If a gutter is installed irresponsibly or not maintained, it can fail to protect a structure in the way it is intended to. The problem isn't with the shingles. We have a "30-year shingle" but the way they finished the gutters, it leads the water sliding down the roof until it reaches the 1st floor set of gutters. I have a lovely old bloke next door in his late 70's who has 12 x 7 m carport that was installed pre google earth. Here are 10 of the most frequently-seen roofing mistakes: 1. To be safe, aim for a 4-foot minimum extension away from a downspout. Remove the wood blocks and install same size 4 inch gutter, as gap is too small to make difference. I recommend you install a 6" k style with concealed hangers 16" oc with two screws each. Others say the gutter should be tucked up under the drip edge. But if the rain or melted snow channeled off the roof isn't carried far enough away from the house, it will collect against the foundation wall or footing and seep into your basement or crawl space. Where the roof pitch is between 8–12.5°, the: catchment area must be no more than 25 m² gutter must be at least 250 mm wide. And no builders or roofers should be saying otherwise. One thing that comes up a lot is how far below the shingles the gutters get hanged. Also, you’ll need the horizontal distance between the peak and the edge of the high side of the pipe (see Figure 1) where you plan your roof … Even though they look level from a distance, gutters should be pitched slightly from one end to the other. Water was going behind the gutter and soaking the fascia board (which i believe was leading to a moisture problem in my attic) I did so by following some advice and sliding some aluminum flashing under the last row of shingles extedning them out over the gutter. Continue the process up the roof until you reach the peak. Rain gutters and downspouts provide an efficient first step in controlling roof runoff. If gutters are not present, then MultiTrace installed on the roof must have drip loops extending past the roof edge. Q. Heat-tracing the roof itself is not always necessary. The sketch above shows what happens when roof shingles extend too far past the edge of the roof deck and too far into the roof gutter. Building a room addition or extending the overhang of a roof for more coverage often calls for extending the existing gutters. The cost of extending my 30 foot long roof overhang 14 inches was $340 or $11.50 per running foot for materials. Do you have edge metal? Its top edge is tucked up under the shingles, and its outside face is where the gutter is mounted. If a gutter run will measure longer than 40 feet (12 m), the gutter should be positioned to pitch down from the middle, aimed toward a downspout at each end. How far beyond the drip-edge should an asphalt shingle extend? Gutters were too narrow, original installer needed extra space to extend the gutter relatively to the roof edge. Doing this should cover the most leak-prone areas. This problem is common with homes that have roofs that do not have much pitch to them. Where the roof pitch is 12.5° or greater, the: gutter catchment area must be no more than 16 m² Gutters are designed to channel the water off your roof, and downspouts are designed to funnel that water away from your home. There is a common standard for that overlap between gutter and roof. The first layer should be laid flush with the bottom of the starter layer. Gutters should extend beyond or past the edge of the roof line at least 1" in order to catch every drop the rain water coming down the edge of the roof instead of trickling down the side of your home's siding or wall. For example, Most ranch-style homes have a 3-12 or 4-12 pitch roof. When I Should Put Gutters on a Metal Roof. However, a roofing project that is characterized by shoddy or amateur workmanship can lead to higher costs in the long run. If wind-blown rain or a very low-slope roof conspire to force water back under the shingle eaves edge so it courses down the face of the drip edge, it should be able to drip off the bottom 'kicker' and fall into the gutter. This is shaped so the back side of the gutter fits behind it. If ice-damming on the roof is not experienced, then heat-tracing the gutters and downspouts should be sufficient. First, you’ll need to know the pitch of your roof. Drip edge gutter flashing from the roof should extend beyond the fascia board by about 3/4 inch to make sure that run-off drains to the gutters. I read that the start of a gutter needs to be low enough that if you took a level and laid it on the roof it should clear the front edge of the gutter. Then reshingle, sliding metal step flashing behind the fascia board (the trim behind the gutter). Gutters are not perfect. Gutters should slope an inch or two for every 40 feet. How far should the roof extend over the gutter? Few homes can handle the appearance of anything larger than a 6 inch, commercial sized gutter. thanks for installing a metal roof! Gutter Flashing. 13. A good estimate for a contractor to do this same roof overhang extension would range from $50 to $85 per running foot. Shingle installation can impact gutter performance. How far should a drip edge be from fascia? With a roof that steep I'd have them install 7" wide not the standard 5" to catch more water. I had to extend the shingles on the rear of my house yesterday. Gap is not needed. 14. Allowing them to line up will create a water channel and decreased protection. The shingles should extend ¾" past the top flange of the drip edge; the water should roll off these shingles and drop straight down into the gutter. It ultimately depends on a couple things. Unfortunately, the water isn't always carried far … Maximum catchment areas for valley gutters are given in Table 8 of E2/AS1 for minimum roof pitch and gutter widths. A lot of homeowners wonder how far their extensions should go. my problem is that is it is on the fence line and it has no gutters. Many do-it-yourselfers make this mistake before they even begin. Gutters should be attached to the fascia and run the entire length of the roof, ending with a downspout. This cost did not include any labor or waste disposal fees. Roof pitch is easily calculated, and if you don’t know how, read my article Understanding and Calculating Roof Pitch. It should overlap another piece of ice-and-water barrier laid below, all the way down to the roof edge. It should be trimmed so that it stays covered by the tiles and protected from sunlight. Is the amount of overhang the same at the rake as at the eave? The lower edge of a roof should extend beyond the fascia board by about 3/4 inch so that runoff drains into the gutters. How to Extend Gutter Runs Without Taking Them Down. ... 11,335 visited in past 24 hrs Big numbers 3,711,348 threads 68,180,233 posts 4,844 wiki topics 1,992 modems & routers Putting a new roof onto a home is an expensive, but necessary, cost for homeowners. On a building with gutters there should be a metal roof edging called gutter apron installed under the shingles. When the slight overhang is just too short, water will drip behind the gutters, leading to rotted roof sheathing and fascia, stained siding, in addition to soil erosion together with a flooded basement. … Clogged gutters - Combining regular cleaning with gutter guards is the best way to prevent clogged gutters. At the side furthest from the drain, hold a gutter clip/bracket against the fascia board in a position where, if the gutter was present, it would be just below the edge of the roof tiles.. Mark the clip/bracket fixing holes and screw, one screw into the wood for the chalk line. My understanding is then a 1/16" per inch pitch is standard.. If you have loose, sandy soil where the builders filled in after construction was complete and this surface slopes toward the house, water will flow easily through the soil and pool around the foundation. When the roof shingles do not extend past the metal drip edge the water will suck back on the metal drip edge ( this is called capillary action) and run behind your gutters. How far should gutters extend past the roof? A.Architect and roofing consultant Harrison McCampbell responds: Most shingle manufacturers, along with the Asphalt Roofing Manufacturers Association’s Residential Asphalt Roofing Manual, call for a 1/4-inch to 3/4-inch overhang at both rakes and eaves. I started hanging mine based on a This Old House episode which said to hang the gutters low enough so that snow sliding off the roof won't damage the gutters (about 2 inches below the shingles). Companies like GAF have shingle installation guides, usually stating that the shingles should extend no more than 1/2 to 3/4 inch beyond the drip edge. The following layers should be staggered, keeping the tab slits from ever lining up. The sketch does not show what happens if the roof shingle projection past the roof deck is not supported by drip edge: with time the roof shingles curl down into the gutter itself, and sometimes crack or even break off at that point. Fascia and soffits finish the edges of roofs by covering the ends of the roof rafters (or roof trusses) where they overhang the sides of the house.The fascia is the wide board that's installed on-edge and runs horizontally along the edge of the roof. And you run the flashing up under the roof shingles and you make sure it extends past the roof shingles and lays into the top of the gutters. If this slight overhang is too short, water will drip behind the gutters, leading to rotted roof sheathing and fascia, stained siding, and even soil erosion and a flooded basement. Proposed solutions I got so far: Remove the wood blocks and put an 5 inch gutter it will compensate for the gap. More often than not, the gutters are not positioned properly at the ends of the run of gutter. The real problem is the wrong type of metal roof edging. #1 Those shingles never should have been over hung that far, cut them back to 1" Those cheap DIY plastic really should be replaced with seamless gutters. Forward tilt. Heavy summer rains will probably always overshoot the gutters, but the volume of water should not be a problem if the landscaping slopes away from your home. Almost 2 years ago we had a new 2nd floor done and I wasn't too educated on the little things such as gutters and roofing. Depending on how the roofs join, you may have to cut a slot to work it in far enough. Then you probably do not need snow guards. And what is the pitch? Make sure that the shingles extend 3/8”- 3/4” (9 mm-19 mm) past the drip edge Make sure the drip edge is adequately fastened to the underlying deck a minimum of every 8”-10” (203-254 mm) or as required by local building codes. It was common back in the 50's before they invented plastic eaves tray, but for the past 30 years or so no felt or membrane should be projecting into the gutter. To determine how far you should extend your gutters, consider the type of soil and the slope of the lot around your home. Factors like location, accessibility and landscaping come into play, so it’s not always a clear-cut answer. Roof drip edge flashing serves multiple functions on a building, the foremost of which is to assist water in leaving the roof edge with minimum damage to other building components by directing the water off of the roof and into the gutter. Starter shingles installed incorrectly (or not at all). So, essentially what you’re doing is creating a bridge to make up the distance between where the shingle ended and where it really should have ended, which is at the edge of the gutter. If the pitch is too gentle, water will just fill up in the gutters until it overflows, and a too-sharp pitch isn’t aesthetically pleasing. If there is a gutter edge, make sure the shingles overhang the inside edge of the gutter … This way any snow sliding off would clear the gutter and not damage it. How far should a downspout extend from the house? 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