How far should gutters extend past the fascia?

In most areas, gutters will be installed against the fascia, with approximately 3 to 4 inches of the width of the gutter extending beyond the edge of the shingles. The gutter should be installed as close to the shingles as possible; no more than 2 or 3 inches. If the gutter distance is greater than 3 inches, rain will fall off the roof and will not drain properly. The space between the gutter and the roof may vary in size because the gutters must be tilted towards the downspout to ensure proper water runoff.

The gutters must extend beyond the roof tiles, not align with them. Water naturally flows through the shingles, along the edge of the shingles, and even beneath them. When gutter sections are installed directly in line with roof shingles, the shingles impair the natural flow of water. Rainwater can flow to the end cap and is likely to cause a drip.

Normally, the gutter does not extend beyond the slanted edge of the roof. It is often kept an inch or two behind. To ensure that the gutters drain properly, make sure they are tilted (½ inch per 10 feet) toward a downspout. For gutters larger than 40 feet, it is best to tilt the gutter down from the center to a downspout at each end.

Or, you can tilt the gutters downward from each end to a single downspout placed in the center of the duct. Determine what works best for your home before ordering gutters and accessories. Our goal is to help homeowners like you find the highest quality gutter resources available, including the information you need to know to make sure your gutters are properly installed so you can keep your home free from water damage and other problems. Many homeowners take care of their damaged and leaky gutters because they simply don't see that the reward of new gutters outweighs the effort needed to replace them.

You can see how fundamental questions, such as how far the gutters should extend beyond the roof, can make a big difference in the operation and longevity of your gutter system. If you install the gutters so that they extend beyond the shingles, it will allow the natural flow of water to fall into the rain channel, just as it is supposed to. Rather than letting them fall into the gutter channel, you may want your gutter installer to trim the shingles backwards. That gives gutter installers a lot of room for maneuver and doesn't always result in the best rain gutter installation in your home.

That's why we want to make sure you know everything you need to know about your home's gutter system and especially about installing roofs and gutters. You may need to fix a shingle situation in the roof or you need to add a downspout between an upper gutter and a lower roof gutter. Here, we'll show you how to install semicircular reproduction gutters that are exact replicas of the size and style of gutters found in old houses. An unfortunate truth about installing gutters is that you may not be able to meet all your rainwater management needs with a conventional gutter system.

Before jumping into a DIY gutter installation, consider hiring a professional to hang your new gutters properly. In this case, when the gutter is not properly installed, snow can accumulate on the roof and gutter and even cause an ice dam.

John Golob
John Golob

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