Siding in Sioux Falls
Siding in Sioux Falls has to keep out wind-driven rain and snow, stand up to severe storms, and handle temperature swings from deep winter cold to summer heat.
The city's license
In Sioux Falls, contractors doing siding, shingling, or window and door replacement with no structural changes on one- and two-family homes and townhomes need the city's Residential Roofing & Repair license. It requires an exam, a $20,000 compliance bond and at least $300,000 of general liability insurance. If the job includes structural repairs, such as replacing rotted framing, the contractor needs the Residential Building Contractor license. Ask for the license before you sign.
Wind
During the May 12, 2022 derecho, straight-line winds of 50 to 70 mph were widespread across the region, with gusts measured at 97 mph in Madison and 107 mph in Tripp. Siding that isn't nailed properly blows off, starting at corners and edges. Ask the contractor how they'll fasten the siding and what wind rating the product carries. For vinyl, panels need to be nailed loosely enough to move with temperature but in the correct pattern to stay on.
Deep cold and freeze-thaw
NOAA's engineering weather data for Sioux Falls gives a 99% winter design temperature of −11°F and a 1% summer design temperature of 91°F, and lists about 75 freeze-thaw cycles a year. Vinyl expands and contracts a lot across that range, and it becomes brittle in deep cold, cracking when hit by hail, a ladder or a snowblower's thrown ice. Fiber cement and engineered wood resist impact better. Ask the contractor how the product you're choosing handles cold, and how they'll leave room for expansion.
What's behind the siding
Wind-driven rain and snow get behind siding. The house wrap, flashing at windows and doors, and a path for water to drain out keep that water from rotting the sheathing. Ask what wrap and flashing the contractor uses, and whether they recommend a drainage gap. If you're adding insulation under new siding, ask how windows and doors will be extended so their flashing still works.
Comparing bids
Ask for bids with the same scope: removal, sheathing repair pricing, house wrap, flashing, trim, siding product, caulk and paint (for fiber cement or wood), and disposal. Get the manufacturer warranty and the contractor's workmanship warranty in writing.
Timing
Caulk and paint have minimum application temperatures. If you're siding in fall, ask how the contractor will finish the job before cold weather.