Downspouts on gutters that drain large roof areas or if you live in an area with torrential rains.
How to install gutters downspouts.
The above recommendations assume that you have properly sized downspouts every 40 feet.
Apply sealant around the mouth of the connector and raise it to the gutter.
The standard is about inch per 10 feet.
As with gutters a downspout s capacity must match or exceed the expected runoff.
Both the connector and the gutter should not have any water on them.
This will end up with a downspout with a diagonal end.
Then cut the gutters to size and attach the fascia brackets to the rafter tails.
Slope long gutter runs 40 feet or more down both directions from the middle and put a downspout on each end.
Screw a downspout elbow to the outlet tube protruding down from the gutter.
To learn how to install the brackets gutters and downspout keep reading.
Measure in 4 inches from the end corner of the gutter with a tape measure and mark the bottom of the gutter with a pencil.
Rivet all joints including the connection with the outlet.
Using a hacksaw follow the areas where it is marked and saw accordingly.
Once you have all of your supplies start by attaching the downspout outlet and caps to the roof.
Install two u shaped downspout brackets on the corner of the house one high and one low.
Place a step ladder under the area you are installing the downspout.
Try to drop the depth of the trench at least 1 8 inch per foot to help.
Dig a trench eight to 10 feet long 12 to 14 inches deep and about six inches wide for each of the downspouts on your house.
Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run.
Secure the downspout outlet to the gutter with four pop rivets or screws.
Use needlenosed pliers to slightly crimp the elbow to fit into the downspout as shown.
Step 3 attach the downspout to the gutter.
Buy special roof hanger mounting straps for houses without fascia boards or for fascias that aren t vertical.
Finally mount the gutters to the brackets and attach them to the downspout.