Flashing can be installed as multiple square pieces that are added in between every row of shingles or whatever type of roofing material is utilized surrounding the dormer or as a strip that is placed around the projection and underneath the roofing material around it.
Flashing is a critical element of your roofing system that keeps your home safe from moisture damage. For more information or to schedule a roof inspection for your home, contact Hedrick Construction. We are conveniently located in Huxley, Iowa, and serve Ankeny, Ames, and the surrounding areas. The color we picked for the shingles is beautiful. We would recommend your company to anyone. Very happy with everything.
The crew that was here and worked on the roof was great! The roof looks great! Share this with a friend:. Recognized by the BBB, Hedrick Construction has a reputation for getting the job done right, on budget, and on time.
What is Roof Flashing? Why is It Important? Roof Flashing What is flashing? What materials are used for flashing? What areas of the roof need flashing? You did a fantastic job! Popular Posts. Roofing professionals usually apply it with a trowel. Before you learn how to install roof flashing, you need to understand that there are three primary techniques, each suitable for different areas on the roof. Disclaimer : Roof flashing should always be installed by professional roofers, who understand best practices, safety requirements and the building codes and laws in their area.
These instructions are only to help homeowners understand what to expect from their roofing professional.
Step flashing is the most time-consuming of all flashing jobs on the roof because you must complete it step-by-step as you shingle up the roof. There are a few general best practices you need to know. First, step flashing must be installed before the siding, so that the siding can cover the top of the flashing.
If this is a repair job, the siding must also be removed and replaced with the flashing. Also, before you start installing your flashing, you need to look to see if the wall in question has a corner on the roof face, as in the image below.
If it does, follow our first installation procedure. If a wall corner is on the rooftop, you will need to create a corner flashing piece using a typical step flashing piece. These instructions will tell you how to create a corner piece and how to install step flashing generally:. Instead, you will need to install kickout flashing to help guide the water into the gutter. Instead, buy a premade kickout flashing piece. Chimney flashing should be installed at the same time the mason is laying the brick and mortar, or the roofer will have to cut a ridge out for the counter-flashing.
Then, the roofer will have to seal this indent up, after placing the flashing. Installing a roof plumbing vent is typically an easier task than flashing a chimney. Here is how you do it:. Do you need information about how to install the other kinds of roof flashing? IKO has already explained how to install drip edge flashing and how to install metal valley flashing. On a typical re-roofing job, where you are replacing an old or underperforming roof, it is wise to replace all flashing.
However, there are limited circumstances where a roofer may decide to reuse flashing. For example, if a roofer is doing a repair job on a relatively new roof and the flashing appears to be in good condition, it may be salvaged. To decide whether or not your flashing can be reused, your roofer will need to remove the flashing carefully to prevent damaging it.
Your roofer will then inspect it before deciding to reuse it. If your roofer is replacing the shingles around your flashing, the flashing must be removed, at least temporarily, to allow for proper installation.
Some types of flashing, like step flashing, may be more challenging to reuse because it is harder to separate from the old shingles without denting or otherwise damaging it.
Typically, a roofer will replace step flashing on a new roof. Also, your roofer should not layer new flashing on top of the old flashing. You should only have one layer of flashing on a roof at a time. You might also wonder what damaged flashing looks like and when it should be replaced. Check over your flashing and look for:.
That depends on a few factors. If the original flashing is in good condition and can be removed without damaging it, it is possible to reuse it. Fixing roof flashing, just like installing flashing, is best left to roofing professionals. You should not take risks with your roof. A professional can help you solve all of your roof flashing problems or answer the questions you have about your specific roof. All rights reserved.
The information on this website is subject to change without notice. IKO assumes no responsibility for errors that may appear on this website. IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. However, due to manufacturing variances, the limitations of your monitor resolution and the variation in natural exterior lighting, actual colors may vary from the images you see.
To ensure complete satisfaction you should make final color selections from several full size shingles and view a sample of the product installed on a home. Please refer to our Legal Notices for U. Location set to view all. Show All Products. Roof Flashing There are almost as many types of roof flashing as there are parts of the roof! Long pieces of continuous flashing will have trouble flexing as the home expands and contracts in the changing seasons.
If left as is, it could break or warp and fail to keep water out. Therefore, long pieces have built-in expansion joints so they can move with the home. Base flashing : Some roof features, such as chimneys, require two pieces of flashing. This ensures that rain always meets a flashing surface that directs it downwards.
Plus, it is notoriously tough to install flashing around a chimney. There is another benefit to two-part flashing: When the roof materials naturally expand and contract with weather changes, the two pieces can move, so the whole system stays secure.
The base flashing or apron flashing is the bottom piece. Counter -flashing: Placed opposite to base flashing, or above base flashing, counter-flashing completes the two-part team. Step flashing : Step flashing is a rectangular piece of flashing bent 90 degrees in the center.
It is used for roof to wall flashing. Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall. Learn how to install it below. Continuous copper flashing on a shingle roof. Skylight flashing : While some skylight manufacturers include flashing in their products, sometimes roofing professionals have to create it or purchase it separately.
Valley flashing : Open valleys have metal flashing to protect this critical area of the roof. Drip edges : The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. A cap or counterflashing is also typically installed so that it laps the base flashing at least 4 inches mm. Cap flashing terminates in a continuous reglet in concrete walls, or interlocks with a through-wall cap receiver in masonry walls.
In addition, continuous through-wall flashing is typically used underneath the coping to prevent leakage through the joints and cracks in the coping. Gravel stops, which are typical on flat roofs topped with a gravel surface finish, are flashed with a metal gravel stop and hold down cleat that wraps around from the edge of the roof to the face of the roof fascia.
Gravel stop flashing typically has a raised perimeter lip to contain gravel on a flat roof. The drip edge at the bottom of the face directs water away from the structure. Flashing is critical at the heads of openings for windows and doors to prevent water penetration. It is also required at sills to prevent moisture from potentially entering the wall underneath.
A drip is commonly used to guide water away from the opening and to prevent capillary action, the natural tendency of water to make its way into joints due to gravity. A height differential slope of at least 6 inches to 9 inches mm to mm is typical from the inside of the wall to the exterior in order to drain any unwanted moisture away from the wall.
When selecting flashing, it is important to take into consideration the durability, appearance, and potential galvanic action due to contact between different metals. Flashing is generally included in sheet metal specifications, which may include scuppers, gutters, downspouts, skylights, and decorative items. Flashing types are categorized by how they are installed, either internal concealed or external exposed.
They can also be categorized by the material they are made from or by location: what part of a building they are installed in. In order to prevent water from leaking into a roof assembly and eventually into the interior of a building, flashing needs to be installed along roof edges, where roofs change slope, and where roofs are penetrated by chimneys, vent pipes, and skylights.
Exterior walls must also be flashed where leaking may occur. This includes door and window openings and along joints where materials meet in the plane of a wall. Flashing Materials Materials used for flashing include copper, galvanized steel. Common Flashing Locations Some common locations for flashing include roof ridges or valleys, around chimneys, at masonry parapets, gravel stops, and at the head of openings or water tables.
Roof Ridges and Valleys Flashing at roof ridges or valleys can be either concealed or exposed.
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