Water Damage has different classifications meant to be a guideline on how fast it will evaporate. This is because the higher the volume of the water that has inundated a property, the lower its rate of evaporation.

Evaporation plays a big role in water damage restoration. This is because every bit of moisture needs to be taken out from the structure to ensure that water or moisture will not be able to destroy any part of the home, or cause mold or fungal growth. SuperDry San Diego California

WikiPedia gave a lowdown on the four classifications of water damage, in one of its entries on the subject.

Class 1 – Slow Rate of Evaporation. Affects only a portion of a room. Materials have a low permeance/porosity. Minimum moisture is absorbed by the materials.

Class 2 – Fast Rate of Evaporation. Water affects the entire room of carpet and cushion. May have wicked up the walls, but not more than 24 inches. Emergency Commercial Repair

Class 3 – Fastest Rate of Evaporation. Water generally comes from overhead, affecting the entire area; walls, ceilings, insulation, carpet, cushion, etc.

Class 4 – Specialty Drying Situations. Involves materials with a very low permeance/porosity, such as hardwood floors, concrete, crawlspaces, plaster, etc. Drying generally requires very low specific humidity to accomplish drying.”

Read the rest of WikiPedia’s web entry here. https://en.wikipedia.org/wiki/Water_damage

Basing on the abovementioned information, it will be safe to say that First Classification is the easiest to remediate, clean, and restore. Usual causes of such an inundation include malfunctioning of appliances that may have a water source such as a dishwasher or a washing machine. And since these appliances are usually positioned on tiled floors at the very least, the level of inundation does not go worse because the water gets immediately extracted, and wiped out from the surface. Besides, surfaces like tiles are non-porous and is hard for floodwaters to penetrate. Services

Classification Number two of that which has a Fast Rate of Evaporation could be the type of water damage that has already caused a destruction in a home. It pertains to indoor flooding that does not go higher than two feet but has already seeped in unto the walls, and have been absorbed already by cushions and the carpets. This type of water damage can definitely cause more expense that classification number one, especially when professional help has not been sought. It is usually caused by bursting pipes, or overflows, or even emergency flooding from the outside going into the home or commercial establishment. Flood Service