Flooring, Drywall & Interior Finishes in Altadena
Flooring and drywall in Altadena, CA: soot and moisture tested room by room, then each wall and floor marked to clean, seal or remove before new work begins.
A white cloth wiped along the top of a door casing is the first test in an Altadena house that sat near smoke. Soot settles on ledges nobody dusts, so a gray or oily streak on the cloth shows how far it traveled and whether it reached the back bedrooms. We repeat that wipe room by room, then hold a moisture meter to the base of each wall where water from the firefight may have soaked in.
Reading the cloth and the meter
A faint dusting that wipes off clean points toward washing and a sealing primer. A greasy streak that smears, or a sharp burnt smell when the cloth is held close, points to residue that has worked into the paper face of the drywall and the pores of the subfloor. High readings at the bottom of a wall mean the board has wicked water up from the floor. Each room gets a line on the written scope that says clean, seal or remove, with the cloth result and the meter reading noted beside it.
Floors once the walls are decided
Floors wait until the walls are settled, because pulling and hanging board drops dust and mud on everything below. Carpet and pad in a smoky room come out, since the fibers hold odor. Hardwood or engineered boards may be sanded, sealed and kept if the meter and the smell both pass. Under any flooring that is removed, the subfloor is wiped down, sealed where it carries odor and checked for flatness. Mapped fire hazard zones reach into parts of Altadena, and on those lots new exterior work has to meet ember-resistance rules, reviewed by Los Angeles County for this unincorporated community.
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Flooring, Drywall & Interior Finishes in Altadena: questions
The garage is where it counts. Living space over a garage calls for Type X board, 5/8 inch thick, on the garage ceiling, and the walls holding up that ceiling need gypsum as well. On the common wall between garage and living space, regular gypsum is the minimum. Because Altadena is unincorporated, Los Angeles County building inspectors check that separation.
After any damaged flooring is lifted, the subfloor gets the same cloth test as the walls, then a moisture reading and a long straightedge laid in several directions. Panels that bounce are screwed to the joists, high seams are planed and low spots are filled. Odor in the wood is locked in with a shellac-based primer before underlayment goes down.
Not always. Board that still smells after a careful cleaning is removed, since odor lives in the gypsum and its paper, and so is any panel that took water while the fire was fought. Walls carrying only a light film can be washed, sealed and painted. The written scope names the outcome for each room before work starts.
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