Fiberglass vs Aluminum RV Siding: What Holds Up Better in North Texas?

If you own an RV in North Texas, the materials on the outside of your vehicle matter more than you might think.

Between intense sun, hailstorms, freezing temperatures, and long highway miles, RV siding takes a beating.
One of the most common questions RV owners ask — especially after damage — is:

“Is fiberglass better than aluminum?”

The answer depends on how you use your RV, but in North Texas conditions, the differences become very clear.

What Most RVs Are Made Of Today

Most modern motorhomes and travel trailers use one of two materials:

• Fiberglass siding (laminated panels)

• Aluminum siding (corrugated panels)

Brands like Winnebago, Forest River, and Jayco use both, depending on the model and price range.

Fiberglass RV Siding: Cleaner Look, More Complex Repairs

Fiberglass is the most common material we see on RVs coming through the shop.

Pros:

• Smooth, modern appearance

• Better insulation

• Higher resale value

• More aerodynamic

Cons:

• Prone to cracking or delamination

• Repairs require specialized work

• More expensive to fix if damaged

In North Texas, fiberglass tends to suffer from:

• Heat expansion and contraction

• Hail damage

• Stress cracks near seams

Once damage starts, it usually spreads if not repaired properly.

Aluminum RV Siding: Durable but Not Perfect

Aluminum siding is still common, especially on older or more budget-friendly RVs.

Pros:

• More resistant to cracking

• Easier and cheaper to replace sections

• Holds up well to minor impacts

Cons:

• Dents easily (especially from hail)

• Less modern appearance

• Lower insulation value

• Can look worn over time

In North Texas, aluminum siding often shows:

• Multiple small dents after storms

• Cosmetic wear from sun exposure

Which One Holds Up Better in North Texas?

This is where local conditions matter.

Heat + Sun

• Fiberglass: can fade or stress over time

• Aluminum: holds structure, but looks worn faster

Hail

• Fiberglass: cracks or fractures

• Aluminum: dents, but stays intact

Cold Snaps

• Fiberglass: can become brittle

• Aluminum: less affected structurally

Which One Is Easier to Repair?

This is where most RV owners notice the difference.

• Aluminum:
  Panels can often be replaced individually

• Fiberglass:
  Requires blending, reinforcement, and paint matching

Fiberglass repairs need to be done correctly — otherwise cracks return or delamination spreads.

What We See Most Around Fort Worth

In the Fort Worth, Keller, and North Tarrant County area, most newer RVs coming in are fiberglass.

Typical issues include:

• Sidewall cracks

• Delamination

• Paint fading

• Storm-related damage

Aluminum RVs usually come in for:

• Dent repair after hail

• Panel replacement

• Cosmetic refresh

So… Which One Should You Choose?

If you’re buying or maintaining an RV in North Texas:

• Fiberglass → better look, higher value, but needs proper repair when damaged

• Aluminum → tougher for small impacts, but shows wear more quickly

There’s no “perfect” option — just trade-offs depending on how you use your RV.

If Your RV Exterior Is Damaged

Whether your RV has fiberglass cracks or aluminum panel damage, getting it checked early usually prevents bigger issues later.

At Alliance CoachWorks, we regularly work on both types of RV siding — handling everything from small repairs to full panel restoration.

Reach out and we’ll take a look, walk you through it, and explain what makes the most sense.

10019 Harmon Rd
Fort Worth, TX 76177
(817) 897-2901