Rough work determines how durable, quiet, and “straight” your renovation will feel years later. In Los Angeles, where homes range from older stucco properties to modern condos, the right choice of plaster, floor screed, and drywall depends on humidity exposure, substrate condition, and scheduling. Plaster: Gypsum-based mixes are popular for interior walls because they set faster, sand easily, and deliver a smooth finish for paint. Cement-lime plaster is stronger and more moisture tolerant, making it a better option for bathrooms, laundry areas, and certain exterior-adjacent spaces. When choosing, look at working time, adhesion to concrete or masonry, and the recommended layer thickness—thick coats often require reinforcement mesh and proper priming to avoid cracking. Screed: For leveling floors, decide between traditional cement-sand screed and self-leveling compounds. Classic screed works well for larger height differences but needs correct curing time before installing tile, vinyl, or engineered wood. Self-leveling products are faster for minor corrections and radiant heating overlays, but they require clean, primed substrates and precise water ratios. Consider compressive strength, shrinkage control, and moisture readings—especially important before installing sensitive floor coverings. Drywall: Standard gypsum board is suitable for most living areas. Use moisture-resistant boards for bathrooms or areas near plumbing; fire-rated boards are common for garages and multi-unit buildings. Check thickness (often 1/2" or 5/8"), stud spacing, and acoustic needs. Quality joint compound, paper or fiberglass tape, and proper screw spacing prevent visible seams and nail pops. If you’re comparing contractors in a business directory, ask what brands and systems they specify, how they prepare surfaces, and how they control drying and curing—those details matter more than the cheapest bag price.
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