How long are gutter guards, in section length and in lifespan?
Short answer. DIY gutter guard panels usually come in short sections, commonly 3 to 5 feet long, that you overlap and trim to fit, while professionally installed systems are cut on site to the exact length of each run. Lifespan depends on material: foam and plastic often last only a few years, while aluminum frames with stainless mesh can last for decades.
Section lengths and widths
Store-bought guards come in short, stiff sections so they fit in a car and are easy to handle on a ladder. Each section is made for a specific gutter width, most often 5 inch or 6 inch, so measure the top opening of your gutter before buying. A 5-inch guard will not cover a 6-inch gutter.
How many sections you need
- Add up the length of every gutter run.
- Divide by the section length, then add extra for overlaps, which shorten each section's effective coverage.
- Add a few sections for corners, which waste material when you cut miters, and for the pieces over downspout outlets.
How long each type lasts
- Foam inserts: the shortest life. Sun and trapped grit break them down.
- Plastic screens: a few years to several, depending on sun exposure. They get brittle and warp.
- Aluminum screens and hoods: many years if they are fastened down and not stepped on or hit by ladders.
- Stainless micro-mesh on an aluminum frame: generally the longest-lived, often matching the life of the gutters.
Georgia's heat and strong summer sun are hard on plastics, which is why metal guards are the better value here. Warranties vary widely, so read whether a warranty covers the material, the performance, or both. See gutter sizing, seamless gutters and guards and heat and humidity and roof life.