Step 3 add these two measurements together then add 1 2 inch.
Attaching gutters to vinyl siding.
Attach the downspout by screwing in a downspout hanger to the house approximately 3 to 4 inches above the end of the downspout.
Inspect your gutters and look for an area where a downspout would not be obstructed on its way from the gutter to the ground near the roof.
Use aluminum galvanized steel or other corrosion resistant nails staples or screws when installing vinyl siding.
1 2 inch 1 3 cm plywood or osb are common substrates and these are generally covered with roofing felt or another moisture barrier prior to siding the walls.
Gutters need a slight slope so that water will flow out of them and not create pools of water.
All fasteners must be able to penetrate a minimum of 1 1 4 32mm into nailable material such as wood sheathing and framing fig.
Aluminum trim pieces require aluminum or stainless steel fasteners.
This renders the siding vulnerable to moisture and voids the warranty even if you seal the hole.
How to fasten a downspout to vinyl siding.
If you want to hang something from your vinyl siding don t even think about drilling through it to attach a hook to the sheathing.
Secure one end of the strap to the siding with a zip screw and a cordless screwdriver with 1 4 inch socket attachment.
Fasten the downspout to the gutter elbow with sheet metal screws according to the manufacturer s instructions.
Add a small elbow and length of downspout to direct water away from the side of the house.
Trace around the downspout.
Most vinyl siding is made to imitate wood lap siding so the lap of the siding is measured at the bottom of the simulated wood panel where the real wood would overlap each other.
Remove any siding or exterior finish that isn t compatible with vinyl siding and make sure the walls are sheathed with a substrate to receive the siding.
Attach the downspout to the hanger and the gutter.
There are at least three alternative ways to do it.