reinforce back side lath and plaster walls

Reinforcing Back Side Lath and Plaster Walls: A Crucial Step in Construction

When it comes to constructing interior walls and ceilings, two popular methods are often compared - lath and plaster versus drywall. While both have their own advantages, reinforcing the back side of lath and plaster walls is a crucial step that sets them apart from modern alternatives like soundproof drywall and fire-rated drywall.

Lath and plaster walls have been around for centuries, gaining popularity due to their excellent soundproofing capabilities. The construction process involves installing horizontal strips of wood (wood lath) coated with plaster, which forms the foundation of the wall. The gaps between these strips allow plaster to be applied through them and form plaster keys that reinforce the structural strength of the wall.

In contrast, drywall features gypsum core construction, where the core is enclosed between two paper backings. While modern soundproof drywall and fire-rated drywall perform well in terms of noise dampening and ability to hold off fires, respectively, they cannot match the performance of lath and plaster walls in these areas.

One of the significant advantages of plaster over drywall is its density, which makes it more effective at blocking sound transfer. Additionally, plaster performs better than regular drywall in terms of soundproofing, insulation, and fireproofing performance. Its hardier construction also makes it a preferred choice for building interior walls and ceilings.

When it comes to reinforcing the back side of lath and plaster walls, the process involves securing plaster keys firmly to the wall, usually after five days. Two more coats of plaster can then be applied once this step is complete. This reinforces the structural strength of the wall and ensures that it can withstand various environmental conditions.

In summary, while drywall has surpassed lath and plaster as a finishing material in recent times, reinforcing the back side of lath and plaster walls is a crucial step that sets them apart from modern alternatives. Plaster's density, performance in soundproofing, insulation, and fireproofing, and hardier construction make it an attractive choice for building interior walls and ceilings. By understanding the differences between these two methods, builders can make informed decisions about which one to use for their projects.

Reinforce back side lath and plaster walls