When you think of water damage to the drywall in your house, what is it that comes to mind? If you are like a lot of inexperienced homeowners, the first thing you will think of will be discoloration or streaky brown stains. However, moisture damage to drywall may not always be so easy to spot. In fact, if your walls are sustaining water damage, you may not notice at all. There are some pretty inconspicuous signs of water damage when it comes to drywall that you should get very familiar with as a homeowner.
You notice that the drywall is bowing outward.
Drywall is made from a tightly compressed and chalky substance that is highly absorbent. When moisture makes its way into the drywall, the interior will act as a sponge and absorb the moisture. Where the weakened area of the drywall is may bow outward due to the weight of the saturated wall. If the weight of the excess moisture itself does not cause bowing, the change in texture and shape as the drywall dries out will.
Paint seems to be bubbling up from the surface of your drywall.
Latex paint has a primarily oil base that will not mix or dilute when it comes in contact with water. Therefore, if moisture gets into your drywall, the water droplets that are exuded will not always be able to break through the painted layer. This can cause small bubbles to show up beneath the paint. The bubbles may be so tiny that running your fingertips across the bubbled surface will just feel like a rough spot. If you suspect that water is causing the problem, grab a small needle and poke holes in the paint to see if moisture comes out.
You have mildew or mold spots forming on the bottom trim of the wall.
In some cases, moisture that makes its way into the drywall in your home will simply drain to the bottom of the sheet of material. The excess moisture can pool just below the sheet of drywall, behind the trim. This excess moisture may cause mold and mildew to develop either at the top or bottom of the trim. This may look almost like a line of dust or grime, but if you inspect the dirt closer, it may be moist to the touch or have a slight bluish-green tint. To further inspect for water damage, pull off the trim and take a look. Click here for more information about residential drywall installers.