As a professional property inspector in Ontario, I often hear condo buyers say, “It’s just a condo—what could go wrong?” Many assume that since condos are part of a larger managed building, there’s little to worry about. Unfortunately, this misconception can lead to costly surprises after move-in.

Whether you’re purchasing a high-rise unit in downtown Toronto or a townhouse-style condo in Mississauga, a professional home inspection is a crucial step in protecting your investment. Here’s why skipping an inspection could be a mistake—and how hiring the right inspector can help you understand not just the condition of your unit, but how to maintain it properly.

Common Myths About Condo Inspections

Many buyers assume a condo inspection is unnecessary due to:

Condo Fees Covering Repairs – While your fees contribute to maintaining shared areas, anything inside your unit is typically your responsibility—including HVAC systems, plumbing, and appliances.

New Construction Being Problem-Free – Even brand-new condos can have defects. Poor workmanship, faulty installations, or missing insulation are all potential issues.

The Status Certificate Providing All the Answers – While the status certificate tells you about the condo corporation’s finances, it does not address the condition of your specific unit.

Smaller Space = Fewer Problems – While a condo may have fewer systems than a house, it can still have hidden defects that cost thousands to fix.

What a Professional Condo Inspection Covers

A professional home inspection goes beyond just spotting issues—it helps you understand your new home. A certified inspector will check key areas, including:

1. Plumbing & Water Damage

Leaks under sinks, slow drains, and aging pipes can be costly problems if left unaddressed. Inspectors use moisture meters and thermal imaging to detect hidden water damage.

2. Electrical System & Safety Concerns

From overloaded circuits to improper DIY modifications, electrical issues can pose serious risks. An inspector ensures everything is up to Ontario’s electrical safety standards.

3. HVAC Systems (Heating & Cooling)

Many condos have individual heating and cooling units that owners must maintain. A good inspector will test your system, explain how it works, and discuss proper maintenance to extend its lifespan.

4. Windows, Doors & Ventilation

Drafty windows, poor insulation, and ventilation problems can lead to high energy bills and even mold growth. Your inspector will assess these elements and provide maintenance tips.

5. Appliances & Fixtures

Even new appliances can have defects or improper installations. A thorough inspection ensures everything is working correctly before you move in.

6. Signs of Structural Issues in the Building

Although the condo building itself is managed by the condo corporation, your inspector can spot red flags such as cracks, sloping floors, or improper repairs that could indicate larger structural concerns.

Beyond the Inspection: Learning About Your Condo’s Systems

One of the biggest benefits of working with a professional home inspection company isn’t just uncovering problems—it’s the education you receive about your new condo. Many first-time condo buyers aren’t familiar with how their unit’s systems work, including:

How to properly maintain your HVAC system – Regular filter changes and seasonal maintenance can extend the life of your heating and cooling system.

How to check and seal windows and doors – Preventing drafts and leaks saves energy costs and protects against water damage.

How to detect early plumbing issues – Learning the warning signs of slow leaks and clogged drains can prevent major damage.

Understanding your electrical panel – Knowing which breakers control which areas and when to call an electrician is essential for safety.

A good inspector doesn’t just point out issues—they take the time to explain how to care for and maintain your condo properly. This knowledge can help you avoid costly repairs and keep your unit in great condition for years to come.

Why Choosing the Right Inspector Matters

Not all home inspectors are created equal. When hiring a professional, look for someone who is:

Certified & Experienced – Ensure they are a licensed home inspector in Ontario and have experience with condo inspections.

Using Advanced Tools – Infrared cameras, moisture meters, and electrical testers help detect hidden problems that a visual inspection alone might miss.

Focused on Education – A great inspector takes time to explain how your condo’s systems work and what maintenance steps you should take.

Providing a Detailed Report – A clear, written report with photos and recommendations helps you make informed decisions about your purchase.

Final Thoughts: Protect Your Investment with a Condo Inspection

As a licensed home inspector in Ontario, my advice is simple: don’t assume everything is perfect just because it’s a condo. A professional inspection helps uncover hidden issues and educates you on how to properly maintain your new home.

For a small upfront cost—typically $300 to $400—you can avoid thousands in unexpected repairs and gain valuable knowledge about your condo’s systems. Whether you’re a first-time buyer or a seasoned investor, taking this extra step ensures you move in with confidence.

Thinking of Buying a Condo in Ontario?

Book a professional condo inspection today to make sure your new home is safe, functional, and problem-free!

The post Why Every Condo Buyer in Ontario Needs a Home Inspection appeared first on Inspection Services Group.

If you’ve ever noticed large icicles hanging from the edges of your roof, you might think they’re just a normal part of winter. However, those icicles could be a sign of a bigger issue—ice damming. Ice dams are ridges of ice that form at the edge of a roof, preventing melting snow from draining properly. This trapped water can seep under shingles and cause significant damage to your home.

How Do Ice Dams Form?

Ice dams are the result of a combination of snow accumulation, heat loss from the home, and fluctuating temperatures. Here’s how it happens:

1. Heat Escapes from the Attic: Poor insulation and ventilation allow heat to escape from the living spaces into the attic, warming the roof.
2. Snow Melts and Refreezes: The heat causes the snow on the upper portion of the roof to melt. As the water runs down to the colder eaves, it refreezes, forming a dam.
3. Water Backs Up: With the ice dam in place, additional melting snow has nowhere to go and begins to pool behind the dam. Over time, this water can penetrate roofing materials, leading to leaks and damage inside the home.

Why Are Icicles a Warning Sign?

Icicles hanging from your gutters or roof edges often indicate ice damming is occurring. While small icicles may be harmless, large, heavy ones signal that melting snow is unable to drain properly. Left unchecked, ice dams can lead to:

• Roof leaks and water damage inside ceilings and walls
• Mold growth from trapped moisture
• Structural damage to roofing materials and gutters
• Safety hazards from falling icicles

How to Prevent Ice Damming

Preventing ice dams requires controlling attic temperatures and ensuring proper drainage. Here’s what you can do:

1. Improve Attic Insulation: Proper insulation prevents warm air from escaping, keeping your roof cooler and reducing snowmelt.
2. Enhance Roof Ventilation: Ridge and soffit vents help regulate attic temperatures and prevent uneven melting.
3. Seal Air Leaks: Gaps around recessed lights, chimneys, and attic hatches should be sealed to reduce heat loss.
4. Use a Roof Rake to Remove Snow: Clearing excess snow from your roof minimizes the risk of ice dam formation.
5. Install Heated Roof Cables: Electric heat cables along the eaves can help melt ice dams before they become a problem.

What to Do If You Already Have Ice Dams

If you notice ice dams forming, avoid chipping away at them, as this can damage your roof. Instead, try these solutions:

• Use Calcium Chloride Ice Melt to break down the ice safely (avoid rock salt, which can harm roofing materials).
• Create Drainage Channels by filling old socks with ice melt and laying them across the dam to encourage melting.
• Call a Professional Roof Inspector if water damage is present—home inspectors and roofing specialists can assess and address the issue.

The Bottom Line

Icicles hanging from your roof may look picturesque, but they often signal a serious issue. Ice dams can lead to costly repairs if ignored, so taking preventive measures now can save you headaches (and money) later.

Protect your home this winter—schedule a professional ice dam inspection today!

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Here are the main instances where WETT inspections are essential:

1. For Home Safety

Safety should always come first when using wood-burning appliances. A WETT inspection assesses whether the appliance and chimney meet current building codes and manufacturer specifications. This helps identify risks like chimney blockages, improper installations, or wear and tear that could lead to fire hazards or carbon monoxide leaks.

2. For Insurance Requirements

Many insurance providers require a WETT inspection report before issuing or renewing policies for homes with wood-burning appliances. This is especially important for homeowners who are purchasing a new property, upgrading their heating systems, or renewing an existing policy. A professional inspection ensures compliance with insurance standards, avoiding potential coverage issues.

3. When Buying or Selling a Home

If you’re buying or selling a property with a wood-burning fireplace or stove, a WETT inspection can be a valuable part of the transaction. For buyers, it provides peace of mind that the system is safe and compliant. For sellers, it can add value and reassure potential buyers about the condition of the home’s heating system.

4. After Installation of a New Appliance

Whenever a new wood-burning appliance is installed, a WETT inspection ensures it has been installed properly and in compliance with regulations. This is critical to avoid potential issues down the road and to maintain the system’s warranty.

5. If the Appliance Hasn’t Been Used in a While

If you’ve recently moved into a home with an existing wood-burning fireplace or if your appliance hasn’t been used for a long time, a WETT inspection is a smart choice. It ensures the system is safe to operate, even after years of dormancy.

6. For Routine Maintenance

Even if everything seems to be working fine, regular inspections are a good idea. Over time, creosote buildup, chimney wear, and other issues can develop that may not be visible to the untrained eye. A WETT inspection can catch these problems early, keeping your system in top condition.

What Does a WETT Inspection Involve?

A WETT inspection examines the wood-burning appliance, chimney, and surrounding areas as a complete system. It ensures that the appliance complies with regulations, is installed correctly, and operates safely. While many people refer to a “WETT certificate,” it’s important to note that what’s provided is a detailed inspection report, not a certificate.

Why It Matters

Whether you’re a homeowner, buyer, seller, or installer, a WETT inspection is a small but crucial step to ensure safety, compliance, and peace of mind. Don’t take chances with something as important as fire safety—make sure your wood-burning system is inspected by a certified professional.

If you’d like to learn more about WETT inspections or schedule one, feel free to contact us or visit our online booking platform.

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Why a Home Inspection Matters

A home inspection is an essential step in the homebuying process, especially for single moms. It’s an opportunity to uncover hidden problems that could cost thousands of dollars in repairs and pose potential health risks. Pay now for a home inspection, or pay later for costly repairs and potential health issues.

The Hidden Costs of Neglect

All too often, we see single moms feeling pressured to make quick decisions, particularly when it comes to finding a home that meets their children’s needs. However, rushing into a purchase without a thorough home inspection can lead to serious consequences, both financially and health-wise. Imagine the disappointment and frustration of moving into your dream home, only to discover serious issues like:

• Mold: A silent threat that can lead to respiratory problems, allergies, and other health issues.
• Faulty Wiring: A potential fire hazard that could endanger your family’s safety.
• Plumbing Problems: Leaky pipes, clogged drains, and sewer backups can cause water damage and mold growth.
• Structural Issues: Foundation cracks, roof leaks, and other structural problems can compromise the home’s integrity and safety.

These issues can be costly to repair and may require extensive renovations. By neglecting a home inspection, you’re risking your family’s health, safety, and financial stability.

Protect Your Family’s Future

A home inspection is a wise investment that can help you:

• Identify Potential Problems: A qualified inspector will thoroughly examine the property and identify any issues that need to be addressed.
• Negotiate a Fair Price: Armed with a detailed inspection report, you can negotiate a fair price with the seller or request necessary repairs.
• Avoid Costly Repairs: By addressing issues early on, you can prevent costly repairs and protect your investment.
• Ensure a Safe and Healthy Home: A well-maintained home provides a safe and healthy environment for you and your children.

Partner with a Reliable Home Inspection Company

When choosing a home inspection company, look for one that:

• Is Certified and Insured: Ensure that the company and its inspectors are licensed and insured to protect your interests.
• Offers Comprehensive Inspections: The inspection should cover all major systems, including electrical, plumbing, heating, cooling, and structural components.
• Provides Clear and Detailed Reports: The inspector should provide a detailed written report outlining any issues found, along with photos and recommendations for repairs.
• Offers Excellent Customer Service: A reputable company will be responsive to your questions and concerns and will provide timely service.  Always check reviews!

By investing in a home inspection, you’re not just protecting your investment; you’re safeguarding your family’s future. Don’t let a seemingly small decision jeopardize your peace of mind and financial stability. Pay now for a home inspection, or pay later for costly repairs and potential health issues.

Preparation Tips for Single Moms

• Set a Budget: Determine how much you can afford, including the costs of the home inspection and potential repairs.
• Get Pre-Approved for a Mortgage: This will give you a clear idea of your price range and make you a more attractive buyer.
• Research Neighborhoods: Look for areas with good schools, daycare facilities, parks, and other amenities important for your family.
• Make a Checklist: List your must-haves and nice-to-haves in a home to stay focused during your search.
• Seek Support: Don’t hesitate to ask for help from friends, family, or a real estate agent to make informed decisions.
• Stay Organized: Keep all your documents, schedules, and contacts in one place to streamline the process.

By following these tips and prioritizing a home inspection, you can navigate the homebuying process with confidence and peace of mind, that you’re keeping your family safe. Happy house hunting!

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In regions like Ontario, where heavy rainfall and snowmelt are common, effective water management around the perimeter of your home is essential to prevent water penetration into the basement. Let’s explore why exterior grading and water control are paramount for safeguarding your basement against moisture intrusion.

Understanding Exterior Grading and Water Control:

1. Preventing Water Intrusion: Exterior grading refers to the slope or angle of the ground surrounding your home’s foundation. Ideally, the ground should slope away from the foundation, directing rainwater and melting snow away from the house. Proper grading ensures that water flows naturally away from the foundation, reducing the risk of pooling or seepage into the basement.
2. Foundation Protection: When water collects near the foundation due to improper grading, it can exert hydrostatic pressure on the foundation walls. Over time, this pressure can lead to cracks, leaks, and even structural damage. By maintaining proper exterior grading, you not only keep water away from the basement but also protect the integrity of your home’s foundation.
3. Importance of Gutters and Downspouts: Effective water control goes hand in hand with proper gutter and downspout maintenance. Gutters collect rainwater running off the roof and channel it away from the house. However, if gutters are clogged or damaged, water can overflow and cascade down the exterior walls, saturating the soil around the foundation. Installing downspouts with extensions to direct water at least 6 feet away from the foundation further enhances water control and prevents basement flooding.
4. Foundation Waterproofing: While exterior grading and water control are vital preventive measures, they complement foundation waterproofing solutions. Interior waterproofing methods, such as installing a sump pump and applying sealants to basement walls, can provide an additional layer of defence against moisture intrusion. Exterior waterproofing has been required in Ontario since the early 2000s. Waterproofing in older homes is minimal to non-existent. Where possible, waterproofing the foundation should be considered.  However, without proper exterior grading and water control, these measures may be less effective in the long run.

Benefits of Proper Exterior Grading and Water Control:

1. Prevents Costly Water Damage: Water infiltration in the basement can lead to costly repairs, including mold remediation, foundation repairs, and damaged belongings. Investing in proper exterior grading and water control is a proactive measure to avoid these expenses and preserve the value of your home.
2. Promotes Health and Safety: Damp basements create an ideal environment for mold growth, which can compromise indoor air quality and pose health risks to occupants. By keeping the basement dry through effective water management, you promote a healthier living environment for your family.
3. Enhances Property Resilience: A home with well-maintained exterior grading and water control systems is more resilient to weather-related challenges. Whether facing heavy rainfall or snowmelt, you can have confidence that your basement is protected against water intrusion, ensuring peace of mind year-round.

Conclusion

Exterior grading and water control are fundamental aspects of basement waterproofing that every homeowner should prioritize. By maintaining proper grading, ensuring functional gutters and downspouts, and implementing effective water management strategies, you can safeguard your basement against moisture infiltration and its associated consequences. Investing in these preventive measures not only protects your home but also contributes to a safer, healthier living environment for you and your family.

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Importance of Smoke Alarms and Carbon Monoxide Alarms:

1. Early Detection Saves Lives: Smoke alarms are our first line of defence against fires, promptly detecting the presence of smoke and issuing a warning to evacuate. Similarly, carbon monoxide alarms monitor the presence of this odourless, colourless gas, which can be lethal in high concentrations. Early detection allows residents to take swift action, potentially preventing injuries or fatalities.
2. Peace of Mind: Knowing that smoke alarms and carbon monoxide alarms are operational provides invaluable peace of mind for homeowners and tenants alike. These alarms serve as constant sentinels, silently standing guard against invisible threats, and offering reassurance even in the dead of night.
3. Legal Mandates in Ontario: In Ontario, the importance of these safety devices is enshrined in law. The Ontario Fire Code (OFC) mandates the installation of smoke alarms on every storey of a home and outside all sleeping areas. Additionally, carbon monoxide alarms are required adjacent to all sleeping areas if the home has a fuel-burning appliance or an attached garage, ensuring comprehensive protection against both fire and carbon monoxide poisoning.
4. Regular Maintenance and Testing: While the installation of alarms is a crucial first step, ensuring their effectiveness requires regular maintenance. Ontario law stipulates that homeowners are responsible for the maintenance and testing of these devices. This includes monthly testing to ensure proper functionality, as well as replacing batteries at least once a year or when the low battery warning sounds. Moreover, both smoke alarms and carbon monoxide alarms have expiration dates, typically around 7-10 years from the date of manufacture. It’s essential to replace these devices when they reach their expiration to guarantee continued safety.

Conclusion

Smoke alarms and carbon monoxide alarms are not mere accessories but indispensable safeguards for every Ontario home. Beyond fulfilling legal requirements, these devices offer a shield against the devastating consequences of fires and carbon monoxide exposure. By understanding their importance, adhering to legal mandates, and maintaining these alarms diligently, homeowners can create safer living environments for themselves and their families.

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In the 1970s, stucco ceilings, also known as popcorn ceilings or acoustic ceilings, were a popular choice for many homes and commercial spaces. This textured ceiling finish was not only fashionable but also provided acoustic benefits by reducing noise levels. However, what was once a trendy design element now poses a potential health hazard. Many stucco ceilings from that era contain asbestos, a harmful mineral fiber that can lead to serious health issues if released into the air. In this blog, we will explore the importance of testing for asbestos in 1970s stucco ceilings and discuss safe removal options.

Understanding Asbestos

Asbestos is a naturally occurring mineral that was commonly used in construction materials until its harmful effects became widely known. The mineral’s fibrous nature makes it resistant to heat, fire, and chemicals, which made it a popular choice in various building applications. However, prolonged exposure to asbestos fibers can lead to severe health conditions, including lung cancer, asbestosis, and mesothelioma.

The risk in 1970s stucco ceilings

Stucco ceilings installed during the 1970s are known to contain asbestos. The textured appearance of these ceilings was achieved by mixing asbestos fibers with the stucco material. When the ceiling remains undisturbed, the asbestos fibers are typically contained within the stucco matrix. However, over time, the ceiling may deteriorate or get damaged, releasing these dangerous fibers into the air where they can be inhaled.

The importance of Testing

If your home or property was built during the 1970s and features a stucco ceiling, it is crucial to determine whether it contains asbestos. Testing the ceiling for asbestos is the only way to know for sure. Professional asbestos inspectors can collect samples and send them to certified laboratories for analysis. They will perform a thorough examination, identifying the presence and concentration of asbestos fibers in the stucco ceiling.

Safe asbestos removal

 If the test confirms the presence of asbestos in your stucco ceiling, it is highly recommended to proceed with safe removal. While it is technically possible for homeowners to remove asbestos-containing materials themselves, it is a complex and hazardous process that should be left to professionals. Certified asbestos abatement contractors have the necessary expertise, equipment, and safety protocols to ensure the safe removal and disposal of asbestos materials. Type 2 and type 3 Abatement is regulated by law in the Province of Ontario.

The process of asbestos removal typically involves the following steps:

1. Containment: The work area is carefully sealed off to prevent the spread of asbestos fibers to other parts of the property.
2. Personal Protective Equipment (PPE): Workers wear appropriate PPE, including respirators, disposable coveralls, and gloves, to protect themselves from exposure.
3. Wetting: The stucco ceiling is thoroughly wetted to minimize the release of asbestos fibers during removal.
4. Careful Removal: The stucco ceiling is carefully scraped off or removed in sections, minimizing dust generation.
5. Cleanup: The work area is meticulously cleaned using specialized vacuum cleaners designed to capture asbestos fibers.
6. Disposal: All asbestos-containing materials are properly sealed and disposed of at authorized waste disposal facilities.

Conclusion

If your property features a stucco ceiling installed during the 1970s, it is crucial to have it tested for asbestos. The health risks associated with asbestos exposure make it imperative to approach the situation with caution. If asbestos is detected, hiring a professional asbestos abatement contractor is highly recommended for safe removal. By taking the necessary steps, you can ensure the protection of yourself, your loved ones, and anyone else who occupies the space, creating a safer living or working environment for all.

FAQs

1.  When did Asbestos stop being used in construction?  Asbestos was used extensively in residential construction until the late 1970’s and early 1980’s. It was used in commercial construction until the late 1990’s at which time its use was regulated by the government.

2.  I am only installing pot lights on a stucco ceiling. Do I still need to test for asbestos? To install pot lights, holes have to be drilled on the ceiling therefore the stucco gets disturbed and becomes airborne. Testing is highly recommended.

3.  Can any contractor remove asbestos material? No, asbestos abatement requires training and certification. Specific protocols have to be followed during the abatement.

4.  Can I throw away asbestos-containing material in the garbage? No, asbestos-containing material can only be disposed at a specific government run dump site.

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Understanding Asbestos and Its Risks

Asbestos is a naturally occurring mineral that was extensively used in construction materials, such as insulation, flooring, and ceiling tiles, until the late 20th century. Its popularity was primarily due to its fire resistance, durability, and insulating properties. Unfortunately, it was later discovered that asbestos fibers, when released into the air and inhaled, can cause severe health issues, including lung cancer, mesothelioma, and asbestosis.

Asbestos and Renovations

During renovations or any activities that involve drilling, cutting, or demolishing materials, there is a significant risk of disturbing asbestos-containing materials. When these materials are damaged or broken, microscopic asbestos fibers can be released into the air, making them easily inhalable. It is crucial to note that asbestos-containing materials do not pose an immediate threat if they are intact and undisturbed. However, once they are disturbed, the health risks escalate.

The Importance of Asbestos Testing

Given the potential dangers associated with asbestos, it is crucial to determine whether your older home contains this hazardous material before commencing any renovation work. Asbestos testing involves taking samples of suspect materials and sending them to a certified laboratory for analysis. Trained professionals collect these samples following strict safety protocols to prevent fiber release during the sampling process.

By conducting thorough asbestos testing, you can identify the presence of asbestos-containing materials in your home. This knowledge allows you to make informed decisions about how to handle these materials during your renovation project. It is important to remember that visual inspection alone cannot confirm the presence of asbestos, as it is often impossible to identify asbestos-containing materials without specialized testing.

The Role of Professional Abatement

If asbestos is detected during testing, it is essential to engage the services of a professional asbestos abatement company. Attempting to remove or handle asbestos-containing materials yourself can lead to fiber release and put your health, as well as the health of others, at risk. Professional asbestos abatement companies have the expertise, specialized equipment, and knowledge to safely remove and dispose of asbestos materials in accordance with government regulations.

During the abatement process, professionals will implement containment measures to isolate the work area, ensuring that asbestos fibers do not spread throughout the property. They will use appropriate personal protective equipment, follow strict procedures, and conduct air monitoring to ensure the effective removal of asbestos fibers. After completion, they will provide documentation certifying that the asbestos has been safely and thoroughly removed.

Conclusion

When embarking on renovations in an older home or property, asbestos testing is an essential step to safeguard the health and well-being of yourself and those around you. Remember, asbestos is not dangerous unless it is disrupted, but when it is, it can pose significant health risks. By hiring a professional asbestos abatement company to handle any identified asbestos-containing materials, you can ensure the safe and successful completion of your renovation project while protecting yourself and your loved ones from the potential dangers of asbestos exposure.

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The effectiveness of any one radon-reduction method will depend upon the unique characteristics of your home, the level of radon, how it is getting into your house, and how thoroughly the job is done. A single method may do the job, but sometimes a combination of several methods must be used.

Homes are generally categorized according to their foundation design: basement, slab-on-grade, or crawlspace. Some homes have more than one foundation design feature: a basement under one part of the home and a slab-on-grade or crawlspace in another area. In these situations a combination of radon-reduction techniques may be needed to reduce radon levels to below the Canadian guideline.

A certified radon professional will likely perform one or more diagnostic tests to help determine the best radon-reduction system for your home. For example, your contractor may use chemical smoke to see the air flow sources and radon entry points by watching a small amount of smoke that has been placed into holes, drains, sumps or along cracks. Another type of diagnostic test is a Pressure Field Extension Test (or communication test). This test uses a vacuum cleaner (e.g., a Shopvac) to measure how easily air can move from one point to another under the foundation and estimate the number of suction points and fan size needed for an active radon-reduction system.

Sub-slab depressurization (also called active soil depressurization) is the most effective and reliable radon reduction technique. It is also the most common method used by C-NRPP certified professionals. This method involves installing a pipe through the foundation floor slab and attaching a fan that runs continuously to draw the radon gas from below the home and release it into the outdoors where it is quickly diluted. This system also reverses the air pressure difference between the house and soil, reducing the amount of radon that is drawn into the home through the foundation. One, or sometimes multiple, suction points are inserted through the floor slab into the crushed rock or soil underneath to effectively reduce the radon level in the home.

The sub-slab depressurization pipe can be vented at either the roof level or ground level of the home. The fan can be placed in the basement or an area outside of the living space such as in a garage or attic. If the fan is placed inside the living space of the home, it is usually vented sideways through the rim joist at ground level, with the fan close to the exhaust location. When the fan is placed outside of the living space (e.g. attic or garage) then it is typically vented upwards above the roof.

Are you concerned about Radon in your home? Learn more about Radon or get in touch with us to see how we can help.

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Conditioned vs Ventilated

Most people think of a crawlspace as a dark, wet and scary place like in the movies.  This is often the case when crawlspaces are constructed incorrectly.  When designing a crawlspace there are often two basic trains of thought.  You can ventilate or condition the space.  Conditioning refers to controlling the temperature and thus controlling the moisture.  Careful considerations must also be taken about the climate where you are living as vented crawlspaces in arid climates tend to fare well all year long. This can also be true for regions where summers are hot and dry even if winters are cold and damp.  

When a crawlspace is considered a conditioned portion of the home it is treated as part of the home by using the HVAC system to acclimatize and ventilation is not required.  Insulating the foundation walls will provide an enhanced level of efficiency, especially in colder climates.  Insulating the foundation wall was not required in the past, therefore we see a lot of older crawlspaces that do not have any insulation. Now it is required, just like a basement.

 When a crawlspace is not conditioned, a few key construction techniques must be followed.  It must be properly ventilated to allow moisture to dry. A vapour barrier must also be installed to prevent the evaporation of moisture from the soil.  In this scenario, the best practice for insulation is to insulate the floor joist cavities but at the same time ensure that the crawlspace is vented in order to alleviate any potential for moisture problems.  Think of it this way, the crawlspace should be made part of the house or treated like an exterior portion of the house.  

Signs Of Problems

1.  Visible moisture on foundation walls or standing water is a recipe for disaster in a crawlspace and will only contribute to more problems.  Water in the crawlspace indicates moisture intrusion from the exterior.
2. Efflorescence can be seen on painted and non-painted walls in the crawl space. Salt deposits left behind after a wet wall dries are known as efflorescence. If you see efflorescence, it is a sign of past or current foundation water intrusion.
3. If you can see condensation, you can be sure the humidity level is high. Condensation can form on metal ducts, HVAC refrigerant lines, plumbing, and even the wood itself. Subfloor insulation can also trap water and show signs of condensation. All of these issues can lead to major mould problems.
4. Mould and wood rot and fungus are huge warning signs that a major water problem is present. By the time you see mould, wood rot and fungus, you may have to replace wood joists. Mould can be caused by high humidity, dew point issues, or leaks from the living space or plumbing in the crawl space.
5. Pests are another sign of problems.  Most insects seek out areas of high moisture areas. In some regions, there may be wood-destroying organisms, rodents or snakes.

Structural Considerations

Like any other foundation, a crawlspace must provide adequate support for the home.  This means the same considerations must be taken regardless of accessibility.  In many cases, this is not the case and the home is resting on concrete blocks or poorly supported with DIY materials over time.  If the home is not properly supported on a block or poured foundation then it should be supported on masonry piers or steel posts with a proper concrete footing.

Radon Gas

Radon is not as big a concern in a ventilated crawlspace. Radon and other soil gases need to be addressed in conditioned crawlspaces just as they need to be addressed in basements. The best approach is the typical sub-slab depressurization (see our radon article).

FAQs

1. Is there supposed to be soil on the crawlspace floor? No, but consider that building practices have changed in the last 100 years. Crawlspaces used to be left without a concrete slab or a vapour barrier up to the mid-1900s. Modern building science tells us that a crawlspace floor should have a vapour barrier to prevent the evaporation of moisture.
2. Are the ducts supposed to be insulated in the crawlspace? No, they do not if your crawlspace is a conditioned area that is fully insulated at the perimeter.
3. Do the water pipes need to be insulated in the crawlspace? No, they do not if your crawlspace is a conditioned area that is fully insulated at the perimeter.
4. Should I be doing pest and insect control in my crawlspace? Absolutely. Every home needs pest control.
5. Is a sump pump required in a crawlspace? Not necessarily. It depends on how the exterior drainage system is designed.
6. What type of insulation should be used in a crawlspace? All types of insulation are good, as long as they have a high R-Value and are installed properly.
7. Is mould a problem in the crawlspace if it is unconditioned and ventilated? Mould is a problem anywhere in a home.

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