The 30 Most Common Items That Block Gutters
For traditional builds, your gutters are the very edge of your home’s exterior perimeter, always working to protect your property from water damage. But when they become clogged, they can cause a list of expensive problems, from a leaky roof to a damaged foundation. As a Melbourne-based gutter guard company, we’ve seen it all when it comes to blocked gutters. Here are 30 of the most common culprits we find in gutters.
- Leaves The most obvious and widespread cause of blocked gutters. Melbourne’s beautiful deciduous trees like Elms and Plane Trees shed their leaves in autumn, which can quickly accumulate and create a dense, water-retaining barrier in your gutters.
- Twigs and Small Branches After a windy Melbourne day, it’s not just leaves that end up in your gutters. Small twigs and branches can fall from overhanging trees, creating a lattice-work of debris that traps other items and obstructs water flow.
- Gum Nuts and Blossoms With the prevalence of Eucalyptus trees in Victoria, it’s no surprise that gum nuts and blossoms are a major cause of gutter blockages. Their small, hard nature means they can easily accumulate and create stubborn clogs.
- Silt and Sediment Over time, dust, dirt, and sediment can wash down from your roof and settle in your gutters. This creates a sludgy layer that reduces the gutter’s capacity and can be a fertile ground for weeds.
- Moss and Algae Moss and algae thrive in damp, shaded environments, and a neglected gutter is the perfect place for them to grow. They can form a thick mat that soaks up water and adds significant weight to your gutters, causing them to sag. Gutter guards that haven’t been maintained for many years will usually have a growth of moss underneath the mesh.
- Plant and Weed Growth When silt and debris are left to accumulate, your gutters can effectively turn into a planter box. We often find weeds, grasses, and even small seedlings taking root, their root systems further trapping debris and blocking water flow.
- Bird Nests Birds often see gutters as a safe, sheltered place to build their nests. While it might seem harmless, a bird’s nest is a tightly woven collection of twigs, leaves, and grass that can completely block a downpipe.
- Animal Droppings Possums, birds, and other wildlife that frequent your roof will inevitably leave droppings behind. These can accumulate in your gutters, adding to the build-up of organic matter.
- Slate Shingle Granules If you have a slate, terracotta or asphalt shingle roof, you’ll notice small granules coming loose over time. These granules can wash into your gutters and create a heavy, sludgy sediment that is difficult to clear.
- Construction Debris If you’ve recently had work done on your roof or a nearby property, it’s common for construction debris like nails, screws, and pieces of tile or sarking to end up in your gutters.
- Kids’ Toys From tennis balls to shuttlecocks and toy cars, you’d be surprised what can end up on a roof and, eventually, in a gutter. These items can cause instant and significant blockages.
- Plastic Bags and Rubbish On a windy day, light rubbish like plastic bags, food wrappers and paper can be blown onto your roof and find their way into your gutters.
- Pine Needles For homes with nearby pine trees, the fine needles can be a persistent problem. They can easily slip through traditional gutter guards and form a dense, water-logged mat at the bottom of the gutter.
- Banksia Cones and Flowers The distinctive flowers and cones of the Banksia tree, a common native in Victoria, can find their way into gutters. Their size and shape mean they can easily block downpipes.
- Fruit and Berries If you have fruit trees in your garden, or your neighbours do, it’s not uncommon for fruit and berries to end up in your gutters. As they decompose, they create a sticky mess that traps other debris. Lemons for example are quite a nuisance and will take months to fully decompose.
- Insects and Pests Gutters can be a breeding ground for insects like mosquitoes and can also be home to spiders, cockroaches and even the occasional wasp nest.
- Rocks and Gravel Small rocks and gravel, often from driveways or paths, can be thrown onto the roof by lawnmowers or flicked up by cars, eventually making their way into the gutter system. We’re not pointing fingers, but young teenagers are often guilty of throwing stones onto roofs.
- Hail After a severe hailstorm, your gutters can be filled with hailstones. As they melt, they can leave behind a large volume of water that can overwhelm a gutter system already burdened with debris.
- Feathers Feathers from birds can accumulate over time, adding to the organic matter in your gutters and contributing to blockages.
- Fireworks and Party Poppers After a celebration like New Year’s Eve or a birthday party, it’s not uncommon for the remnants of fireworks and party poppers to land on roofs and wash into gutters.
- Pollen During spring, Melbourne’s trees release vast amounts of pollen. When mixed with a little rain, this pollen can form a thick, sludgy paste that coats the bottom of your gutters and prevents water from draining properly.
- Lichen Similar to moss, lichen often grows on roofing surfaces, especially in damp or shaded areas. During heavy rain, pieces can be dislodged and washed into the gutter, contributing to the organic sludge.
- Roof Tile Fragments As terracotta and concrete tile roofs age, they can become brittle. Small fragments can chip off from weather exposure or foot traffic and slide down into the gutters, creating hard-to-remove blockages.
- Ash and Embers Unfortunately, during bushfire season, ash and embers can travel significant distances. This fine debris settles on roofs and is easily washed into gutters, creating a dense, fire-retardant sludge.
- Paint Chips If the fascia boards or other painted surfaces around your roofline are old and peeling, the paint chips can fall directly into the gutters, adding another layer of non-biodegradable debris.
- Acorns and Other Nuts The beautiful Oak trees found in many of Melbourne’s older suburbs produce a lot of acorns. These are the perfect size and shape to get lodged directly in downpipe openings, causing immediate back-ups.
- Deceased Pests It’s an unpleasant reality, but sometimes small rodents, birds, or possums can get trapped and perish in guttering. This causes a significant and unhygienic blockage that needs to be dealt with promptly.
- Building Insulation Small pieces of building insulation, such as fibreglass or rock wool, can sometimes escape from the roof cavity or be left behind after installation, eventually finding their way into the gutter system.
- Screws, Bolts, and Clips Over time, parts from TV antennas, satellite dishes, or solar panel mounts can corrode or work themselves loose. These small, heavy metal objects can settle in gutters and cause localised blockages.
- Golf Balls For those lucky enough to live near one of Melbourne’s many beautiful golf courses, an errant tee shot can easily end up on the roof. A golf ball is the perfect size to enter a downpipe outlet. Once inside it could be stuck there for decades.
Protecting your home from the damage of blocked gutters is crucial. Regular cleaning is essential, but for a long-term solution, consider installing a quality gutter guard system like Leafshield®. It’s the best way to keep your gutters clear and your home safe, year-round.
Please call Leafshield today 1300532374 or 1300 LEAFSHIELD
