Can Wet Flooring and Drywall Be Saved?

Once the water is off and the puddles are gone, attention usually turns to the floor. Then to the walls. Homeowners understandably want to know how much has to come out, and the honest answer is that it depends on three things: what kind of water it was, how long the materials stayed wet, and what those materials are made of. Clean water dealt with quickly gives the best odds. Contaminated water, or any water left to sit for days, narrows the options considerably.

Flooring types behave very differently once they get wet:

• Carpet and underpad. Carpet soaked by clean water and dried promptly can often stay. The pad underneath holds far more water and is usually replaced, partly because it is inexpensive compared with the carpet. Carpet exposed to sewage is generally discarded.
• Solid hardwood. Boards absorb water and swell, which shows up as cupping, where the edges rise above the centre. Drying with specialized mats or panels sometimes brings them back close to flat, though refinishing may still be needed. Boards that have buckled off the subfloor are harder to rescue.
• Engineered hardwood. The thin wood surface sits on a layered core that can delaminate when soaked. Results vary by product and by how long the water sat.
• Laminate. Most laminate has a fibreboard core that swells permanently along the joints. Wet laminate is rarely worth saving.
• Vinyl plank and sheet vinyl. The vinyl itself shrugs off water, but it can trap moisture against the subfloor underneath. Planks are often lifted so the floor below can dry.
• Ceramic and porcelain tile. The tile is fine. The question is the grout, the setting bed and whatever wood subfloor lies beneath it.

Drywall is a different problem. The gypsum core and its paper facing act like a wick, drawing water upward well above the level of a puddle on the floor. Gypsum that has been thoroughly soaked loses strength and can crumble or sag, and the paper is an easy food source for mould. A wall that took on a small amount of clean water and was dried quickly may only need monitoring. A wall that sat wet for a few days, or one that was exposed to grey or black water, usually has its lower section cut out and replaced.

Deciding which sections can stay is much easier with moisture readings in hand, which is why restoration crews, including the team at Water Damage Restoration Sherwood Park, measure and map moisture before recommending any tear-out. Cutting too little leaves wet material hidden in the wall. Cutting too much adds needless cost to the rebuild.

What sits behind the drywall often settles the matter. Fibreglass batt insulation that gets wet tends to sag and hold moisture against the framing, so it is typically pulled out once the wall is opened. Vapour barrier on exterior walls can trap water inside the cavity. Baseboards made of MDF swell at the bottom edge and seldom recover, while solid wood trim can sometimes be dried and reinstalled.

Ceilings need particular care. Drywall overhead that is bulging with water can fall without warning, and the weight involved is enough to injure someone standing below. That is one area where waiting for a professional is the safer choice.

The subfloor deserves the last word. Plywood and oriented strand board under every type of flooring can absorb water, and even if the finish on top survives, a subfloor that stays damp will eventually cause trouble with odours, mould or loose fasteners. Confirming it is dry before new flooring goes down is a small step that prevents a repeat of the whole job.