| Problem |
Common Causes |
| noisy drip in pipe |
thin metal |
| leak behind gutter |
no flashing or short/damaged overhang |
| hangars come loose |
no expansion fittings or gutter incorectly placed in
joints or weak substrate |
| bowing |
hangars too tight or too far between mounts or no
expansion fittings or gutter incorrect in joint or hangars not in line |
| leaks at joint |
incorrect adhesive or sealant or process or damaged
joint seals (expansion allowance problems?) |
| corrosion |
pollutants/salts or gutter not kept clean and dry
(proper drain slope) improper coating or flat bottom |
| debris catches at joints |
gutter joints are not solvent welded or soldered or
other lap type with lap below flow. |
| knocked off in snow |
gutter edge not below fall line or hangars too weak or
far apart |
| knocked off by ice or mud |
hangars too weak or too far apart or not on strong
substrate |
| discoloring |
in white a formulation problem in dark colors U.V. and
time |
| overflow |
too few or too small downspouts or clogging joints or
wrong slope or gutter too small (just too much rain) |
| parts fall off |
not solvent welded or soldered or sealed and riveted |
| clogging pipe |
pipe too small |
| clogging elbow or pipe joint |
elbow too small or too close to level or female end on
top |