Use a measuring tape to determine the length of the gutter.
How to run two level roof downspout.
Use a string and 1x2 stakes to lay out the trench.
Mark the trench line.
Place other stakes spaced 8 feet apart in between.
It is very common for dormers and other roof structures that have gutters above the level of the gutters on lower portions of the roof to empty onto the roof surface.
Rain gutters should be attached to the fascia and run the entire length of the roof ending with a downspout.
In this first picture one can see.
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Finally trim a notch in one end of a 36 in.
Purchase enough downspout leader to reach from the upper roof gutter to the lower roof gutter as well as from the lower roof gutter to the ground.
Of the ground and install the last elbow.
Tie the string to the downspout then stretch it out and around all the stakes.
Pound in two stakes 4 feet from the house and directly in front of each downspout.
In this video we show why it is so important to run you upper roofs downspouts to the lower roofs gutter or to the ground.
Just cut several inches from the top half and screw the extension to the elbow on each side.
Bring the downspout to within 1 ft.
The water is allowed to run on the roof surface and is collected by the lower gutters.
Install two u shaped downspout brackets on the corner of the house one high and one low.
Length of downspout to make a fold up extension.
Gutters need to slope towards the downspouts in order to function properly.