Why do my gutters overflow when they look clear?
Overflow with clear gutters usually points to a flat or reversed pitch, a blocked downspout or a gutter too small for the roof area feeding it. Water that cannot reach the downspout fast enough spills over the front lip. A roofer checks the slope, the outlet and the roof size.
A gutter does not need much fall, but it needs some, and a run that has sagged between hangers holds a pool in the low spot. Pooled water adds weight, which pulls the section further down. A hanger or two in the right place can fix a slope that looks hopeless.
A blocked downspout acts like a clog in the middle of the system. Leaves that wash down collect at the elbow, and debris can pack into the bottom. A roofer can clear it with a hose or a snake, or open the elbow. If water backs up the downspout in a heavy rain, the pipe may need replacing.
How do trees on the lot change gutter work?
Trees drop leaves, seeds and twigs that clog gutters and valleys, and heavy limbs can bend the runs in a storm. Wooded lots in towns like Coventry, Smithfield and Rehoboth often need more frequent cleaning, bigger downspouts or guards, and a roofer who looks at the roof valleys too.
Large trees also shade the roof, which keeps it damp and encourages moss and algae. A gutter full of wet leaf litter holds moisture against the fascia board, and that wood rots from behind where it cannot be seen. That is often the real reason a new hanger will not hold.
If a limb has already come down on the eave, the damage may reach past the gutter to the roof edge. A roofer can look at both, and roof repair covers what is involved when the shingles are damaged too.
Do gutters cause ice dams?
No. Ice dams come from heat escaping into the attic and melting snow on the roof, which then refreezes at the cold eave. A clogged gutter can make the ice worse and heavier, but the cause is attic heat loss and poor ventilation, so fixing the gutter alone will not stop it.
In Warwick the cold season runs about 3.3 months, and gutters fill with ice and heavy snow in that stretch. A gutter full of ice can pull away from the fascia or bend under the load, which is a common reason repair calls come in during late winter.
If ice builds along the eave every winter, the lasting fix lies in the attic. Read ice dam removal and prevention for how insulation and ventilation address the cause, and use the gutter work to make sure meltwater has a clear path out.
Where should downspouts send the water?
Away from the foundation, onto ground that slopes away from the house, or into a drain that is known to be clear. Downspouts that dump beside the wall can wet the basement or crawl space. Extensions and splash blocks are the simple fix in most cases, and a roofer can show where the water goes.
Watch where the water goes during a heavy rain. A downspout that pools next to a wall, or a groove washed into the soil under it, is a warning that the outlet needs to move. The goal is a few feet of clear distance, with the ground sloping away from the house.
On a house with a shared wall or a very tight lot, the choices are narrower, and a downspout may need to run along the foundation to a drain or the street side. Ask what is allowed on your street before running water toward a neighbor.