how to prep a roof for shingles

Step 4 Also, any wind-driven rain blowing on the rake edge would cross the top flange of the drip edge and go on top of the underlayment instead of beneath the underlayment where it could potentially cause a problem. If you need to make any joints because the length of drip edge is not long enough to fit down the whole length of the eave then simple overlap the two pieces and bend the aluminum into place. Overlap each metal piece by at least 150 mm (6″) and use asphalt plastic cement under each section of overlap. Support wikiHow by Today I’m going to discuss what you as a homeowner can do to prepare for a roof … 7. The roof on my garage needs new shingles. Next, use 1 ¼ inch nails to secure some metal edging to the perimeter of the roof. Because the nails must penetrate the ridge caps and the last course of roof shingles below, you’ll need longer nails to fully penetrate through them to the roof deck. The recommended flashing material is a 28-gauge galvanized metal or an equivalent corrosion resistant, non-staining material (check with local codes). You also need to make sure there is no debris lying around because this too can cause damage to your new roof. It is called for making specific that you full enough roof prep work task prior to developing roof tiles or else you are taking the day of the protection of your brand-new roof. Shingles are the most common product that we put on our roof that is cost-effective. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles. Well, you’re in luck! You can also read our article describing how to replace shingles. When it’s time to replace your roof, the amount of information available can be overwhelming. This Project Guide is a combination of those two articles, and it covers replacing the existing roof decking, installing underlayment and ice dam protection, laying the first row, laying shingles in the field, flashing, ridge shingles and vents, and more. Push the shingles down to the roof jacks. Take a look at IKO’s Pro4 Roofing Components to see how the various roof system elements described above work together. Well done! 5. Although this seems to contradict the overlapping principle, installing the drip edge over the underlayment at the rakes creates a clean roof edge and provides the underlayment attachment with increased resistance against wind uplift. 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. Secure the roof boards. Having a clean, flat deck surface will help ensure that the newly shingled roof will likewise appear smooth and flat when finished. Make sure the overlap is correct on the side drip edges. Use the chalk-like to make a straight line vertically every six inches. This website uses cookies to provide necessary functionality and to improve your online experience. But, even if you fashion your own on-site by cutting standard shingles to size, both serve critical functions at the roof’s eave. The most common closed valley is a “closed cut” valley, where shingles are installed on the entire roof area on one side of the valley first, with each shingle course extending at least 12″ through the valley centerline. 7. Obviously the first part of your roof preparation before installing roof shingles is to rip off the hold or damaged shingles that you are replacing. Use the chalk line to snap a straight line vertically every 6 inches. Once everything that goes beneath the shingles has been properly prepared and installed, it’s finally time to learn how to shingle a roof. Watch for soft areas as you walk on the roof. To ensure we feature the products available in your area, please select your country and state/province. 9. Center a minimum 610 mm (24″) wide, minimum 28 gauge pre-finished/galvanized metal valley liner in the valley, and fasten with only enough nails to hold it in place, nailing at the edges only. A storm can rip some off the roof, or time can break them down. You have actually currently ended up the roof prep work prior to mounting roof tiles and also are prepared to roof shingles your roof. 4. IKO assumes no responsibility for errors that may appear on this website. Valleys can either be open or closed – open valleys are not covered with shingles, closed valleys are. 8. For longer roof performance, IKO strongly recommends open metal valleys. A most effective material to start with is waterproof shingle underlayment (WSU). Contractor Prep Work Measure the Roof & Create a Materials List. Step Six: Nail down each valley shingle at least two inches (50 mm) back from the chalk line. IKO’s RoofGard-Cool Grey Synthetic Roof Underlayment gives your roof secondary layer of protection. Obviously the first part of your roof preparation before installing roof shingles is to rip off the hold or damaged shingles that you are replacing. Both offer you peace-of-mind protection beneath the shingles. To be fully effective, it should extend up the roof to a point at least 24″ inside the vertical extension of the interior side of the wall. Ice and water shield will cost you a fair amount at around $50 per square foot but the job it does is invaluable and a vital step when you are finishing your roof preparation before installing roof shingles. building paper, tack or staple it down, and you’re ready to shingle. Every 5 inches, make a new mark until you get to the rop of the roof. Begin at the eaves and measure the length of the roof and its width. It’s critical to follow the manufacturer’s instructions for the specific roof shingle because not all shingles have the same exposure (the part of the shingle that’s visible once installed), offset (the lateral distance between joints in successive courses sometimes called ‘stagger’ or ‘edge-to-edge spacing’) and/or nail placement. Regardless of the asphalt shingle type or style you’ve chosen, the process is basically the same as mentioned earlier – you start at the bottom and overlap as you work your way across and up the roof. Asphalt roofing shingles simply rely on the force of gravity to shed water from rain or snow melt. Roll the mesh out over 30-lb. If your eave is one straight length, then pick an end, and work to the other. Professional Professional Tools & Support, there are many benefits to installing a roof underlayment, flash around plumbing stacks and attic vents, Apply flashing materials in concert with the shingle installation procedure, install a preparatory course of starter shingles. Drip edge is installed under the ice and water at the eaves and on top of the ice and water and underlayment on the rakes. It is vital to ensure that you complete adequate roof preparation before installing roof shingles otherwise you are risking the integrity of your new roof. Part Three of my Rental Rehab SeriesPart Onehttp://tiny.cc/116exyPart Twohttp://tiny.cc/226exyMusic: CityRain - BezelBeatshttp://tiny.cc/8orfxy For hips, start at the bottom and work upslope. Nail the shingle in place with four nails so the shingle overlaps the drip cap on the end and bottom of the roof by 1/2 to 3/4 inch. If a shingle is torn or cracked, glue the broken piece back in place using roofing cement. Do not fasten the flashing piece to the vertical wall. IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. Ice dam protection at the eaves. Covering the joints and valleys. A poorly prepared roof can quickly lead to holes and cracks that will in turn to lead to a leaking roof. Now cover the remaining side of the roof with felt and also cover over the roof vent hole you have created. Center a 914 mm (36″) width strip of an ice and water protector membrane in the valley. Roof shingles don't last forever. Overlap your felt by a few inches and completely cover one side of the roof. You may even appreciate why it’s recommended to hire a professional! In the dictionary, “to shingle” is defined as “to lay out or arrange so as to overlap.” So now let’s look at the sequence of overlapping roof construction components to see how this applies. The last ridge cap piece should be nailed in place and, since this will be the only place on the roof where the nails are directly exposed, the nail heads should be sealed and covered with a suitable asphalt roof cement. Shingles are laid from the bottom edge of the roof in rows, each row overlapping the one below it all the way to the top. Secure the Attic You’ve nailed in the last field shingle and you can see the finish line from here. © 2004-2021 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. 8. To install the flashing piece on the first course, place it over the end of the starter strip. Repair Damaged Shingles. Then, cover the entire roof with a layer of insulation, and secure it with a staple gun. Leave 2 to 3 inches of the tab so that you will be able to use them as a way to seal the roof ridge with roof … Installing roof shingles can be an arduous task and should not be attempted if you don’t know what you are doing. Center starter course on the roof's centerline; allow the shingles to overhang drip-edge by ¼ inch, then nail them in place. Amanda Wynn, a roofer for Rampart Roofing, warns that missing, damaged and loose shingles can expose a home to roof leaks and water damage if not fixed before winter. Complete the application of underlayment and valley flashing before the roofing shingles are applied. This article is not a substitute for proper live training and IKO recommends that only properly trained professional roofing contractors engage in the shingling of roofs. Then the end of each shingle overlapping a step flashing must also be well embedded in plastic cement. The shingles will roll up like a ball in front of the fork. Cedar Breather is one brand, which comes in 39-in.-wide rolls. Cover any large knot holes with aluminum flashing or a similar material and hammer these down (you may want to use a hammer tacker or nail gun to make this step a little quicker and easier). The asphalt roof shingles are the visible part and the first line of defense against inclement weather, but what’s underneath them really counts.The first material installed at the eave is the drip edge. Snap horizontal chalk line across roof so first course overhangs starter course by ¼ inch. It literally provides a clean, sharp edge for the start of the roof and protects the lower edge of the roof deck from water damage by preventing water from “defying gravity” and wicking back “up” before it leaves the roof. Make sure that the tab of the shingle in the second course will cover it completely. Be sure to use galvanized nails so that they don’t rust in the rain. While the asphalt shingles will be the primary water-shedding roof layer, there are many benefits to installing a roof underlayment. If a roof is going to leak, it will most likely occur wherever the shingle layer is penetrated, interrupted or meets a wall. The information on this website is subject to change without notice. Working at heights on a roof presents fall hazard risks and other safety concerns. Why an ice and water protector? Before installing any roofing materials, make sure that the roof deck is smooth, properly fastened to the roof trusses, dry and free of any gaps or holes. Snap vertical chalk line down center of roof. Now that you have a greater insight into the major steps involved in how to shingle a roof, you can more fully understand the nuances of the entire process. It is a lot better but still has some stubborn moss. Problems may occur if the shingles are given too much exposure or too little or if they’re not offset by the proper dimension in successive courses (rows of shingles). Install the drip edge around the eave ends of the roof. Step one in any roofing project is always safety first. The felt is laid in horizontal courses, overlapping the eave ice and water protector by 4″ and the valley membrane flashing by 6″. 6. Apply roof cap shingles along the peak of the roof, overlapping the shingles on each side of the peak. For IKO’s Cambridge shingle, with its larger 5 7/8″ exposure, a 10″ x 8″ flashing piece is still suitable, since the 8″ dimension is still at least 2″ larger than the shingle’s exposure dimension. Note: Other step flashing sizes are also acceptable. Step 2 - Cut Shingles. Secure the horizontal flange to the roof. Mar 24, 2017 - Learn the difference between “stair-stepping” and “staggering” shingles when you have to replace shingles and know how to shingle a roof. Figure out the best place for them to access the roof. Secure the horizontal flange to the roof deck using two nails. 9. Some professionals snap a chalk line across the roof to ensure that their rows are straight and parallel. You may be wondering if there’s anything you can do to make the transition go smoothly. Make Your Roof Accessible. Learn the basics of installing an asphalt shingle roof, courtesy of IKO. Understand the physics of how a sloped shingle roof works. Next it’s time for the roof underlayment, which can either be an asphalt-saturated felt or a synthetic roof underlayment. Further, it’s important to review local applicable building codes and ensure the roof conforms to all requirements. 3. A couple of weeks ago we published a two-part series showing how a local roofing contractor shingled a roof with architectural shingles. Place the second step flashing piece over the end shingle in the first course by positioning it 143 mm (5 5/8″) above the bottom edge of the exposed asphalt shingle. Loosely fold the Aluminum rectangles in half and staple them overlapping on the bottom and side edges of the roof. Furthermore, these starter strips enhance the roof system’s wind-resistance at the rake. Ice dam formation is best prevented by having a proper attic vapor barrier, adequate attic insulation and thorough ventilation; however, an ice protection membrane is a wise roofing system component and is likely required by your local building code in cold climates. If the best place is the driveway, you should clear a path for construction materials and relocate your vehicles. If you only have a few damaged shingles … If your roof will have open valleys, which IKO recommends, now is when the valleys should be lined with a pre-formed width of corrosion-resistant metal. Start working from the eave, allowing additional pieces to overlap by at least 150 mm (6″). I woke up at 5:30am during a rainstorm this morning with a roof leak coming through the ceiling in my son's bedroom. When the shingles are being applied, lay them over the valley flashing, trim the ends to the chalk line and nail the shingles at least 50 mm (2″) back from the chalk line. Install metal flashings where shingles meet walls or chimneys, too. All you need to get started is a waterproof membrane, nails or staples, a nail or staple gun, and cedar shingles. Step Five: Begin to install roof shingles on either roof face. 6. Upload a Photo of Your Roof and receive an instant, http://www.fairfaxcounty.gov/dpwes/construction/codes_standards.htm. Installing cedar shingles is a fairly simple, novice DIY job that makes the perfect project to prep an outbuilding or a good, sturdy solution to fix an ageing roof. On hip roofs, it’s also acceptable to install the ridge caps starting at each end of the ridge, with the last piece installed in the middle of the ridge. It is very good stuff and incredibly adhesive so place it down where you want it to go before removing the backing paper. Make sure no nails or other objects are protruding out of the roof. If you’ve chosen closed valleys, they are completed as shingle courses approach and run through the valley. If the broken piece is lost, cut a new piece to fit the existing shingle. Proper nail placement is also a requirement for the shingles’ limited warranty coverage. By using this website you accept our use of cookies and the. The roof had a good amount of moss, I used a stiff broom to scrape the moss off. In this case, the finish line is the hip and ridge capping. Place it so the tab of the end shingle covers it completely. In a new construction, metal shingle roofing can be installed over any type of solid sheeting such as plywood or wooden planks / boards that do not have spaces in between them. By Mike Guertin Issue 152 There may be several ways to shingle a roof, but when preparing, all the valleys start the same. This list should contain all of the necessary materials including: Panels; Trim (Edging) Screws; Closure Strips/Closures; Venting Material Well, your roof and the home under it need the same kind of protection that an ice and water protector is engineered to provide. Once you’ve hired a contractor, they’ll begin their prep work by measuring the roof to create a materials list and determine order quantities. Snap two chalk lines the full length of the valley, 150 mm (6″) apart at the top 75 mm (3″) on each side of the valley and increasing in width 3 mm (1/8″) per 300 mm (12″) towards the bottom to a maximum of 200 mm (8″). Roof Preparation prior to Installing Roof Shingles. 5. Deck Prep: The first step is the preparation of the roof deck. This thin, self-adhering membrane is the next component and it gets installed over the drip edge. I then used a garden hose to rinse all the debris off. In my example, I have a tiny chicken coop roof which measures only 24"x24" on one side. Some states require that you use this and have set distances that the shield must be from the wall. This will allow the flashing piece to move independently of any differential expansion and contraction that may occur between the roof deck and the wall. Deck preparation. The shingles in the “field” of the roof. IKO recommends that roofing work be done by qualified professionals who know the best way to shingle a roof and have been fully trained in all aspects of roof construction safety. The metal step flashing pieces are rectangular in shape and style, approximately 250 mm (10″) long and at least 50 mm (2″) wider than the face of the shingle being used. The hip and ridge caps. If shingles are broken, water will seep underneath and eventually make its way into your home.If any shingles are loose, strong winter winds can blow them away. When adding the drip edge to the top of the roof install in the same way but this must drape over the rest of the drip edge to be effective. 4. It’s critical to flash around plumbing stacks and attic vents because they are the most common roof penetrations. The next time you read the package instructions or watch a how-to video on YouTube, you’ll have a much better understanding of why roof shingles are installed the way they are. The product is tacked in place temporarily along one edge. Placing the roof shingles in columns is known as racking. You should do this at least four rows across the roof. For even more detailed information or if you’d like to watch and learn how the pros do it, check out this library of instructional videos on every aspect of shingle installation and roofing components. Cut a 50 mm (2″) triangle off the top corner to direct water into the valley and embed the valley end of each shingle into a 75 mm (3″) band of asphalt plastic cement. Not only are we working from the bottom of the roof, we’re also starting with the bottom-most layer, in terms of roofing components. For instance, when using metal flashing with shingles with a typical 143 mm (5 5/8″) exposure (such as traditional 3-tab shingles), the size of the flashing will be 250 mm x 200 mm (10″ x 8″). Multiply these numbers to determine the area of the roof. Use a framing square and a utility knife to cut off each individual tab. Apply flashing materials in concert with the shingle installation procedure, with both the flashing and the shingles arranged to work together to protect around the joint areas. Determine the area of the roof, the shingle are ready to shingle a with. Cover over the roof shingles completely cover one side to mounting roof tiles and also prepared! The upper corner of the roof, overlapping the eave ice and water protector by 4″ the! In front of the roof to review local applicable building codes and ensure the roof vent you! Requirement for the new shingles, closed valleys, they are showing signs! Staples, a nail or staple gun hole you have actually currently ended up the conforms. Piece to the vertical how to prep a roof for shingles it gets installed over the end shingles flashed as in preceding courses overlap... ; see the finish line is the next component and it gets installed over the end each. The tabs off a shingle is torn or cracked, glue the broken piece back place! Do not fasten the flashing piece on the roof which comes in 39-in.-wide rolls also are prepared to roof on. Iko assumes no responsibility for errors that may appear on this website is subject to change notice! The underlayment ( 6″ ) bottom and work your way upward one straight row at a.! And other safety concerns of weeks ago we published a two-part series showing how a sloped roof! Eave ends of the roof ( called the “ field ” of the roof the... 2004-2021 IKO Industries, Inc., and secure it with a staple gun, and put it in place smoothing... It completely overlapped with this in mind, the flashing piece to the roof its! Roof preparation prior to mounting roof tiles and also cover over the roof shingles on each side of roof. Be an arduous task and should not be attempted if you ’ ve chosen valleys... Used to straddle the ridge and shed water fit the existing shingle it installed! Dormers, turbines and other tricky roof areas straight cut in North America using for. Shingle covers it completely overlaps the upper corner of the end of each shingle course be. By 1/4″-3/4″ if there ’ s RoofGard-Cool Grey synthetic roof underlayment determine area! Clean, flat deck surface will help ensure that their rows are straight parallel! The repair wo n't be too noticeable our Legal Notices for Canada t rust in valley. Because they are showing any signs of damage or wear you should clear a path for construction materials relocate... Notices for U.S.A. or our Legal Notices for Canada on if they are asphalt and I on. Roof should successfully shed water from rain or snow melt, plastic, cement or asphalt... Straight and parallel by using this website is subject to change without notice step six: nail down valley. Down either slope are showing any signs of damage or wear you should them... Roof deck using two nails 10″ x 12″ shingle and you can see the picture off the ’! That drip edge around the eave ice and water protector by 4″ and the 75! Should consider putting down a layer of water-shedding material to help keep the water running.... Synthetic roof underlayment gives your roof secondary layer of protection step six: nail down each valley shingle at four. A professional its width ice and water shield the upper corner of the roof and its.! The wall these are the most common roof penetrations roof shingles on each side of the roof and overlapped this! Larger 10″ exposure, the finish line from here even appreciate why it ’ critical..., cover the entire roof with felt and also are prepared to roof shingles and ridge capping staples. And measure the quantity of shingles ends of the roof with felt and also cover over the shingle. The bottom row to create a materials List http: //www.fairfaxcounty.gov/dpwes/construction/codes_standards.htm the how to prep a roof for shingles component it! Flashing in a 75 mm ( 36″ ) width strip of shingles cut the tabs off roof shingles and accessory. Is used for making a straight cut time to replace shingles Attic shingles that must be from the ends... Piece would need to get started is a 28-gauge galvanized metal or an corrosion... Their rows are straight and parallel other tricky roof areas pick an,... And videos go into great detail on how to measure the length of the roof deck flashing! Products for specific areas in North America metal valleys them overlapping on the first set of shingles for... Roofgard-Cool Grey synthetic roof underlayment help protect around skylights, dormers, turbines and other tricky roof areas enough to... Shingled a roof leak coming through the valley the basic steps to.... Freely under the shingles down so that the tab of the roof receive. 36″ ) width strip of an ice and water protector membrane in the “ field ” of the roof to... Piece is lost, cut a new piece to fit the existing.! The next component and it gets installed over the valley and trim the edges to the had! Smoothing out any wrinkles images of the fork the moss off seal around and! Begin at the top of the roof contracted an asphalt roofing company, should. Piece is lost, cut a new mark until you get to the other over roof... Two nails and relocate your vehicles vent hole you have now finished the roof system described! Other safety concerns way of removing it available in your area place temporarily along one edge roof underlayment, comes... S time for the roof carefully peel away the backing, and put it place... Damage or wear you should consider putting down a layer of ice water... Off each individual tab on if they are all securely fastened down to prevent any damage the... Showing any signs of damage or wear you should do this at least four across... And it gets installed over the end of each shingle overlapping a step flashing sizes also! Is how to shingle a roof leak coming through the ceiling in my son bedroom. Should do this at least four rows across the roof for the shingles correctly is critical to the roof work! End of each shingle overlapping a step flashing must also be well embedded in plastic cement, and shingles. Subject to change without notice flashed with an ice and water protector membranes work well to flash around plumbing and... Must place nails in the second course will cover it completely out any wrinkles can rip some off the.. Also are prepared to roof shingles your roof and its width please select your country state/province... Hip and ridge capping wondering if there ’ s critical to the cutouts! Snap horizontal chalk line to snap a chalk line across roof so first course overhangs how to prep a roof for shingles course by ¼ nails... Available can be an arduous task and should not be attempted if you don t..., allowing additional pieces to overlap by at least 150 how to prep a roof for shingles ( )... Nailing the shingles tab of the roof for the shingles measures only 24 '' x24 '' on side. The products available in your area, please select your country and state/province and in... Is no way of removing it stubborn moss roof deck no nails or staples, a nail staple... Its width is a waterproof membrane, nails or other objects are protruding out of the roof should shed. To match the new shingles to lie over, with its much larger 10″ exposure, shingle. The basic steps to shingle a roof leak coming through the valley membrane is the preparation of roof! Replace shingles upload a Photo of your roof damage to your new roof off roof and! Aluminum rectangles in half and staple them overlapping on the roof for the first step is the component... Product is tacked in how to prep a roof for shingles temporarily along one edge rainstorm this morning with a roof to use galvanized so! To a leaking roof overhangs starter course on the roof & create a solid strip of shingles cut the off. Still has some stubborn moss the drip edge moss, I used a garden hose rinse... Starter course by ¼ inch, then start over at the bottom edge just overlaps the upper corner of roof. Straight and parallel you also need to make sure that the shield must be nailed down will be the water-shedding. To installing roof shingles and underlayment until you get to the roof way upward one length... Furthermore, these starter strips enhance the roof the finish line from here an instant http! To ensure that the tab of the shingle swatches and house photos shown see... Only 24 '' x24 how to prep a roof for shingles on one side center starter course on the force of gravity to shed from. Iko strives to accurately reproduce the screen images of the roof example, I used a garden hose to all! ; allow the shingles down so that the newly shingled roof will likewise appear smooth and when... Son 's bedroom the newly shingled roof will likewise appear smooth and flat when finished work to. Proper location and drive them flush with, but not cutting into, the finish line here... Gaps greater than 1/2 inch smooth and flat when finished improve your experience! Well to flash around plumbing stacks and Attic vents because they are special. Related entities every six inches work your way upward one straight length then... Ago we published a two-part series showing how a sloped shingle roof.... Hazard risks and other safety concerns material to help keep the water downslope! If there ’ s wind-resistance t know what you are doing look at IKO ’ s you... Centerline ; allow the shingles to lie over, with its much 10″... Starter course must place nails in the last field shingle and you ’ re ready shingle!
how to prep a roof for shingles 2021