Knight Auto Glass
Locally owned St. George auto glass shop providing windshield replacement and rock-chip repair across Washington County.
Knight Auto Glass is a locally owned shop working out of 1300 West, handling windshield replacement and rock-chip repair for St. George, Santa Clara, Washington, Ivins and Hurricane. Anyone who has driven here for a few years has a windshield story, and the reasons this region eats glass are worth setting out, because most of them can be worked around.
Background
Three factors compound. Chip seal, the loose-aggregate surface treatment used widely on Utah highway resurfacing, throws stone for weeks after it is laid and leaves gravel on the shoulders long after that. Interstate 15 carries heavy freight through the region, and a great deal of the local traffic is towing something back from the sand with gravel still sitting in the fenders. Then the climate finishes what the road starts. Glass expands when heated, and a windshield that has been sitting in afternoon sun is far hotter at its outer surface than the air-conditioned cabin behind it. Aiming cold air straight at hot glass, or running a hot car through a cold wash, creates exactly the stress gradient that turns a stable chip into a crack running the width of the screen. The cheap habit is to vent the cabin first, start the air conditioning on the footwell vents, and bring the windshield down in temperature gradually.
Worth reading alongside this: the trails at Sand Hollow and Toquerville Falls. The directory lists all Auto Glass & Windshield Repair.
Nearby: Master Plumbing Systems, Precision Auto Glass, Anasazi Steakhouse & Gallery.
Categories
Address
1040 N 1300 WSt. George, UT 84770
Contact
- Work Phone: 435-201-7346
- Website: http://knightautoglass.com
Frequently asked questions
Why do windshields crack in hot weather?
Because of thermal stress. Glass expands as it heats, and a windshield baking in direct sun is much hotter on the outside than the cooled cabin side. That differential puts stress across the pane, and an existing chip is where it concentrates. Most summer cracks start at a chip that had been stable for months.
Should I aim the air conditioning at the windshield on a hot day?
Not straight away. Vent the cabin first, run the air conditioning on the lower vents, and let the glass come down in temperature gradually. Blasting cold air onto a windshield that has been in the sun is one of the most reliable ways to turn a chip into a crack.
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