You will need a downspout for every 40 feet of gutter.
How to install rain gutters diy.
Project step by step 20 cutting the gutter.
The slope of a gutter to the downspout should drop 1 inch for every 20 feet of run.
After aligning the gutter with the string affix a hanger at the downspout end.
Snap the sections together.
Check for level and then drop the string 1 inch every 20 feet.
Afterward insert a 1 inch 2 5 cm 8 32 stainless steel machine screw through the hole and cap it with a flanged nut to secure the gutter to the bracket.
Step 1 determine length of gutters using a measuring tape calculate how much length you will need for the gutters.
Form strip miter joint at corner cover the joint between two lengths of gutter at each corner with a strip miter a 3 inch wide strip of aluminum.
Secure it with eight pop rivets or sheet metal screws.
Cut a two inch long notch in the front lip of the gutter with tin snips to join a rain gutter section.
Secure the gutters to the fascia brackets using machine screws.
Measure the fascia to determine the length of the gutter.
Apply gutter sealant to an end cap then press the cap onto one end of the gutter.
Wrap the aluminum strip tight around the underside of the gutter.
The gutters will run right below the shingle line and are attached to the fascia below the roof.
Use an electric drill to create a 3 16 inch 0 48 cm diameter hole into the front side of the gutter.
It s much easier to join sections on the ground than to work from the top of a ladder.