To ensure that gutters drain properly make certain they slope inch for every 10 feet toward a downspout.
Best way to cut metal gutters.
Or you can slope the gutters down from each end toward a single downspout placed in the middle of the run.
An important part of the aluminum gutter is cutting the pieces of gutter to length.
If your gutters are steel buy steel roll flashing because galvanized steel corrodes aluminum.
Cut a starter hole in the gutter with a chisel drill or sabre saw and nibble out the finished opening with tin snips.
You can cut mild steel up to about 3 8 in.
Then set the fitting on the bottom of the gutter and trace around it.
Cut metal with your circular saw.
Fit the miter saw with a carbide tipped finish blade for cutting through metal but this is the fastest and most efficient tool for cutting through any type of gutter material.
The best way to cut shingles 3 how to cut gutters with miter saws.
In our test it cut through rebar like a hot knife through butter.
Step 2 rest the base of the carpenter s square against the top edge of the metal gutter and align the blade of the square with the pencil mark you placed on the gutter in step 1.
For gutter runs longer than 40 feet it s best to pitch the gutter down from the middle to a downspout at each end.
Although there are many methods of cutting the aluminum gutter the simplest method is to use pattern shears.
Hot metal chips will fly.
Next install a downspout outlet fitting in the gutter.
How to cut and install a gutter outlet.
Measure carefully to determine the best location for the outlet fitting.
Use tin snips to cut the gutter apron flashing roll in two 3 in.
Pattern shears are tin snips that have long handles and long narrow jaws that reduce the amount of distortion caused to the cut end of the aluminum gutter.
Miter saws are the most common tool used for cutting gutters especially metal and plastic gutters.
Pounding them back in is a temporary fix at best.
It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool.
Pull the tape measure along the length of metal gutter and mark the length you need to cut the gutter with the carpenter s pencil.
You can bend the gutter slightly to easily make the rest of the cut all the way around to the other side.
Or you can cut around to the bottom side stop flip the gutter over and continue cutting from the other side until you meet the other cut in the middle.
Thick using a ferrous metal cutting blade.