Size Does Matter, Windshield Size That Is

When it comes to windshields, size does matter. A windshield that is 71 inches tall and 104 inches wide will require more than one technician to complete the replacement process safely.

Replacing RV glass is a complicated process. (Photo courtesy of Fix-A-Crack)

“I’ve been doing RV glass for the past 35 years myself,” says Dan Boehmer, president of Rolladeck Industries. The company’s Rolladeck Windshield Setting System can be used with regular windshields and large windshields for RVs, buses, semi-trucks, international work, and heavy equipment vehicles, including cranes, dump trucks and excavators.

Boehmer got into installing the larger windshields seven years ago when RVs became popular where he lives and works in southern Florida. “Just handling the sheer size of the glass,” Boehmer says of the biggest challenge when installing a large windshield. Transporting and inspecting the windshield are also challenges because of its size.

Many RV glasses have direct bonding and a decorative bonding called beauty bead. Boehmer says that the beauty bead must also be replaced with the windshield. First, he sets the new windshield in the base with urethane, tapes it, and allows two hours for the urethane to cure.

Boehmer doesn’t block. Some technicians, Boehmer says, will choose to block the new windshield in place with rubber blocks. “It can put stress on the glass in these places,” Boehmer says.

The next day, he returns, removes the tape, cleans the windshield and surrounding area, then masks off the area to fill in the new beauty bead. “It leaves a nice smooth finish,” he says.

Large windshields usually need replacement because of rock damage, but Boehmer says it is not unusual to see a large windshield have cracks from stress, such as when the vehicle’s tire blew out.

Large windshield replacements require many hands, per Maples. (Photo courtesy of Fix-A-Crack)

Steven Maples owns Fix-A-Crack Windshield Repair & Replacement LLC in McAllen, Texas. “You absolutely need two people,” he says. Maples began installing large windshields about 10 years ago. His business uses platform tools to push 350-pound windshields into place, and standard auto glass tools. “You need two sets of eyes on [the windshield during replacement],” says Maples. He regularly uses a Fein knife “because I can control where the blade goes and how deep the blade goes” into the urethane.

“The major concern is safety,” Maples says. Installing and repairing large windshields requires certain pieces of safety equipment, including back belts, step ladders, gloves and appropriate primer. “Everything that [Auto Glass Safety Council] AGSC goes through,” Maples says.

When it comes to safety, Maples says the most difficult part of installing large windshields is getting the person helping you to listen. He prefers having someone help him who knows nothing about installing large windshields, because then he can teach them the right way to install. “We’re either going to do it right, or we’re not going to do it,” Maples says.

Large windshields also present a challenge because they are more vertical than in automobiles. “They’re almost completely vertical,” he says. Maples says he uses a Rolladeck setting system to ensure the windshield is set level. Large windshields also often require working outside in weather where the RV is parked.

As part of the installation process, Maples calls manufacturers for instruction sets. He also takes into account whether the cap in the RV has twisted, which can happen if a front tire is hit or the RV was not set level when parked. The entire coach of the RV and the frame can bend. “Before we ever take a job — you have to look at that.” If he suspects a twist or any frame damage, he insists the customer take the RV to a body shop first. Of the last 10 RVs his company has worked on, seven were taken to an auto shop first for framework. If the frame is not repaired, Maples says, then the next time the RV needs windshield repair or replacement, the cost will be on the customer, not the insurance company.

“There’s no tolerance for error [with 350-pound windshields],” Maples says. If an object, such as a piece of wood, went through the windshield, then the windshield frame must be checked before the windshield is replaced. “They are different than automobiles, because there is so much weight on the gasket.”

A look at a completed replacement job. (Photo courtesy of Fix-A-Crack)

Maples does not recommend that a technician suddenly decide to start installing and repairing large windshields. Education is important, as well as having necessary insurance coverage. “In order for me to even touch a piece of auto glass — I’m insured,” Maples says. During RV season, he says he increases his insurance coverage, because, if something goes wrong, he could be held responsible for a vehicle that costs $500,000.

“God forbid the day that RVs get ADAS, and it’s coming,” Maples says.

Chris Alford began installing large windshields five years ago. He works for Riteway Auto Glass in Lexington, Kentucky. “I guess just the need for it in our area,” Alford says of why he chose to learn about installing large windshields.

Alford learned how important it is to notice if an RV has twisted, especially in older models. When installing a new windshield in an RV that has twisted, the new windshield will not go back in place as easily. Stress cracks on a windshield are often telltale signs that a cab has twisted.

“We typically like to have three guys,” Alford says of the installation process. He would like to continue this line of work for many years, and installing alone is not easy on the human body.

Riteway does a lot of mobile work, especially on Peterbilts, but RVs require being in the shop. “Having home field advantage can be the key to success,” Alford says. The large windshield is stored there in the shop and the materials are there when replicating the mold around the new windshield. “It’s always a fun time. A lot of attention to detail.”

This article is from glassBYTEs™, the free e-newsletter that covers the latest auto glass industry news. Click HERE to sign up—there is no charge. Interested in a deeper dive? Free subscriptions to Auto Glass Repair and Replacement (AGRR) magazine in print or digital format are available. Subscribe at no charge HERE.

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2 Responses to Size Does Matter, Windshield Size That Is

  1. Rick says:

    With today’s 30 minute drive away urethanes, an install in the morning, let set for an hour or so, you can beauty cap in the afternoon. Just don’t forget to tape off for a nice finish.

  2. Arlene F Thomas says:

    I don’t need a windshield replacement for the motorhome. Just a size estimate for a Sun blocking silver tarp, for a 1988 Fleetwood motorhome.

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