Water damage restoration service – Knoxville

Property owners in Knoxville get hit with flood damage regularly. Whether you’ve suffered from a natural disaster or a localized catastrophe such as a fire suppression activation, Critical Control is standing by to respond 24/7.

The most common cause of water damage is when water gets into a structure or residence via a flood, storm or burst pipes. Sometimes the damage is apparent and evident. In other instances, it’s hidden or not reported.

Remediation of water damage is more complicated than just drying the interior. Modern professional water damage remediation techniques, such as Critical Control, can often minimize damage that otherwise would require a complete structural replacement.

Water Damage Restoration Guidelines are Available – Call for a Professional

A lot of times, property or home owners attempt to address water damage using DIY solutions found online. This is inadvisable. There are guidelines to deal with water damage , and they call on the tools and skills of professionals. These guidelines are detailed in what is known as IICRC Standard Reference Guide or Professional Water Damage Restoration publication. This guide is required to ensure that there is a professional standardisation for scenarios involving water damage structures or homes, as well as the risk associated with it.

Critical Control, a restoration business, can use IICRC guidelines to help them assess the type and extent of each project’s damage.

There are really important reasons why professionals dealing with water damage should adhere to these guidelines. There are certain situations that require our bringing in an Indoor Environmental Professional (IEP). An IEP is someone who has the expertise and training to evaluate an area for contamination and take samples, conduct lab tests, and then give us advice on the kind of water damage that is likely to occur.

This is especially important in situations where the building’s residents are at risk or there is concern regarding contamination.

Categories and classes of Water Damage


Restoration of water damage projects are classified according to category and class depending mostly on the degree of invasion of water.

The category is based on how contaminated the water that enters the structure has been. Category 1 is water that comes from a clean source such as an unclean sink or tub, or a burst water supply.

Category 2 involves water that has significant levels of contaminants and has the potential to cause discomfort or illness if contacted or consumed. This could include waters that are not readily apparent as a threat, such as the discharge from washing machines or overflows from toilets.

Category 3 water is grossly affected, which means that it may contain toxic, pathogenic or other harmful substances in it. It can be caused by backflows of sewage, leaks from toilet traps, as well as the flooding of rivers and streams. The water could contain pesticides, heavy metallics or harmful substances.


The IICRC has also established classes we use in measuring the amount of water intrusion to your property. The system basically serves as an outline of how saturated a building or house should be.

Class 1 is the smallest amount of absorption and water. It is the case when water comes in contact with around 5percent or less of building materials which absorb water. This is due to the fact that most of the substances that are affected by water do not hold or absorb water. Examples include concrete, coated or finished wood, masonry or plaster.

Class 2 means that there is substantial infiltration of water as well as intrusion. This is about 5% up to 40% of the total ceiling, floor and wall are composed of low evaporation materials such as plaster, wood, concrete or masonry.

The porous materials, such as fiberboard, insulation and carpet which make up Class 3 are approximately 40 percent of the floor, wall and ceiling materials, including about 40% in class 3. Other materials like cement or plaster that don’t absorb water have not been adversely affected.

Class 4 means that water has become deeply trapped in the materials that can not readily absorb water, such as concrete, wood, and bricks and mortar. This will require more time to dry and special drying techniques.

How do you dry a water damaged building or house


Physical extraction, dehumidification and evaporation are three ways to get rid of water from buildings. Eliminating water from liquids is at most 500 times more efficient than dehumidifiers and airmovers. The faster the structure can dry, the better. Both extraction and dehumidification methods will be affected by how much material is being removed.

Water damage experts utilize a variety of extraction methods. Some of our tools include tools for subsurface extraction, wands as well as self-propelled tools and vacuum squeegees.

Forcible Evaporation

After the water is removed, the remaining moisture is dried using high-velocity airmovers.

A submerged object absorbs moisture and water when it’s moistened. The result is that the object becomes damp or wet.

The degree of saturation is described as the point where it is impossible to hold any additional moisture. Higher humidity means that the air is closer to saturation.

The evaporation process occurs the time when water molecules transition from a liquid state to a gaseous form. This is called evaporation.

In other words, the object no longer absorbs additional water from the atmosphere. We call that saturation point the point of evaporation. Once the saturation point is reached drying will begin.

High-efficiency airmovers dry the object on two sides in the evaporation phase. They generate strong airflow that is controlled by a filtering system.

An air mover can transport between 10 and 20 percent more air than an ordinary fan, or an ordinary household fan.

The object is dried by air movers approximately 10 times faster than in natural conditions in which no air mover was used.

A high-velocity airflow dries the surface of the object and absorbs the moisture pulled away by the air movement.

Utilizing Heat to Aid the Drying Process

Heat is an important component of any water damage restoration job. We use a variety of heaters to dry materials that are damaged by water.

Electric Heaters: These heaters can be used for drying jobs that require multiple heating sources. You can run multiple heaters simultaneously because of their numerous wattages.

You can also turn down or turn off the electric heater while the job is being done, and not affect other heaters. This means you can turn one heater down while increasing the power of the other to increase efficiency and lower expenses for energy.

Electric heaters are common in restoration projects because they produce essentially no emissions and use minimal amounts of water. They require longer to warm up and need longer drying time.

Hydronic Bioler (TES): These boilers are extremely efficient in heating up quickly, while still producing very little emissions. They can be powered by natural gas or propane.

Hydronic boilers differ from electric heaters as they don’t make use of forced-air heat to spread heat. This can make it difficult to heat large areas evenly using these heaters. They can also be utilized to dry jobs that do not require walls or ceilings to be in the same place.

Hydronic boilers are also often employed when there isn’t enough power available to power electric heaters. They are capable of producing radiant heat and can keep your drying space warm without the requirement of an electric source.


To dry houses and buildings which have suffered damage due to flooding, we make use of Low Grain Refrigerant (LGR) Dehumidifiers.

The LGR Home Dehumidifier can remove 170 pints of moisture from damp structures which have suffered severe water damage within 24 hours.

In addition to extracting water from the air, as a LGR Refrigerant Dehumidifier does, the home dehumidifier will also eliminate as much as 99% of airborne mold spores in the air through the elimination of condensation.

Repairing Hardwood Floor Water Damage

It is important to remove the hardwood floors that have been damaged by water to ensure that repairs can be made from the subflooring up.

The subflooring needs to be taken off and repaired before. Then the affected hardwood boards require sanding down or replaced. Once these repairs are complete and the floor is finished, it should be sanded, refinished and polished to guarantee a uniform appearance.

Carpets are prone to water damage

If you have been unfortunate enough to have an incident of flooding in your home it could be a costly and stressful experience. Even if the water is eliminated from the area right away, there’s the possibility that you will have to eventually replace the flooring.

After investing time and money in restoring your home to pre-flooding condition, it will be a shock to discover that the finished results leave some things to be desired.

It is crucial to determine the extent of damage as soon as you can. One of the initial issues that must be resolved is whether the damaged area needs to be replaced. There is a good chance that the carpet can be maintained and cleaned after drying, and this cleaning will help eliminate some of the worries about the growth of mildew and persistent odors.

Salvaging Carpet After a Water Damage Event

You may notice stains on your carpeting if the water damage was very serious. Sometimes, you will have to change your flooring to get rid of these stains. Another aspect that may prompt you to think about replacing your carpeting is a strong and lingering smell. If you find this to be the case, then you will likely need to replace both your carpet and padding.

Next, determine if your flooring can be dried professionally before deciding whether you want to replace it. If you have a reputable company perform the cleaning, then you’ll have a better idea of how severe the water damage was. We can determine if the carpet should be replaced or can be saved. If the carpet you have is damaged, a few drying methods could further harm it.

Some of the considerations that will determine whether or not the carpet and padding need to be replaced are:

Do your carpets get professionally cleaned, dried, and cleaned?

If the padding underneath your carpet has been damaged, it can impact the length of time your carpet will remain clean. Although your carpet might be dry however the risk of mildew development is present if the padding beneath isn’t dried out as well.

Professional carpet cleaning company is the best way to ensure that your carpet is clean and dry after a flood. Once the company has completed their work, you will be in a position to make an informed decision about the state of your carpeting and decide whether or not you need to replace it.

Drywall that has been damaged by water

The severity of the damage will determine the kind and technique of repair. Repairing water damage can be as simple as removing some drywall and cleaning the area and then putting it back.

On the other hand of the coin significant damages could necessitate a total wall replacement, which includes walls studs and fiberglass insulation.

Water damaged drywall often harbors mold spores which can not be removed easily. Most of the time the drywall will need to be replaced. We use moisture testing tools to assess the extent of the moisture. This helps us identify damaged areas and keep costs restricted to areas that need to be repaired.

Water also causes structural damage, as it causes the wood material to expand and expand and contract. Once the wood is moistened by water, it becomes a lot easier to break. The wood can become brittle if it is left to dry in water for too long.


This problem can be avoided by building owners and homeowners taking immediate action to fix water-related structural issues that affect their property after flooding or other damages caused by water.

Foundation Water Damage

Water damage to a house’s foundation can occur for many reasons. While not every water issue cause structural damage, it is important to address foundation issues as soon as possible to avoid future structural damage.

Water damage to the foundation can trigger a number of different issues dependent on the way it is dealt with. It could cause serious structural damage if not addressed quickly.


Roof Water Damage

Water damage to roofs can result from natural disasters, just like foundation water damage. Roof damage can lead to roof leaks and also damage the foundations of a house or home.

Leaking roofs are extremely expensive and could have major drawbacks. Roof leaks can result in the growth of mold, which can prove fatal. Leaks in the roof may also cause damage to the roof truss system.

If you don’t address leaks in your ceiling right away the risk is that the rafters to decay and then soften. Electrical faults are also common in the case of roof water damage that can lead to the possibility of an electrical fire. There are many reasons to have your roof water damage repaired promptly following a flood or any other unexpected damage.

HVAC Water Damage

If your HVAC system starts to fail or brand-new equipment is found to be defective, it could result in the structure of your home. You are putting your home and business at risk in the absence of HVAC. Mold growth can occur and cause a variety of serious health issues.

Damage to pipes caused by water

If you’re suffering from pipe damage due to water, it is likely to be from a burst pipe in your home. If you’ve determined there is leak, it’s crucial to seek out professional assistance to stop the flow of water and ensure that it doesn’t cause structural damage.

The burst of pipes can cause amount of damage. When pipes are damaged they can let water into your home, causing severe damages and necessitating water damage repair – an event that could bring with it structural damages.

When you see damaged water pipes close off the water supply.

What’s the price to fix water damage?

Water damage restoration cost per square foot

Repair and cleanup costs will vary depending on how much square footage you own. The following pricing breakdown is available from National Flood Services for each square foot

Are water damages insured by the homeowner’s insurance?

If the cause was accidental and sudden homeowners insurance policies generally cover it. The Insurance Information Institute states that homeowners insurance may provide for the repair or replacement of broken windows but not for damages caused by neglect.

Damage caused by neglect can be described as wear and tear to an object or surface due to exposure, lack of preventative upkeep or general deterioration. The Insurance Information Institute in the USA declares that homeowners insurance does NOT cover neglect-related damage.

A homeowner’s policy does not cover water damage caused by flooding. Rather, a flood policy would be required. Mortgage lenders might need flood insurance in specific regions. Flooding can occur because of flooding, over-saturated ground, and surging or overflowing bodies water like rivers, ponds, lakes, streams, oceans together with high winds.