Drywall vs Plaster: Which Is Better for Las Vegas Homes?
Most homes in Las Vegas built before 1970 have plaster walls and ceilings. Most built after have drywall. If you’re repairing walls in an older Las Vegas home, understanding the difference matters — because patching plaster with drywall, or vice versa, produces a visible, hollow-sounding result that stands out every time the light changes. Here’s an honest comparison so you can make the right call for your home.
What Is Plaster?
Traditional plaster is applied in multiple coats directly onto wood lath (thin strips of wood) or metal lath. The scratch coat goes on first and bonds to the lath. The brown coat levels and fills. The finish coat creates the final surface. The total assembly is 7/8 to 1 inch thick, hard as concrete when cured, and extremely durable. Las Vegas homes from the 1940s through the late 1960s typically have plaster walls.
What Is Drywall?
Drywall (gypsum board or Sheetrock) is a factory-made panel: gypsum plaster sandwiched between two layers of paper. Panels come in 4×8 or larger sheets, screw to wall studs, and require taping and mudding to finish the seams. Standard thickness in residential construction is 1/2 inch. Drywall is significantly faster and cheaper to install than plaster — which is why it replaced plaster in new construction starting in the late 1950s and early 1960s.
Plaster vs. Drywall: Head-to-Head Comparison
Durability
Plaster wins. Well-maintained plaster walls in Las Vegas homes have lasted 70+ years and are still in excellent condition. Plaster is nearly twice as thick as drywall and much harder — it resists dents, dings, and damage from everyday contact that would leave marks in drywall. If your home has intact plaster and you’re not renovating, there’s no reason to replace it.
Repairability
Drywall wins. A drywall patch can be done by any competent contractor and blends invisibly when done correctly. Plaster repair requires matching the original texture, composition, and technique — and an inexperienced repair will look like a patch. We do plaster repair professionally and the result is invisible, but it takes more time and skill than drywall repair.
Sound Isolation
Plaster wins for existing walls. The thickness and mass of a plaster wall provides better natural sound isolation than standard 1/2 inch drywall. If you live in a pre-1970 Las Vegas home and are concerned about noise between rooms, your plaster walls are actually helping you more than you realize.
Moisture Resistance
Draw. Traditional plaster is actually more moisture-tolerant than standard drywall — it’s not paper-faced, and the lime in many plasters has some antimicrobial properties. However, once plaster absorbs enough water to saturate the lath and bond, it delaminates and fails. Moisture-resistant drywall (green board) used in bathrooms and wet areas performs similarly to plaster in moist conditions.
Cost to Install New
Drywall wins by a large margin. Plaster installation requires skilled tradespeople, multiple coats, and significant drying time between coats. Drywall installation is faster, requires fewer specialized skills, and uses factory-made panels. This is why plaster essentially disappeared from new residential construction by the 1970s.
Las Vegas Desert Climate
Both materials handle Las Vegas’s dry heat reasonably well. The bigger issue is temperature cycling: exterior walls experience significant temperature swings between day and night, which causes all wall assemblies to expand and contract. Plaster, being more rigid, cracks more readily than drywall at joints and corners. Drywall tends to develop screw pops and tape cracks from the same movement but is generally easier to repair when it does.
Should You Convert Plaster to Drywall?
This question comes up frequently in older Las Vegas homes. The short answer: only when the plaster is in poor condition or you’re doing a major renovation anyway. Here’s the honest analysis:
Keep your plaster if: It’s structurally sound (no hollow sections, no large cracks, no delamination), you want to maintain the character of an older home, and you have access to contractors who can do quality plaster repair. Well-maintained plaster is better than drywall in most ways.
Convert to drywall if: Large sections are delaminated or blown, there is extensive water damage, you’re doing a major renovation that already requires opening the walls, or repair costs for the plaster condition would exceed the cost of conversion. Drywall overlay (furring strips over the lath and new drywall) is also an option that avoids the mess of full plaster removal.
Which Is Better for Las Vegas Homes?
For existing homes: keep what you have if it’s in good condition. Plaster that’s intact is a genuine advantage — it’s durable, sound-isolating, and character-giving. Don’t replace it unless you have a good reason.
For new construction and remodels: drywall is the right answer. It’s faster, less expensive, and just as good for most residential applications. The only reason to use plaster in new construction is for a specific aesthetic or acoustic goal.
If you have plaster that needs repair, call us at (725) 337-6885. We’ve been doing plaster repair in Las Vegas for 7 years and can assess whether repair or conversion is the right call for your specific situation.