Gutter Installation & Repair in Raleigh, NC

• Overflow runs down the back of the trough, not off the front
• Wet wood will not hold gutter hangers, so the run sags and worsens
• Peeling paint or a dark streak is a late symptom, not the start
• Rotten fascia gets replaced, not patched, then flashed correctly

The fascia is the wood board your gutters hang from, and it is the first thing that rots when gutters fail. Here is the chain: the gutter clogs or overflows, water backs up over the rear lip, and instead of running to the downspout it runs straight down the back of the trough into the board behind it. That board stays wet for hours or days, and clogged gutters spilling against the fascia is the single most common cause of fascia rot. Once the wood goes soft it will not hold the gutter spikes or hangers, so the run starts to sag and pull away, which makes the overflow worse. By the time you see peeling paint or a dark streak on the board, the rot is usually well underway behind it.

• Steep roofs throw water fast and can overshoot a clean gutter
• Low slopes drain slowly and are more prone to pooling and clogs
• Gutters need about 1/4 inch of fall per 10 feet toward the downspout
• Position and slope get set to your roof pitch, not hung dead level

Your roof pitch decides how fast water arrives at the edge, and that changes what the gutter has to do. A steep roof sheds water fast and hard, so in a real downpour the runoff can overshoot the gutter entirely and waterfall past it, even though the gutter is clean and the right size. A low slope does the opposite: water arrives slowly and is more likely to pool and clog. The gutter itself also has to be sloped, about a quarter inch of fall for every 10 feet of run, so water actually moves toward the downspouts instead of standing in the trough. Too little slope and it sits and breeds clogs; too much and it looks crooked and drains too fast at one end. We set the gutter position and slope to your roof's pitch instead of just hanging it level.

• Roughly one downspout per 20 to 40 feet of gutter run
• Too few outlets bottleneck the system in the storms that matter
• Discharge at least 4 to 6 feet from the foundation, more on clay
• Extensions need their own slope, about 1/4 inch per foot, to drain

The trough only collects the water; the downspouts are what actually move it off the house, and where they go matters as much as how many there are. A good rule is one downspout for every 20 to 40 feet of gutter run, so no single outlet is asked to drain more than it can in a hard rain. The bigger mistake we see in the Triangle is the discharge point: a downspout that dumps right at the foundation just relocates the problem from the roof to the basement or crawl space. Roof runoff should be carried at least 4 to 6 feet away from the house, and farther on heavy clay, with the extension itself pitched about a quarter inch per foot so the water keeps moving instead of pooling at the elbow.

• 5-inch K-style is standard and fine for an average Triangle roof
• 6-inch carries roughly 40 percent more water for the same length
• Big, steep, or high-runoff roofs are where the larger size earns its cost
• Pair 6-inch gutters with 3x4-inch downspouts so the outlet keeps up

Most Triangle homes run 5-inch K-style gutters, and for an average roof that is enough. The reason to step up to 6-inch is volume: a foot of 5-inch gutter holds about 1.2 gallons, while a foot of 6-inch holds about 2.0 gallons, which works out to roughly 40 percent more capacity for the same length. On a big or steep roof, or one that drains a lot of area to a short run, that headroom is the difference between handling a summer cloudburst and waterfalling over the edge. Sizing up the trough without sizing up the outlet is a half-measure, so a 6-inch run should be paired with a larger 3-by-4-inch downspout, otherwise the extra water just bottlenecks at the same small outlet.

• Micro-mesh blocks pine needles and shingle grit that beat coarser guards
• Reverse-curve can overshoot and skip the gutter in heavy rain
• Screen guards are cheap but let needles and seeds pass through
• Foam inserts hold water and debris and break down in a few years
• No guard is maintenance-free; the good ones just stretch the interval

Under the Triangle's tree canopy a guard can be worth it, but the type matters and the marketing oversells most of them. Micro-mesh, a fine stainless screen on a rigid frame, is the strongest all-around choice here because its openings are small enough to stop the pine needles and shingle grit that defeat coarser guards, while water passes through by surface tension. Reverse-curve, or surface-tension, guards handle grit well but have a known failure mode: in a heavy downpour the water can overshoot the curve and skip the gutter entirely, which is exactly the storm you bought them for. Screen guards are cheap but let pine needles and seeds straight through, and foam inserts act like a sponge, holding water and debris and breaking down in the sun within a few years. No guard makes a gutter maintenance-free; the honest claim is that the right one stretches the interval between cleanings.

• Wake County's Cecil clay swells wet and shrinks dry, pressuring foundations
• One storm sheds a lot of roof water right where the downspout lands
• Dumping at the wall keeps the worst soil saturated against the foundation
• A cheap extension is some of the lowest-cost foundation protection there is

The whole point of moving water off the roof is keeping it away from the foundation, and in the Piedmont that is not optional. Raleigh and most of Wake County sit on heavy Cecil-type clay that swells when it gets wet and shrinks when it dries, and that movement pushes against foundation walls and works on crawl-space supports. A roof sheds a surprising amount of water in one storm, and if the downspouts dump it at the base of the wall, that clay stays saturated right where you least want it. Carrying the discharge well away from the house is one of the cheapest pieces of foundation protection there is: a downspout extension costs a little and can spare you a foundation or crawl-space repair that costs many times more. This is why we look at where the water lands, not just whether the gutter is clean.