Frequently Asked Questions
Mold
How Long Does an Inspection Take?
Most residential inspections require 1 to 2 hours on-site. Commercial inspections vary by the scope of work. Often initial results are available verbally within 24 hours, when our in-house laboratory is utilized. A detailed written report is often available within 2 or 3 days. If samples are submitted for third-party laboratory analysis, results and IET’s report may not be available in full for up to 4 Days.
Does Killing Mold With Bleach or Another Biocide Solve the Problem?
No. Mold spores can be more difficult to kill than expected. The process of applying the biocide often disturbs the mold and disperses it into the air, where it eludes the biocide and may increase exposure for occupants.
According to the US EPA, “ The purpose of mold remediation is to remove the mold to prevent human exposure and damage to building materials and furnishings. It is necessary to clean up mold contamination, not just to kill the mold. Dead mold is still allergenic, and some dead molds are potentially toxic. The use of a biocide, such as chlorine bleach, is not recommended as a routine practice during mold remediation…”
Why Are Even Small Water Leaks Important to Locate and Stop?
Small or intermittent leaks can over time lead to significant mold growth inside wall cavities and in other hidden areas, and eventually can cause structural damage. IET’s thermal imaging, on-site moisture monitoring systems and moisture mapping can help locate these leaks before they cause major damage.
What Are the Actual Health Risks of Mold Growth in Buildings?
Molds are capable of causing health problems in three main ways:
Infection. They can begin to grow inside the body. Mold (fungal) infections are rare except among people who are immune-compromised.
Allergies. For those people who are allergic to a particular mold, the health effects can be quite serious. With high exposure levels, it is possible for mold allergies to develop. Aggravation of asthma and sinusitis can also occur, and has aspects in common with allergic reactions.
Toxic effects. Many molds produce fungal poisons (mycotoxins) as a defense mechanism against other micro-organisms. Some of these are toxic to humans if there is a sufficient dose. Whether mold growth in buildings provides a sufficient dose to cause serious human health effects is hotly debated among scientists.
Can I Clean-up the Mold by Myself?
Certainly, although we do not recommend it for most people. You should be aware that if there is more than a very small area of mold growth involved, you run a significant risk of spreading the contamination unless specialty equipment and techniques are used. In addition, potential exposure to contaminants for those doing the work can be quite significant.
Do You Do Mold Remediation as Well?
No. To prevent conflict of interest, every state with established regulations for mold inspection and remediation has prohibited companies from functioning in both roles on the same project. While the same company can hold both mold assessment and mold remediation licenses in the state of Florida, they are prohibited from performing both processes on the same project.
What Regulations Apply to Mold Inspection and Remediation?
As of May 2011, there are no federal regulations other than OSHA regulations and others that apply to all businesses. OSHA does not regulate mold.
State regulations vary, and currently exist in the State of Florida requiring all Mold Assessors and Mold Remediation Companies to be licensed with the state, and carry the necessary insurance for compliance with state requirements. IET’s staff compliance, experience and education exceeds all state requirements.
Can I Stay in My Home or Office During Mold Remediation Activities?
Possibly, depending on the location of the work area(s) and entrances. However, you should keep in mind that the process and the equipment are often loud and disruptive, and quite a few people who attempt to remain on-site during the process wind up regretting the decision. If damage is extensive, it is often better to leave during remediation, which may allow the process to be completed more quickly.
Can You Determine if Mold Is Present in My Air handler and Ductwork?
IET can inspect accessible sections of the HVAC systems. Disassembling the system for a thorough inspection requires HVAC licensing from the state of Florida. Most inspections do not require disassembling the HVAC system.
Is the Mold Inspection Covered by My Homeowners Insurance?
Possibly. Many insurance companies retain us to investigate conditions, or reimburse policyholders who use our services. However, whether coverage will be provided in a particular case should be discussed with your agent or adjuster.
If I Smell Odors, Does It Mean That I Have a Mold Problem?
The odors produced by molds vary by type of mold, by food source and by other environmental conditions. Odors, which are gases, can be present even when the mold particles themselves are still trapped in areas such as wall cavities. So odors can be present even when occupants are not being directly exposed to mold particles.
There are obviously many other potential causes of unpleasant odor in a building, from dead animals to pesticides, to off-gassing of furnishings, and many others
Can Mold Be Present in a Newly Constructed Home?
Absolutely. Building materials such as drywall and lumber are sometimes not protected adequately before construction, resulting in mold growth. Also, rain often occurs during construction, causing moisture to absorb into exposed materials, and many construction materials contain moisture naturally. This excessive moisture is not always thoroughly dried before the structure is closed up, trapping the moisture and sometimes resulting in mold growth.
Can Mold Be Cleaned?
Mold can be cleaned from most non-porous and semi-porous materials, although sometimes replacement is more appropriate for financial or other reasons. On porous materials such as drywall and fabrics, mold growth usually cannot be effectively removed and the item or material must be replaced. Cleaning of bathroom tiles and non-porous surfaces for surface growth is OK.
How Does Mold Growth Occur?
Mold growth requires a food source and moisture. Most building materials can serve as a food source, so the limiting factor is usually moisture. If materials remain dry, mold will not grow. Moisture intrusion through the building envelope (roof and walls), plumbing leaks and excessive humidity are the most common source of moisture leading to mold growth.
Air Quality Testing
Will Air Cleaners or Ozone Generators Remove Mold From My Home?
Some air cleaners will filter out mold spores and particles that pass through the unit. However, in a significantly contaminated environment, the rate of air filtration is seldom high enough to significantly reduce exposure for the occupants.
Ozone is a toxic gas. Generators that produce it have been sold for decades, with claims that it “purifies the air” and controls indoor air pollution. These claims have come under increasing fire and are generally rejected by indoor air quality experts. The state of California implemented much more stringent restrictions on indoor use of ozone generators as of Jan. 1, 2008.
What Kind of Reports Does IEt Provide?
IET designs each report to fit a customer’s specific needs. Some of the basic categories include:
Pre-Purchase Inspection
Mold Remediation Protocol
PRV or Post Remediation Verification
Black Water or Sewage Investigation
Why Is Humidity Control Important for Indoor Environmental Health in the SE Us?
The most common reasons for the development of indoor environmental problems in the Southeast’s hot/humid climate are damp building materials and excessive humidity. Even when humid buildings are not damp enough to directly cause mold growth, the excess humidity means even very small leaks or spills evaporate too slowly, allowing materials to remain wet for too long and mold growth to become much more likely.
If I See Mold Around My Supply Air Vents, What Should I Do?
This is generally an indication of excessive humidity in the indoor air, although in some cases it can be related to a malfunction of the air conditioning system.
First have the AC system checked to make sure it is functioning properly. Then measure the indoor relative humidity with an accurate hygrometer. If relative humidity is consistently above 60%, it is excessive. IET is experienced in helping locate and correct humidity problems, which have a multitude of possible causes.
Why Is Establishing a Baseline of Indoor Air Contaminants Important?
Establishing a baseline means identifying what contaminants are present and at what levels before changes occur. A baseline gives you measurable data you can compare later, helps track improvements or future issues, and supports decision-making on mitigation or maintenance strategies. Technicians tailor sampling and interpretation to your building’s conditions.
Can Indoor Air Quality Testing Help if People Feel Sick in a Building?
Yes, indoor air quality testing can help determine if symptoms like headaches or irritation are linked to indoor conditions. By measuring contaminants and comparing them to expected baselines, inspectors can identify Sick Building Syndrome or building-related illness triggers and recommend corrective protocols to improve occupant comfort and health.
How Experienced Are the Professionals Doing Indoor Air Quality Testing?
The indoor air quality inspection team averages over 15 years of individual experience in indoor environmental science and building health. This depth of expertise ensures accurate sampling, thoughtful interpretation of contaminant levels, and actionable recommendations tailored to your property’s unique air quality challenges.
How Are IAQ Samples Analyzed and Reported?
Air and contaminant samples are analyzed either in IET’s in-house lab or a third-party lab. Results show which contaminants are present and at what concentrations. After analysis, you receive a report explaining results, what they mean for your health and building, and practical next steps to improve indoor air conditions.
Do I Need to Prepare My Home or Building Before Indoor Air Quality Testing?
No special preparation is required before indoor air quality testing. Inspectors review your building history and conduct a detailed interview to understand normal usage and concerns. Testing is performed under typical conditions so results accurately reflect everyday air quality and establish a reliable baseline for evaluating contaminants and improvement options.
Will Indoor Air Quality Testing Tell Me Where the Problem Is Coming From?
Yes, indoor air quality testing helps identify what contaminants are present, how much exists, and likely sources contributing to the issue. By combining air sampling with building history and usage patterns, inspectors can determine whether contaminants are coming from materials, activities, or environmental conditions and recommend targeted corrective actions.
Mold Inspection
How Do Experts Test for Mold During an Inspection?
Experts test for mold by collecting air, surface, and material samples during the inspection and having them analyzed under a microscope or cultured in a lab. An outdoor air sample is typically included for comparison to determine whether indoor spore levels are unusually high, giving a clear picture of mold presence and concentrations.
What Specialized Tools Are Used in a Mold Inspection?
Mold inspections use specialized equipment such as moisture meters, hygrometers, thermal imaging cameras, borescopes, laser thermometers, and particle counters to locate moisture sources and hidden mold growth in walls, ceilings, and ductwork. Digital photography documents conditions so results are clear and actionable in the final report.
What Information Is Included in a Mold Inspection Report?
A mold inspection report includes photo documentation, spore levels, mold species analysis, inspector conclusions, and recommendations. If requested, IET can also develop a detailed mold remediation protocol that guides a contractor on how to remove mold safely and efficiently.
Why Shouldn’t I Rely on DIY Mold Testing Kits?
DIY mold test kits are limited because they cannot reliably determine whether mold is actually growing inside the building, what mold species are present, how far it has spread, or what steps are needed to fix the underlying problem. Professional mold inspection offers scientifically supported analysis and interpretation.
Can a Mold Inspection Tell Me if Mold Is Still Active or Old?
Yes, a mold inspection helps determine whether mold growth is active or historical by evaluating moisture conditions, spore levels, and sample results. Active mold is typically linked to ongoing moisture issues, while older mold may show lower spore activity but still require remediation depending on location and condition.
Water Damage Assessments
When Should I Schedule a Water Damage or Moisture Assessment?
A water damage or moisture assessment should be scheduled after leaks, flooding, plumbing failures, roof issues, or unexplained odors. Early assessment helps confirm whether materials are drying properly and whether moisture remains trapped in building materials, reducing the risk of mold growth and long-term indoor air quality problems.
Can a Moisture Assessment Help Prevent Mold Growth?
Yes, a moisture assessment helps prevent mold growth by identifying damp materials and unresolved moisture sources early. Mold requires moisture to grow, so locating and correcting wet conditions quickly reduces the likelihood of mold colonization and supports healthier indoor environments before remediation becomes necessary.
How Is a Water Damage Assessment Different From Mold Inspection?
A water damage assessment focuses on detecting moisture and identifying water intrusion sources, while a mold inspection evaluates whether mold growth is present. Moisture assessments are often performed first because controlling moisture is essential to preventing mold and protecting building materials and indoor air quality.
Is a Moisture Assessment Useful Even if There Is No Visible Water Damage?
Yes, a moisture assessment is valuable even without visible damage because water often travels behind walls, under floors, or above ceilings. Specialized tools detect elevated moisture levels that cannot be seen, helping uncover hidden problems early and reducing the risk of mold growth or material deterioration.
Can a Water Damage Assessment Support Insurance or Contractor Decisions?
Yes, water damage assessments provide objective documentation of moisture conditions that can support conversations with contractors, property managers, or insurance professionals. Clear findings help define the scope of drying or repairs, reduce disputes, and ensure decisions are based on measured conditions rather than assumptions.
Should a Moisture Assessment Be Done Before Rebuilding After Water Damage?
Yes, a moisture assessment should be completed before rebuilding to confirm materials are fully dry and stable. Rebuilding over damp materials can trap moisture, leading to mold growth and costly rework. Verifying conditions first helps protect repairs and supports long-term indoor environmental health.
Post Remediation Verification
How Long Does Post Remediation Verification Take?
Most residential post remediation testing takes 1-3 hours on-site, with laboratory results typically available within 24-48 hours. Larger commercial properties may require additional time depending on square footage and remediation scope.
What Happens if the Verification Fails?
If testing reveals elevated levels of mold spores or other contaminants, IET provides detailed recommendations for additional remediation work. Once addressed, the team returns to conduct re-testing at no additional inspection fee until successful clearance is achieved.
Do You Provide Reports for Insurance Companies?
Yes. Indoor Environmental Technologies delivers comprehensive documentation, including lab analysis results, photography, moisture readings, and official clearance certification. These reports meet insurance requirements and support claim processing.
When Should PRV Be Scheduled After Remediation?
For optimal accuracy, schedule post-remediation verification 24-48 hours after containment removal. This allows residual airborne particles from remediation to settle while ensuring timely verification before reconstruction begins.
Why Is It Important to Use an Independent Certified Mold Inspector for PRV?
Using an independent certified mold inspector ensures an unbiased assessment of remediation work. This avoids conflicts of interest and provides property owners with reliable verification that mold removal and moisture control were effectively completed, preventing recurrence and protecting indoor air quality.
Mold Testing
How Quickly Can I Get My Mold Test Results?
With our on-site lab, sample results are available within hours, enabling faster action to address mold issues.
What Types of Samples Do You Collect?
IET's team of experts collects air samples to measure airborne particles and swab samples from visible mold growth or suspect surfaces to identify specific mold species.
Can On-Site Testing Detect Hidden Mold?
Yes, by combining moisture detection tools with air and surface sampling, we uncover mold hidden behind walls, ceilings, and other concealed areas.
Do You Offer Mold Remediation Services?
Our focus is on providing precise on-site mold testing and reporting. For mold removal, we refer you to trusted certified remediation professionals and provide clearance testing to confirm successful remediation.
How Can I Prevent Mold After Testing?
Addressing moisture problems identified during inspection—such as leaks or poor ventilation—is key to preventing future mold growth. Regular monitoring and maintenance are recommended.
Commercial Mold Inspection Take?
How Long Does a Commercial Mold Inspection Take?
The duration of a commercial mold inspection varies depending on the size and complexity of the property. For small retail spaces, inspections typically take 2 to 3 hours. Larger office or industrial buildings may require a full day or multiple visits to complete. Factors influencing the length include building size, accessibility, the number of samples needed, and the extent of cavity inspections.
What Happens If Mold Is Found During Inspection?
If mold is detected, you will receive a detailed report outlining the affected areas, specific mold species identified, levels of contamination, and recommendations for remediation. Our assessments are conducted independently, with no ties to remediation companies, ensuring unbiased results. Additionally, post-remediation verification testing is available to confirm that mold removal has been successfully completed.
How Often Should Commercial Properties Be Inspected for Mold?
It is recommended that most commercial buildings undergo annual mold inspections. Properties with a history of water damage, older HVAC systems, or humidity problems should be assessed more frequently. Immediate inspections are advised following events such as flooding, leaks, detection of musty odors, or reports of occupant health complaints.
Do You Provide Post-Remediation Verification Testing?
Yes, we offer independent clearance testing to ensure that airborne mold spore levels have returned to safe ranges after remediation work. This testing supports insurance claims, helps maintain legal compliance, and ensures the safety of building occupants.
How Can Mold Growth Be Prevented in Commercial Buildings?
Preventing mold growth involves promptly repairing leaks and controlling moisture sources. Regular maintenance of HVAC systems and ensuring proper ventilation are crucial. Monitoring indoor relative humidity levels regularly and scheduling routine mold inspections can help catch potential problems early, protecting your building and occupants.
