metal flashing should be minimum 26-gauge. Flashing cement: See Asphalt Roof Cement.

Why vent a cold roof?

In a cold climate, the primary purpose of ventilation is to maintain a cold roof temperature to avoid ice dams created by melting snow and to vent any moisture that moves from the conditioned living space to the attic. (See “ Energy Smart Details ” in FHB #218 for more on ice dams.)

What type of insulation is allowed under a roof deck?

The code also allows for air-permeable insulation, such as fiberglass or cellulose, to be used under the roof deck as long as rigid foam is used above the roof sheathing. Flash-and-batt (or flash-fill) assemblies are also allowed.

Why vent attic?

Vent the attic. A key benefit of venting the attic is that the approach is the same regardless of how creative your architect got with the roof. Because the roof isn’t in play here, it doesn’t matter how many hips, valleys, dormers, or gables there are . It’s also easier and often less expensive to pile on fiberglass or cellulose insulation at ...

What is Accuvent insulation?

The AccuVent soffit insulation baffle is made of rigid recycled plastic. It’s more durable than other foam-based products and installs quickly with staples. These baffles should still be air-sealed with spray foam, but they’re a good option if you’re looking for a stock product.

What type of underlayment is needed for asphalt shingles?

To keep moisture out of the roof assembly, a roofing underlayment with 1 perm or less (class-II vapor retarder) must be installed under the shingles.

Can you spray foam on a roof deck?

If you’re spraying foam on the underside of the roof deck, be sure you’re using the right product. Closed-cell spray foam works in all climates, but especially well in climate zones 5 through 8, where high R-values are desired and where air-impermeable insulation also must be a vapor retarder.

Who is the scientist who explains when to vent your roof?

Building scientist Joseph Lstiburek explains when to vent your roof, when not to, and how to execute each common roof-venting approach successfully. So much information has been devoted to the subject of roof venting that it’s easy to become confused and to lose focus.

What is the goal of an unvented roof?

The goal in an unvented roof is to keep the roof deck—the prin- cipal condensing surface in roof assemblies—sufficiently warm through the year to prevent condensation from occurring. In most climates, builders have to insulate the roof sheathing to prevent condensation from occurring within the assembly.

What type of insulation is allowed under a roof deck?

The code also allows for air-permeable insulation, such as fiberglass or cellulose, to be used under the roof deck as long as rigid foam is used above the roof sheathing. Flash-and- batt (or flash-fill) assemblies are also allowed.

Can you spray foam on a roof deck?

If you’re spraying foam on the underside of the roof deck, be sure you’re using the right product. Closed-cell spray foam works in all climates, but espe- cially well in climate zones 5 through 8, where high R-val- ues are desired and where air- impermeable insulation also must be a vapor retarder.

What is hip roof?

Hip roofs often include design elements like front gables to highlight a porch or entryway, or dormers or crow’s nests to add extra storage or living space underneath the roof. They can be crafted from most standard roofing materials like asphalt shingles, standing seam metal or metal tiles, or clay or concrete tiles.

What does a roof do to your home?

What’s more, the type of roof that you have can also make your home more energy-efficient, more weatherproof, and provide extra storage or even additional living space in the form of an attic.

What materials are used for a gable roof?

Basic gable roofs can use all types of roofing materials, including but not limited to asphalt shingles, cedar shingles or shakes, slate, and clay or concrete tiles – especially if you are building a standard or basic gable roof. This versatility makes gable roofs even more cost-effective.

Why are gable roofs not recommended?

One thing to note is that gable roofs might not be advisable in areas that regularly experience high winds or are located along some of the more common hurricane corridors. This is because the overhanging eaves on a gable roof can suffer from wind damage roof issues or under heavy rainfall.

What is a Jerkinhead roof?

Higher pitched jerkinhead roofs also allow for more living space or storage space under the roof, thus adding to their appeal. This sort of roof can be crafted from nearly any standard roofing material, including asphalt or wood shingles, metal shingles, slate, or even composites.

Why are gable roofs so popular?

Another reason that gable roofing is popular because the triangular shape allows snow, rain, and ice to slide right off , which is beneficial in most regions. The shape also allows for attic storage or even additional living space under the roof, or vaulted ceilings.

What are the different types of gable roofs?

There are four main types of gable roofs – side gables, crossed gables, front gables, and Dutch gables. Side gables are the most common and simple style of gable roof, with two sides pitched to form a triangle. If a side gable roof is left open in the middle it is referred to as an open gable roof, or closed in for a boxed gable roof.

What is the purpose of tar strips on a roof?

Adhesive tar strips help prevent shingle blow-off from harsh winds (along eaves as well). A straight line to properly orient each new row of shingles. Thicken the shingle layers sticking over the rake edge to help prevent drooping. Without starter strips or starter shingles, water will likely penetrate your roof edge.

What is starter shingle?

Starter shingles (also known as starter strips) are a key component to your new roofing system. A starter strip is an asphalt based shingle utilized to waterproof the eave and rake edges of your home during a re-roof. Take a look at your roof and you’ll see how the field roofing shingles are overlapped to create seamless flow ...

Can you put underlayment on a roof without starter strips?

Without starter strips or starter shingles, water will likely penetrate your roof edge. A good underlayment, like GAF Tiger Paw synthetic hybrid underlayment goes a long way to reducing damage. But it is only a secondary layer of protection that functions robustly when the water that reaches it is a low enough quantity.

Do you need to include shingles in a new roof?

When having a new roof installed on your home you will need to verify that your roofing contractor has included all of the critical components, other than shingles, of the roofing system in your contract price. Some contractors will offer you a very appealing price but in the end they have removed some of the most critical components ...

Can shingles overlap?

But along the eave line, roofing shingles come to an edge and can’t be overlapped. To prevent water penetration, we install starter shingles or starter strips. Where the shingles on the eaves butt up against each other, these starter strips provide the overlap function.

How Hard is it to Shingle a Roof?

Adding shingles onto a roof can be challenging and dangerous. It’s important to wear the appropriate safety gear such as a harness and a line attached to the ridge or staging with safety rails around it to protect yourself from falling.

Should Shingles Overhang the Drip Edge?

Overhanging shingles over the drip edge about a half-inch can help with surface tension. Plan out how you will lay your shingles beforehand, here’s how we recommend you approach your installation.

Installing Roof Shingles in 11 Steps

To start installing shingles, line up aluminum drip edge flush with the edge of the roof and make a pencil line at the top on each end of the house.