Downspouts help protect your roof from moisture damage by diverting water away from them. Pro Quality Construction Inc., your trusted roof repair contractor, shares some facts below:
Just Two Inches of Rain in a Day Can Send Over a Thousand Gallons of Water Flowing to the Downspouts
To put this into perspective, a bathtub can hold just 42 gallons. To calculate how much drainage capacity your gutters will need, divide your roof’s inch per hour watershed by your area’s rainfall intensity (which is measured in a 5-minute interval).
There Should Be a Downspout for Every 40 Linear Feet of Gutter
To make sure your gutters can handle the weight load from rainwater, it’s important to make sure your downspouts and their fasteners are adequately spaced. As a general rule, there needs to be a downspout for every 40 linear feet of gutter. And as for your gutter fasteners, they should be spaced three feet or less (or two feet apart if your area experiences snowfall).
The Different Types of Gutter Hangers
You also need to install the right type of gutter hanger to ensure your gutters will have enough support. Here’s a quick overview:
- Spikes and ferrules – Spikes and ferrules are inexpensive but aren’t the best choice for temperate regions. That’s because metal expands and contracts as temperatures rise and fall, which can loosen spikes and ferrules over time.
- Brackets and Straps – We recommend homeowners in rainy areas install brackets and straps, which wrap around half-round gutters and can provide more support.
To learn more about your options, consult one of your local roofers.
Downspouts Shouldn’t Be Installed Near Paving Stones and Walkways
That’s because paving stones and concrete walkways might prevent rainwater from draining away and cause it to back up. If moving your downspouts isn’t an option, there’s the option of installing downspout extensions, which should be able to move rainwater’s discharge point at least four feet away from your home.
Pro Quality Construction Inc. offers a wide range of professional exterior services, including gutter and siding replacement services. To request a free estimate, call us at (844) 499-7878 or fill out this form.