Blind valleys simplify framing to keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge.
Placement of gutters where roof pitches meet.
Place downspouts in inconspicuous locations if possible.
The highest tip of the guttering should gently slope downwards to end at the downspout.
Hanger spacing defining a properly hanger spacing will be given by the predominant climate of your area.
This means the downspout end of the gutter should be set 3 4 of an inch lower than the other end.
How to install gutters in 8 steps.
Working out gutter slope as a general rule gutter slope is set at 1 4 inch per 10 feet of guttering.
Gutter should be pitched 1 16 or greater per foot for proper drainage.
Steeper pitches require less clearance.
Gutters should be placed below the extended roof line so that snow and ice can slide clear.
The incline should be approximately one inch for every sixteen feet.
Downspouts on gutters that drain large roof areas or if you live in an area with torrential rains.
For especially long gutter runs of 40 feet or more the slope or pitch should start in the middle diverting the water to a downspout at each end.
As you can see proper gutter placement plays an integral role in the maintenance of your house.
The water is allowed to run on the roof surface and is collected by the lower gutters.
Locate downspouts in unobstructed areas where water can be directed away from the house.
Determine what works best for your house before ordering gutters and attachments.
The gutter troughs and downspouts must be installed with this pitch in mind so that water flows down instead of remaining stagnant in the gutter trough.
Using a pitch measuring tool that i d made we also determined that the exact pitch of the shed roof was 3 1 2 in 12.
The next factor to take into account is the pitch of your roof because the pitch will cause water to flow in a certain direction.
For example if you have 30 feet of guttering the calculation is 1 4 x 3 0 75 i e.
Or you can slope the gutters down from each end toward a single downspout placed in the middle of the run.
Gutter talk lets talk roof gutters and downspouts.
As a general rule at least one downspout should be placed per every 40 linear feet of gutter.
Gutter can be run level for appearance but addition downspout will be necessary see section on proper gutter and downspout sizing.
Here are some guidelines for placement of downspouts.
To prevent this you should place gutters a few inches lower the roof.
Often proper placement of downspouts is a more cost effective method that achieves better results simply by reducing the volume of roof runoff soaking into the ground.
That s why we advise you to take the gutter placement of your house seriously.
