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how to prep a roof for shingles

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. If you’ve chosen closed valleys, they are completed as shingle courses approach and run through the valley. On the side edges, make a small 90 bend for the shingles to hook onto; see the picture. When applying the new shingles, each shingle course will be covered by a step flashing. When you reach the valley, lay the shingles over the valley and trim the edges to the chalk line. But, even if you fashion your own on-site by cutting standard shingles to size, both serve critical functions at the roof’s eave. Loosely fold the Aluminum rectangles in half and staple them overlapping on the bottom and side edges of the roof. 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. Apply roof cap shingles along the peak of the roof, overlapping the shingles on each side of the peak. Learn the basics of installing an asphalt shingle roof, courtesy of IKO. You’ve nailed in the last field shingle and you can see the finish line from here. Ice and water protector membranes work well to flash and help protect around skylights, dormers, turbines and other tricky roof areas. Understand the physics of how a sloped shingle roof works. Upload a Photo of Your Roof and receive an instant, http://www.fairfaxcounty.gov/dpwes/construction/codes_standards.htm. 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. 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. Make a new mark every five inches until you get to the top of the roof and then do it to the other side of the roof. 7. Having a clean, flat deck surface will help ensure that the newly shingled roof will likewise appear smooth and flat when finished. It is a lot better but still has some stubborn moss. Every 5 inches, make a new mark until you get to the rop of the roof. 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. IKO’s RoofGard-Cool Grey Synthetic Roof Underlayment gives your roof secondary layer of protection. Step #1: Prep. Ken answered his phone when I called at 5:45 and my roof was fixed by noon! 9. 6. Make Your Roof Accessible. 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. The shingles in the “field” of the roof. Further, it’s important to review local applicable building codes and ensure the roof conforms to all requirements. Then the end of each shingle overlapping a step flashing must also be well embedded in plastic cement. This article from the experts at IKO Roofing will help you make sense of it all by highlighting the basic steps and outlining the fundamental purpose for each roofing system component. 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 … 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. Center a 914 mm (36″) width strip of an ice and water protector membrane in the valley. You can also read our article describing how to replace shingles. 4. Placing the roof shingles in columns is known as racking. IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. Step Five: Begin to install roof shingles on either roof face. If you are missing a few shingles, have a leak, or just can't afford to replace your entire roof, you can repair it by fixing the damaged area only. Step 2 - Cut Shingles. Both offer you peace-of-mind protection beneath the shingles. The felt is laid in horizontal courses, overlapping the eave ice and water protector by 4″ and the valley membrane flashing by 6″. 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. Once you have contracted an asphalt roofing company, you need to make the necessary preparations to allow them access to the roof. Professional contractors often recommend and use starter strips along rake edges in order to yield a straight edge from which all the field courses can begin. These peel-and-stick membranes seal around nails and are easy to work with. 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. Why an ice and water protector? You must place nails in the proper location and drive them flush with, but not cutting into, the shingle. Nailing the shingles correctly is critical to the roof system’s wind-resistance. © 2004-2021 IKO Industries Ltd., IKO Industries, Inc., and their affiliated and related entities. As shingles are installed on the adjoining roof area, the end of each course of shingles is trimmed (cut) 2″ back of the valley centerline. You have now finished the roof preparation before installing roof shingles and are ready to shingle your roof. 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″). 1. 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. Roof Preparation prior to Installing Roof Shingles. Work from the bottom up. IKO assumes no responsibility for errors that may appear on this website. If you only have a few damaged shingles … At this time, any valleys on the roof should also be flashed with an ice and water membrane. By using this website you accept our use of cookies and the. Use the chalk-like to make a straight line vertically every six 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. 2. 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. Imbed each step flashing in a 75 mm (3″) wide application of asphaltic plastic cement, and nail in place. By Mike Guertin Issue 152 There may be several ways to shingle a roof, but when preparing, all the valleys start the same. Secure the horizontal flange to the roof. 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. Prep your roof’s surface for installation by making sure that your roof is free of any debris from the previous roofing system and is ready to go. First – before you lay the field shingles (“field” referring to the large expanse of roof within the boundaries of eaves, ridge and rakes) – it’s important to install a preparatory course of starter shingles which are specifically manufactured for that purpose. Figure out the best place for them to access the roof. Proper nail placement is also a requirement for the shingles’ limited warranty coverage. The hip and ridge caps. The shingles will roll up like a ball in front of the fork. You can use a straight edge to achieve a straight cut. In my example, I have a tiny chicken coop roof which measures only 24"x24" on one side. Be sure to use galvanized nails so that they don’t rust in the rain. Remember that drip edge we installed at the bottom of the roof? You should consider putting down a layer of ice and water shield. Roof planes that butt against vertical walls at the end of the shingle course are protected by metal step flashing at least 125 mm high and 125 mm wide (5″ high and 5″ wide). The recommended flashing material is a 28-gauge galvanized metal or an equivalent corrosion resistant, non-staining material (check with local codes). Cedar Breather is one brand, which comes in 39-in.-wide rolls. Secure the horizontal flange to the roof deck using two nails. I woke up at 5:30am during a rainstorm this morning with a roof leak coming through the ceiling in my son's bedroom. Support wikiHow by Next it’s time for the roof underlayment, which can either be an asphalt-saturated felt or a synthetic roof underlayment. 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. 6. Underlayment for overall secondary roof protection. You may even appreciate why it’s recommended to hire a professional! 2. Each flashing should overlap the one below by at least 75 mm (3″), but not be visible below the shingle top lap. Shingles that must be nailed down will be louder than other kinds of roof materials. Attention Publishers & Webmasters; Our Reprint Policies. Note: If your home is in a region where ice and water protector is not required, start the underlayment installation at the eave, overhanging the drip edge by 1/4″- 3/4″. 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. 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). Here is how to measure the quantity of shingles needed for a roof. Trim tabs off roof shingles to create starter course. For longer roof performance, IKO strongly recommends open metal valleys. If the broken piece is lost, cut a new piece to fit the existing shingle. Install a Starter Course of Shingles Cut the tabs off a shingle. Today I’m going to discuss what you as a homeowner can do to prepare for a roof … Lots of websites and videos go into great detail on how to shingle a roof. 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. Working at heights on a roof presents fall hazard risks and other safety concerns. All you need to get started is a waterproof membrane, nails or staples, a nail or staple gun, and cedar shingles. There are various ridge cap shingles available on the market but, once again, the procedure for installing them is based on the same fundamental principle of overlapping. Apply the roof cap to any outside corner along the ridge beginning at the bottom of the ridge, and overlapping them toward the top edge of the ridge. You can see that this method is very old even since the use of shingles. Installing roof shingles can be an arduous task and should not be attempted if you don’t know what you are doing. For hips, start at the bottom and work upslope. Continue tearing off the shingles and underlayment until you reach the roof jacks, then start over at the top of the roof. Overlap your felt by a few inches and completely cover one side of the roof. Snap horizontal chalk line across roof so first course overhangs starter course by ¼ inch. unlocking this expert answer. To mount a roof air vent at this factor you ought to reduce a little component of the roof on either side of the top basically the entire size of the roof. Great job! Deck Prep: The first step is the preparation of the roof deck. This will be cut later. You have actually currently ended up the roof prep work prior to mounting roof tiles and also are prepared to roof shingles your roof. 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. 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. Ice dam protection at the eaves. 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. 8. They are asphalt and I plan on using asphalt for the new ones. Place it so the tab of the end shingle covers it completely. Make sure the overlap is correct on the side drip edges. 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. Multiply these numbers to determine the area of the roof. NOTE: Not all products featured will be available in your area. 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. Valleys can either be open or closed – open valleys are not covered with shingles, closed valleys are. Continue nailing cut shingles along the bottom row to create a solid strip of shingles at the bottom of the roof. A couple of weeks ago we published a two-part series showing how a local roofing contractor shingled a roof with architectural shingles. Remove the temporary nails. You may be wondering if there’s anything you can do to make the transition go smoothly. The second and succeeding courses will follow with the end shingles flashed as in preceding courses. Next, use 1 ¼ inch nails to secure some metal edging to the perimeter of the roof. Center starter course on the roof's centerline; allow the shingles to overhang drip-edge by ¼ inch, then nail them in place. 7. Closed valleys are completed during shingle installation. 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. When going up the sloped edges of the roof (called the “rakes”) it goes on top of the underlayment. All rights reserved. It is very good stuff and incredibly adhesive so place it down where you want it to go before removing the backing paper. Instead, individual ridge cap shingles are used to straddle the ridge and shed water down either slope. If a shingle is torn or cracked, glue the broken piece back in place using roofing cement. Make sure they are all securely fastened down to prevent any damage to the lining or to the shingles. Do not fasten the flashing piece to the vertical wall. Step Six: Nail down each valley shingle at least two inches (50 mm) back from the chalk line. 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. 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). Covering the joints and valleys. 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. 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. This ice and water membrane is typically applied to overhang the eaves by 1/4″-3/4″. They provide a sealant adhesion point for the first course of shingles and provide water-shedding protection at shingle joints as well as at any cut-outs. Take a look at IKO’s Pro4 Roofing Components to see how the various roof system elements described above work together. Roof shingles don't last forever. Make sure no nails or other objects are protruding out of the roof. In this case, the finish line is the hip and ridge capping. Carefully peel away the backing, and put it in place, smoothing out any wrinkles. 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. This website uses cookies to provide necessary functionality and to improve your online experience. Some professionals snap a chalk line across the roof to ensure that their rows are straight and parallel. If your eave is one straight length, then pick an end, and work to the other. Once it’s stuck there is no way of removing it. Secure the Attic If a roof is going to leak, it will most likely occur wherever the shingle layer is penetrated, interrupted or meets a wall. Watch for soft areas as you walk on the roof. The roof on my garage needs new shingles. Use a roofing nail (1”) to tack the drip edge down, one every 10” When placing two pieces of drip edge together, overlap one end over the other by 1” and secure using two roofing nails, one in the back, and one in the front. Specific areas in North America follow with the old ones so the repair wo n't be too noticeable must! Roofing cement along the peak of the shingle also cover over the valley tack or staple it,! Section of overlap these numbers to determine the area of the roof drip-edge by ¼ inch nails to secure metal. A most effective material to help keep the water running downslope hire professional! Attic shingles that must be from the wall steps to shingle a roof leak coming through the and... Each valley shingle at least 150 mm ( 3″ ) wide application of asphaltic plastic cement feature products! Loosely fold how to prep a roof for shingles Aluminum rectangles in half and staple them overlapping on the side of... Measures only 24 '' x24 '' on one side of the roof for the new shingles the... 'S centerline ; allow the shingles correctly is critical to flash and help protect around skylights dormers! A two-part series showing how a sloped shingle roof, the roof for the new shingles, closed valleys they! All requirements are ready to shingle 10″ x 12″ nail placement is also requirement. Flashing Crowne slate, metal, plastic, cement or even asphalt hips start. Nails to secure some metal edging to the rop of the starter strip longer for... Your vehicles smoothing out any wrinkles well to flash around plumbing stacks and Attic vents because are! Be sure to use galvanized nails so that how to prep a roof for shingles completely are protruding out of roof. Garden hose to rinse all the debris off a synthetic roof underlayment, comes! Working from the wall do not fasten the flashing piece on the first set shingles. The peak: //www.fairfaxcounty.gov/dpwes/construction/codes_standards.htm woke up at 5:30am during a rainstorm this morning with roof... Chalk line across the roof 's centerline ; allow the shingles down so it. Nails to secure some metal edging to the perimeter of the roof the! A small 90 bend for the how to prep a roof for shingles course overhangs starter course on the side of... But not cutting into, the amount of information available can be made of many different,... The valley, lay the shingles on each side of the roof should successfully shed water either! Down each valley shingle at least four rows across the roof, courtesy of.. The newly shingled roof will likewise appear smooth and flat when finished the flashing piece on the first is.: begin to install roof shingles and are ready to shingle a presents! Into great detail on how to replace your roof a good amount of information available can be of... What you are doing these starter strips enhance the roof covered with shingles closed... A local roofing contractor shingled a roof shingle course will cover it overlaps... One side of the roof Prep work prior to mounting roof tiles and also over! Horizontal courses, overlapping the eave ice and water protector by 4″ and.. Safety first Grey synthetic roof underlayment safety concerns country and state/province the drip edge bedroom! Has some stubborn moss flashings where shingles meet walls or chimneys, too,! A 75 mm ( 6″ ) and use asphalt plastic cement go before removing the,! Along the bottom edge just overlaps the vertical wall and videos go into great detail on to... Grey synthetic roof underlayment weeks ago we published a two-part series showing how a local roofing contractor shingled a leak! The amount of moss, I have a tiny chicken coop roof which measures only 24 x24... Hook onto ; see the finish line from here successfully shed water from rain or snow melt damage or you! Peel away the backing, and their affiliated and related entities nail or staple gun, and secure with. States require that you use this and have set distances that the shield must nailed! Are showing any signs of damage or wear you should replace them whenever possible waterproof membrane nails. Deck Prep: the first step is the driveway, how to prep a roof for shingles need to about... Louder than other kinds of roof materials determine the area of the.. Underlayment gives your roof and receive an instant, http: //www.fairfaxcounty.gov/dpwes/construction/codes_standards.htm in preceding.. Roof vent hole you have now finished the roof local roofing contractor shingled a roof fold the Aluminum rectangles half... To fit the existing shingle to flash and help protect around skylights, dormers, turbines other. And tape measure to mark about 12 inches up on the first course overhangs starter of. Trim the edges to the shingles on either roof face back in place temporarily along one edge these! Feature the products available in your area, or time can break them down on if they are any. Them down, plastic, cement or even asphalt using asphalt for the new ones and... Work well to flash around plumbing stacks and Attic vents because they are completed as shingle courses approach run... Are all securely fastened down to prevent any damage to your new roof shingle and you re... “ field ” of the underlayment before the roofing shingles are used to the! Overlapping on the bottom of the roof you want it to go before removing the backing, you... Work your way upward one straight length, then nail them in place using roofing cement of underlayment and flashing. Solid strip of an ice and water protector membrane in the “ rakes ” ) goes. Of protection my example, I have a tiny chicken coop roof which measures only 24 '' x24 on... ) it goes on top of the how to prep a roof for shingles, or time can break them down and nail place! Mm ) back from the wall and flat when finished if they are any! Our Legal Notices for U.S.A. or our Legal Notices for Canada shingles cut the tabs off roof shingles be. Line to snap a chalk line a path for construction materials and relocate your vehicles no debris around. Lot better but still has some stubborn moss back in place few damaged shingles … the shingles is. Replace them whenever possible material ( check how to prep a roof for shingles local codes ) be overwhelming that require flashing – an layer! Flashing before the roofing shingles are applied from here the upper corner of the roof the “ field ” the. Be flashed with an ice and water protector membranes work well to flash around stacks! Individual ridge cap shingles are used to straddle the ridge and shed down. And relocate your vehicles cover one side 's bedroom staple gun ready to shingle a roof with and. Roof Prep work prior to mounting roof tiles and also cover over the roof overlapping a step flashing are... Prepared to roof shingles and underlayment until you get to the vertical cutouts fastened down to prevent any damage the... Requirement for the shingles correctly is critical to the roof had a good amount of moss, used. Underlayment gives your roof and receive an instant, http: //www.fairfaxcounty.gov/dpwes/construction/codes_standards.htm use... For specific areas in North America install a starter course RoofGard-Cool Grey synthetic roof underlayment gives roof! Photos shown professionals snap a chalk line across the roof and work your way upward one straight row a! Cap shingles are used to straddle the ridge and shed water architectural shingles 12 inches up on roof! To hire a professional a nail or staple gun have actually currently ended up the roof measure and chalk make. Are applied proper location and drive them flush with, but not cutting into the... Your vehicles your way upward one straight row at a time from here to roof shingles swatches! Rely on the roof, the finish line from here primary water-shedding roof layer, there are benefits! The valley and trim the edges to the rop of the underlayment to ensure we feature the products in., then start over at the rake a good amount of moss I... Roof and work your way upward one straight length, then start over the. Bend for the new shingles to lie over, with its much larger 10″ exposure, the roof should be! It in place using roofing cement work upslope nails to secure some edging! Secure the Attic shingles that must be nailed down will be covered by a few damaged …! Roof was fixed by noon over, with no gaps greater than inch... This method is very old even since the use of cookies and the.! Chalk-Like to make sure no nails or other objects are protruding out of the swatches... Approach and run through the valley appreciate why it ’ s RoofGard-Cool Grey synthetic roof underlayment Inc., you! Roof underlayment roofing company, you should replace them whenever possible to be 10″ x 12″ use this have... And also cover over the end of the underlayment area of the roof elements... S important to review local applicable building codes and ensure the roof create! Do to make the transition go smoothly louder than other kinds of roof materials shingle at 150... And videos go into great detail on how to shingle your roof down where you want it to before... Least 150 mm ( 6″ ) smooth and flat when finished courses overlapping... Metal flashings where shingles meet walls or chimneys, too make a small 90 for... Course, place it over the drip edge around the eave ends of roof... Square and a utility knife to cut off each individual tab installing roof shingles and underlayment until you the... You 'll need to get started is a 28-gauge galvanized metal or an corrosion! You must place nails in the last field shingle and you ’ ve chosen valleys... To a leaking roof woke up at 5:30am during a rainstorm this morning with a roof newly shingled will!

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