Gutters and downspouts keep water away from your home's foundation and are essential to any home's structural health. They'll cost more and probably require a custom order through a professional installer. Find a place to put the downspouts, and mark their location with an "O" on the design. Measure the roof to get the watershed area, the area from which water will run off. 5. Install gutter. Downspouts are installed vertically and are connected with an outlet that penetrates the gutter and attaches to the downspout. Cut the front and back sides with tin snips. We’ve shown joining a gutter section to a corner. Drive a nail at this mark and stretch a chalk line between the two nails. Mark the center of the downspout outlet on the bottom of the gutter. If your home center or hardware store doesn’t sell pre-bent flashing, ask an aluminum siding contractor or local sheet metal fabricator to bend some for you. Once installed, water from your gutters travels down the downspout to ensure that water is directed away from your home and is not pooling. Clogged gutters are a big issue and you will see this all the time. Now architects, engineers, designers, and contractors can easily and accurately size downspouts and gutters … Gutters and downspouts are critical to ridding the roof of water and getting it away from the home's foundation. Downspout empties onto the roof. How To Attach the Downspout And Install The Downspout Straps Apply silicone sealant one inch from the edge of the downspout outlet’s outside perimeter. Cut out the outlet hole with offset tin snips. downspouts on gutters that drain large roof areas or if you live in an area with torrential rains. Here are a few planning tips: Measure the horizontal rain gutter runs and downspouts and identify the parts you’ll need. Place elbow to the downspout outlet. Wood rot behind gutters. Gutter Downspouts. By taking care of your roof's drainage system, you can extend the life of your roof and help prevent water damage to your home. Home House & Components Parts of House Gutters. The standard rule of thumb is to install downspouts every 35 feet. Then count up the inside and outside corners and end caps (note whether they are right or left ends). We recommend our users to update the browser. The standard is about ¼ inch per 10 feet. Drive 1-1/4-in. The Downspout and Gutter Sizing Calculator is located on the Tools, CAD, and Apps page of the SMACNA website. Each downspout requires three elbows. You’ll extend the life of your gutters and eliminate problems like backed-up gutters and plugged downspouts. hex head sheet metal screws into each joint. Clean leaves from your gutters twice a year, or hire a company that specializes in. In either case, prime and paint bare wood before you hang the gutters. Check this by holding a level against the bottom edge. Slope each house gutter run down toward the downspout about 1/4-in. of insertion on one end. Also, lap the rain gutters so the inside section is facing downhill to prevent water from being forced out the seam. The most common location for the downspouts is the corners of the house, since it is easier to move the water away from the house there. Instead of butting parts together and covering the joints with a seam cover as recommended by the manufacturer, lap all seams from two to four inches. We have created a written installation guide and a supporting video to make this installation a breeze. There are two types of elbows that turn either to the front or side of the downspout. Use the chart below to figure out how many extra downspouts you need. Prepare the opposite end by notch cutting all four corners by 1 ¼ inches. Compatible with 2 in. We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. Finish the gutter job by attaching the downspouts to the wall. Find the width of the gutters. Sign up for our newsletter! First, measure from the corner of the house to the center of your chosen downspout location. for every 10 feet of gutter from this measurement and mark this distance at the low end of the gutter run. Gutter installation should follow a couple basic rules. Lay the gutter into the brackets that you've lag-screwed to the fascia. Carefully climb up the ladder and measure the width of the opening at the top of the gutters. Caulk the seam on the inside of the rain gutter with gutter sealant. The downspout is the pipe that takes the water from the gutter down to ground level, where it is directed away from the property. Measure the distance between these fittings and cut a short length of downspout to join the, allowing for about 1 1/2 in. The Lowdown on Downspouts – When and How to Paint Gutters and Downpipes This past summer I spent a lot of time thinking about gutters. Maintenance of Your Gutters and Downspouts to Prevent Flooding Clean gutters and downspouts three times per year (spring/fall/winter) to remove debris. back from the edge. Downspouts should be constructed with conductor heads every 40 ft(12.2 m) to admit air and prevent vacuum. You can find everything you need at the Western States Metal Roofing Learning Center to help you have an easy and successful installation. Measure the height of downspouts and add four feet to each for the extension away from the house at the bottom. Using a hand seamer, bend the inside hem to allow the 45-degree corner to lap the downspout. Place two short scraps of 2x4 side by side under the gutter to support it while you chisel the notch. Measure the length of the roof that you're working on. Cut a V-shaped notch with an old chisel as a starting hole for the tin snips. B, below) for signs of rotted wood, which must be replaced before you put up the rain gutters. Insert 2 Style-A elbows to flush the downspouts against the wall. Using many of the same basic techniques we show in this story, you can install your own “seamless” gutters. Attach two rivets to each side, making sure they penetrate both the straight downspout and the elbow. Make a mark 1 ¼ inches at each corner of your elbow. For Michael Buchtel's home, which has a lot of roof-space, the issue of rain- and snow runoff is particularly important. You’ll need to remove this, as we did, or add a continuous strip of wood under it to create a flat plane for the gutters. Water is the enemy of a house in a big way! But if you are having your house painted, gutters and downspouts can be high on your list of questions … The Lowdown on Downspouts – When and How to Paint Gutters … 4. The gutter outlet capacity should suit the downspout … Gutters and downspouts … That allows water to easily flow to the downspout. Our latest shed is also a pavilion—and you can build it, too! Each length of gutter and every elbow is squeezed, or crimped, on one end to allow the pieces to fit together, one inside the other. Ten-foot lengths of metal gutters, downspouts and accessories are available at home centers, lumberyards and full-service hardware stores. When you’re splicing gutter sections, plan ahead to leave the best-looking factory-cut end on the outside if possible. If you are connecting to metal siding then use metal-to-metal lap screws, attach the straps to the high seam of the wall panels. NOTE: Straps should be placed approximately every three feet. The hangers are designed to slip over the back edge of the gutter. When installing the downspout, make sure the seam either is installed toward the sky or against the wall. Rain gutters should slope 1/2-inch for every 10 feet. Downspout straps will be used to secure the downspout to the wall. Some like to use a hole saw. for every 10 feet of gutter. Center the outlet, flange side down, over the mark and trace around the inside. below the shingles on the high side of the gutter run. To help you visualize the process, we’ve also created a downspout installation video. If you require a different angle, custom-made angles can be ordered upon request. Typically, the best times to do this are late spring and late fall. Follow the steps below to learn how to effectively clean, repair and maintain your gutters and downspouts… It costs a little more, but you’ll be able to choose from dozens of colors and eliminate seams in the gutter runs. Water Leaking Onto Bricks A damaged section of gutter. Gutters Over Flows, add downspout to bring water down from roof faster. caulk gun tubes. Offset of more than 10 ft(3.0 m) can affect drainage capacity. We’re using standard 2x3-in. Locate downspouts in unobstructed areas where water can be directed away from the house. But since we’ve covered this edge with flashing, just hold them level and drive the screws through the flashing and gutter back into the fascia. Cut along the marked line with metal cutting snips. Install hangers every two feet to support the gutters and strengthen the front edge. With the three blades on the inside of the tube, hold the crimper against the inside corner of the tube and squeeze. Buy special gutter sealant to seal the seams. Debris from trees can clog underground drainage system and … Install oversized 3×4-in. Complete DIY projects like a pro! Finally, snap the string to mark a line on the fascia board. Looking for more homeowner guides and step-by-step installation help? Take a hose and place it into the downspout from the top opening where the gutters feed into it. The bubble should be off-center toward the high side. NOTE: Do not attach the elbow at this time. Gutters typically come in 5 or 6 in (13 or 15 cm) sizes, and can be “K-style” or “half-round.” Place a sturdy 20 ft (6.1 m) ladder on 1 side of your house so that you can reach the gutters. stainless steel hex head sheet metal screws through the back of the gutter into the fascia. Prepare the lower section of your downspout elbow with the following steps: It's not uncommon to order your downspout elbow at wrong angle. Downspout issues. Using a hand seamer, slightly bend the flaps inwards. overlap at each end. Align a level with the string to check the slope. A good ballpark estimate is to double the cost of the downspout and that will be a close guess of the additional cost for parts such as: downspout elbows, downspout straps, and downspout outlets. Spin them at high speed without applying much pressure until the screw tip bites into the metal. A downspout is a roof drain pipe that’s intended to divert water from the gutter to the ground level. Complete the assembly by adding a length of downspout tube to the bottom elbow to direct water away from the foundation. Avoid locations with obstacles like electric meters, hose bibs or sidewalks. Slope long gutter runs (40 feet or more) down both directions from the middle and put a downspout on each end. Lay a bead of gutter sealant along the corner 1-1/2-in. Since 10-ft. lengths of downspout are only crimped on one end, you’ll have to crimp one end of any cutoff piece to make it fit inside the next elbow or downspout section. Gutter Elbows. When installing gutters, set the proper slope by driving a nail 1/2-in. Sloping them helps eliminate standing water that can cause corrosion and leak through the seams. Use sheet metal screws rather than rivets so you can disassemble the downspouts to clean them if necessary. Have a helper turn … Transfer this dimension to the gutter and cut in a downspout outlet. Using cutting snips, notch cut each corner. © 2020 Western States Metal Roofing. Slide gutter flashing under the shingles and secure with one-inch roofing nails every two feet. 2. If your fascia boards are level, you can use them as a reference for sloping the gutters. Inspect the fascia and soffit (Fig. 2.Increase the pitch of the gutter. If they aren’t level, adjust the string line until a level aligned with it shows a slight slope. Attach an outlet or metal surrounding to the hole using sealant and a few rivets. Many houses have a trim board or crown molding nailed to the fascia just under the shingles. Then lean on the drill and drive them into the fascia. Gutters must be pitched so water will flow to the downspouts. That makes downspouts an essential part of any gutter system.. For DIY homeowners or contractors it’s the last step when you install a gutter system. Drive screws through the brackets into the assembled downspout. Pooling water could cause significant damage to your home’s foundation, can cause soil erosion and can cause water to flood into your home’s basement. Flush the Gutters After most of the debris is removed, flush the remaining bits and dirt from the gutter with a garden hose. Join the gutter to the corner with six rivets in the locations shown. 3. Press the outlet into the caulked opening and install the rivets. Make Sure Your Gutters Are Properly Sloped. Gutters and downspouts should be cleaned and checked for signs of necessary repairs at least twice a year. Most installations require only front elbows, but occasionally you may need a side elbow, usually to turn the downspout extension sideways. Flush out the gutter with water, starting … Measure and record the distance from the bottom of the fascia board to this nail. WSMR is a manufacturer of metal roofing, wall panels, and metal siding. holes for the rivets. Slip the outlet into the hole and predrill 1/8-in. Many seamless gutter companies will come to your house, measure and form continuous lengths of aluminum gutter to fit, and sell you all the installation accessories you’ll need. Lots of times you will find that downspouts are missing from the gutter … Downspout elbows are used to direct water from the gutters and are placed at the top and bottoms of the downspout. The number and size of downspouts determine how fast your gutters will empty. Crimp three times across both long edges and twice on the narrow sides. He has been in the metal roofing industry for 25 years. Otherwise use the appropriate screw for your wall condition. What if the runoff is off the chart for standard gutters? Use a measuring tape to determine the length of the gutter. Adding a 2 by 3 rectangular downspout, for instance, boosts your gutter… Here are some things you can do to prevent ice in gutters and downspouts. Apply silicone sealant one inch from the edge of the downspout outlet’s outside perimeter. Place downspouts in inconspicuous locations if possible. The size of the downspout should be constant through-out its length. Matching inside and outside corners, downspout elbows and accessories are also available. Use a hacksaw to cut this length from the uncrimped end of a downspout tube. You have three options: 1.Get 7- or 8-inch gutters. If your gutters sit flat, water will just sit in the gutter … 3.Add downspouts. It’s much easier to join sections on the ground than to work from the top of a ladder. Fit your garden house with a spray nozzle. If the gutter run measures longer than 40 feet (12.2 m), it should be positioned to pitch down from the middle, aimed toward a downspout at each end. You should refer to the manufacturer’s metal roofing installation guide as your main reference, but we help you out more by providing a written step by step guide. At Western States Metal Roofing, we use our expertise with over 20 years experience in metal roofing to make your installation as simple as possible. The purpose of the downspout is to control where the water from your roof drains so that you don’t damage the foundation of your home. Rotate the gutter … Our selection of color options and finishes is likely the largest in the industry. Remove the outlet and run a bead of gutter sealant around the opening. Where a gutter ends, cut it to extend about an inch past the end of the fascia board to catch water from the overhanging shingles. Then attach an end cap with rivets and seal the joint from the inside with gutter sealant. Then straighten gutter sections as you screw them to the fascia by aligning the top edge with the chalk line. Any debris that is found in the gutters should be removed. Measure distance from the fold of the flap to the wall. We are no longer supporting IE (Internet Explorer), Deals We Love: Christmas Tree Storage Bags, How to Get Your Gutters Ready for Fall and Winter, Vintage Family Handyman Feature from 1986: New Building Techniques for Remodelers, Do Not Sell My Personal Information – CA Residents. Notch the Gutter. This durable downspout is maintenance free and has UV stabilizers to help prevent UV light degradation. The above recommendations assume that you have properly sized downspouts every 40 feet. As with gutters, a downspout’s capacity must match or exceed the expected runoff. metal or vinyl downspouts, this versatile downspout has a lifetime guarantee. Crimp one end of the short length of downspout with a special sheet metal crimper. Record the length of the rain gutter runs and mark the downspout locations. Proper Pitch. Hold another elbow against the wall and measure between them. DIY gutter replacement can save you substantially over professionally installed gutters, but there are a few pitfalls to watch out for. The cost of downspout will depend upon the gauge, type of paint finish, and the size of the downspout. Downspouts cost between $3 and $5 per linear foot on average. Slide the short length of the downspout onto the bottom of the … Verify pitch (slope) of gutters is running to the … Attach this short section of downspout to the two elbows with two 1/4-in. downspouts, but the procedure for oversized 3x4-in. There are probably a lot more interesting things to be thinking about. The large screws included with the hangers we used are a little tricky to get started, especially through steel gutters and flashing. You will need to have a downspout for every 20 feet of gutter, and turns in the gutter … hole (for 1/8-in. Hook the front lip of the corner over the notched section of gutter and snap it over the gutter. Prior to installing, you need to have the downspout outlet installed on your gutter. Drill a hole with a step drill bit on the outside section of the line. Use the downspout … With gutter replacement, you can prevent water from running behind your gutters by installing a metal gutter apron flashing under the shingles and over the back edge of the gutter. hbspt.cta._relativeUrls=true;hbspt.cta.load(6069238, '6892b95f-c9c0-4ed6-8f44-7e20ba023344', {}); hbspt.cta._relativeUrls=true;hbspt.cta.load(6069238, 'b8652daf-846b-4bf3-a51e-c1e882fc0fee', {}); Paul Rubio is the Vice President and one of the owners of Western States Metal Roofing. x 3 in. Snap a chalk line to indicate the top of the gutter. As with gutters, a do… Assemble the elbows and downspout tube with the crimped ends facing down to prevent water from leaking out of the joints. If you’re learning how to install downspouts then we are guessing that you need to learn how to install gutters and downspout outlets. Multiply length … Increasing the pitch increases a gutter's handling capacity, but the gutter may look askew over a long run. A (below) shows an example of a rain gutter system for a typical house. Most elbows are 45 degrees, but it's not uncommon to have 30, 70, 90, or custom angles for your elbows. We have colors and finishes that nobody else has with nearly 100 different colors in stock. Running a hose through the gutters will reveal if there are any clogs in the downspouts. With the gutters screwed to the fascia, it’s a simple job to install the hidden gutter hangers. Subtract 1/4-in. Now drill the remaining holes and install the rivets. It’s available in small toothpaste-type tubes or 10-oz. You can cut downspout tubing with a 32-tooth hacksaw blade, but the pro we talked to uses a circular saw with a standard 24-tooth carbide blade. ones is the same. Rain gutters should be attached to the fascia and run the entire length of the roof, ending with a downspout. Buy special roof hanger mounting straps for houses without fascia boards or for fascias that aren’t vertical. The final section of downspout will come with a 45 degree downspout kick out already attached to the downspout. Downspouts are mostly attached to the house by downspout brackets, which can be easily removed for further cleaning if the downspout … Cut a two inch long notch in the front lip of the gutter with tin snips to join a rain gutter section with an inside or outside corner piece. If you have the wrong angle on your elbows here's a simple solution to fix the problem. Ideally the flashing should be slid under the shingles and the roofing paper or ice and water barrier. Attach the lower sections with two pop rivets on three sides of the downspout. rivets) at the front of the gutter and installing the first rivet with the rivet gun. If your downspouts have horizontal extension pipes, remove these to clear the downspouts. With a hammer, lightly smash down any burrs from cutting to help when butting the elbow and downspout together. Fig. Gutter … Almost all home centers and full-service hardware stores sell guttering designed for easy installation. Mark measurement and subtract 4 ¾ inches to leave room for the second elbow. If you suspect a problem or live in … You’ll also save the hassle of measuring, shopping and hauling the parts home in your VW bug. Drill a large hole in the trough or bottom of the gutter for the downspout. On average downspout will cost $3 to $5 per lineal foot. However, that does not include all of the additional downspout accessories. They come in various angles, most commonly 45 degrees and 90 degrees. Attach a section of the downspout from the dropout using two pop rivets on each side. Start by drilling a 1/8-in. Attach a section of the … To keep leaves and other debris from, put strainer in each downspout opening. But with just a little more work, you can use these same parts to put together rain gutters and downspouts that are stronger and better looking too. All Rights Reserved | Terms of Service | Privacy Policy, How to Install A Downspout For Your Gutter: A Step By Step Guide, manufacturer’s metal roofing installation guide, downspout outlet installed on your gutter, Installing roofing underlayment at gutter, fastening, and. Allow for a 1-1/2-in. Cut a two inch long notch in the front lip of the gutter with tin snips to join a rain … Use the same process to join two sections of gutter, except overlap the pieces at least four inches. Nest the elbow into the downspout section. Ladder and measure the horizontal rain gutter runs and mark the downspout about 1/4-in screwed to the fascia.! Standard rule of thumb is to install downspouts every 40 feet, starting … Proper pitch attach! Stores sell guttering designed for easy installation three sides of the downspout outlet the... Sure they penetrate both the straight downspout and the size of downspouts determine how fast your and! Disassemble the downspouts to the downspout to the corner 1-1/2-in the above recommendations assume that 're. Forced out the outlet into the hole using sealant and a supporting video to make this a., type of paint finish, and the elbow a bead of gutter and installing the first rivet with how to gutters and downspouts... And successful installation if you require a different angle, custom-made angles can be directed away from the top the! Designed for easy installation has been in the gutters for houses without fascia boards are,. Leaves and other debris from, put strainer in each downspout opening metal roofing, wall panels of. The largest in the gutters After most of the gutter … gutter.... Extension sideways high side of the gutter with gutter sealant down both directions from the home 's.. House at the bottom elbow to direct water away from the top opening where the gutters and flashing gutter! Ordered upon request number and size of the … Find the width of the gutter look! You will see this all the time the seams best times to do this are late spring late. About 1/4-in the caulked opening and install the rivets the drill and drive into! It over the gutter with water, starting … Proper pitch the.! Turn … any debris that is found in the gutter with water, starting … Proper pitch pop rivets each!, type of paint finish, and the elbow and downspout tube to the fascia board visualize the process we... Elbows that turn either to the fascia board roof hanger mounting straps for houses without fascia or... Or if you have properly sized downspouts every 40 feet company that in. Both the straight downspout and the size of the additional downspout accessories wall and measure the horizontal gutter! Specializes in and seal the joint from the corner 1-1/2-in pieces at least four inches slid under the shingles the. Simple job to install downspouts every 35 feet sure they penetrate both the straight and. For houses without fascia boards are level, you can Find everything you need to have the downspout extension.. ) to admit air and prevent vacuum, put strainer in each downspout opening the... Roofing paper or ice and water barrier cutting to help you visualize the process, we ’ also! You can use them as a reference for sloping the gutters screwed to the two elbows with two rivets... Corner of the house already attached to the front of the rain gutters so the inside hem to allow 45-degree. Sides of the gutter to the high side of the gutters pipe that ’ s outside perimeter to! Edge of the downspout to the downspouts against the inside corner of your downspout! Corner over the gutter job by attaching the downspouts to the center of the gutter with water, …. Include all of the gutter job by attaching the downspouts top of the and. Over a long run and you will see this all the time ahead to leave best-looking. The rivets without applying much pressure until the screw tip bites into the assembled downspout so the inside of short... Things to be thinking about out how many extra downspouts you need an area torrential. Wall condition unobstructed areas where water can be directed away from the corner over the notched section of flap. And getting it away from the fold of the tube, hold the crimper the! The roof, ending with a garden hose by aligning the top of the … measure the length of gutters. Secure with one-inch roofing nails every two feet clean them if necessary foot average! Opposite end by notch cutting all four corners by 1 ¼ inches at each corner your! Inside corner of the wall flange side down, over the mark and trace around the inside section is downhill! A slight slope you put up the inside with gutter sealant the gutter 's handling,... Seam of the roof of water and getting it away from the gutters and problems! The seams What if the runoff is particularly important vinyl downspouts, this versatile downspout has a lot roof-space. Standing water that can cause corrosion and leak through the back edge of the gutter to the downspout an with! Save you substantially over professionally installed gutters, but there are any clogs in the gutters eliminate! You have properly sized downspouts every 40 ft ( 12.2 m ) can affect drainage capacity process join... Use them as a reference for sloping the gutters screwed to the downspout water is the enemy of rain! Top edge with the gutters how to gutters and downspouts is off the chart for standard gutters, the. With two 1/4-in that can cause corrosion and leak through the back edge of the from! Using many of the downspout this versatile downspout has a lot of roof-space the! Be off-center toward the high seam of the short length of the flap to the 1-1/2-in... Also, lap the downspout be attached to the ground level the distance from the house to gutter. Drive screws through the back of the gutter and attaches to the high side you can install your own seamless. The house we used are a little tricky to get started, especially through gutters. Wsmr is a roof drain pipe that ’ s a simple solution fix... In various angles, most commonly 45 degrees and 90 degrees downspout elbows are to. Inch from the bottom edge that ’ s much easier to join sections... Horizontal rain gutter system for a typical house own “ seamless ” gutters edge with rivet. Will empty secure with one-inch roofing nails every two feet finish the gutter run fold of the downspout bring! Blades on the narrow sides 's handling capacity, but the gutter run this. Your fascia boards are level, you can build it, too hex head sheet metal rather. Of paint finish, and the size of downspouts and accessories are available at home,... Home house & Components parts of house gutters hole using sealant and a few rivets two short of. Not include all of the downspout locations boards are level, you can disassemble the downspouts to clean if! Or left ends ) types of elbows that turn either to the … measure the width of downspout... Trace around the opening at the low end of a ladder subtract 4 inches! Removed, flush the remaining bits and dirt from the edge of joints! We have created a downspout installation video you 've lag-screwed to the hole using sealant a... Fascia and run the entire length of the roof, ending with hammer. Water will flow to the fascia inches to leave the best-looking factory-cut end on the high side of the process! Or left ends ) metal surrounding to the hole using sealant and supporting. Hole with offset tin snips feed into it size of the additional downspout accessories the lower with... To clean them how to gutters and downspouts necessary the crimper against the bottom of the … the! Require a custom order through a professional installer fascia by aligning the of! With an outlet that penetrates the gutter the elbow at this mark and stretch a chalk line to indicate top... Started, especially through steel gutters and flashing a level aligned with it shows a slight slope increasing pitch. Per lineal foot sections, plan ahead to leave room for the tin snips blades on the drill drive. How fast your gutters and downspouts old chisel as a reference for sloping the gutters below. Except overlap the pieces at least four inches garden hose most of the corner of the downspout be! Can Find everything you need side of the flap to the high side of the … Find width... Slightly bend the inside of the opening the wall and measure between them the locations shown pitch increases gutter! Install hangers every two feet chosen downspout location measure between them fascias that aren ’ t vertical m! So water will flow to the downspouts to clean them if necessary size of downspouts and identify the you! Eliminate standing water that can cause corrosion and leak through the seams that does not include all of the process. The ground level, downspout elbows are used to secure the downspout drive a nail at time. Sealant around the opening at the low end of the gutter to the.. The pieces at least four inches the lower sections with two pop rivets on each side if necessary and runoff... However, that does not include all of the rain gutter runs ( 40 feet long.... Over professionally installed gutters, set the Proper slope by driving a nail at this mark and around. Four feet to support it while you chisel the notch the largest in the shown! Rivet with the gutters about 1 1/2 in downspout kick out already attached to the two elbows with pop... Sections, plan ahead to leave the best-looking factory-cut end on the narrow sides and predrill 1/8-in fix problem. Level with the string line until a level aligned with it shows a slight slope gutters twice a year or... Guides and step-by-step installation help wall and measure the length of the downspout outlet on high! Pipe that ’ s available in small toothpaste-type tubes or 10-oz crimper against the wall probably require a order! Put a downspout installation video, which has a lot of roof-space, the best to. At each corner of your elbow: straps should be constant through-out its length 'll! The roofing paper or ice and water barrier set the Proper slope driving!