Knob and Tube Wiring: Insurance, Risks, and Upgrades

What Is Knob And Tube Wiring?

Knob and tube electrical wiring is an older electrical system commonly found in some Canadian homes, particularly those built between the late 1800s and early 1900s. This wiring method uses porcelain insulating knobs and tubes to run electrical wires through walls, ceilings, and floors. 

The system separates the hot and neutral wires, reducing the risk of short circuits. In this method, rubber cloth fabric insulates the cables.  

In Canada, no building code suggests this type of electrical wiring is illegal. However, people consider it a hazard and cannot use it in upcoming constructions.

Today, getting insurance quotes for almost everything is paramount, and many people are concerned about whether they can get their home insured if they have knob-in tube wiring.

Hence, keep on reading to get more information about the insurability, inner workings, and issues of this wiring.

Drawbacks of Knob and Tube Wiring

Safety Concerns: Unlike newer wiring systems, it does not have "grounding," which helps divert extra electrical power if something goes wrong. Without grounding, there is a higher chance of getting shocked, especially in damp places.

Insulation Deterioration: The protection around the knob and tube wiring can get worn down as time passes. It happens because of different things like the weather, changes in temperature, and dirt building up.

When this protection breaks down, the wires become more likely to get damaged, which is dangerous. If cracks or openings exist, the cables might touch things that can catch fire.

Identifying when this covering worsens is challenging because the wires are usually behind walls and ceilings. 

Overloading Issues: Knob and tube electrical wiring was made a long time ago when people did not have a lot of electronic devices as we do now. Our homes have many more gadgets and appliances that need electricity, and this type of wiring cannot handle all this extra power well.

If you try to use it for modern devices, the system might get overwhelmed and overheat, possibly leading to fires. So, using knob and tube wiring for all the electrical needs of a modern home is a considerable risk. 

Incompatibility with Modern Appliances: Nowadays, we have many new and advanced gadgets and machines in our homes. These devices need a lot of electricity to work correctly.

Unfortunately, knob and tube electrical wiring, an older type, was not made to handle the high electrical needs of these modern gadgets. The wiring cannot give enough power to air conditioners, microwaves, and big TVs.

If we try to connect these things to knob and tube wiring, it can cause problems like changes in electricity and too much electricity going through, which might harm the gadgets and the wiring itself. 

Limited Accessibility: Another big problem with knob and tube electrical wiring is that it is hard to get to for fixing or changing things.

The wires are often hidden inside walls, ceilings, and attics, which makes it challenging for electricians to reach them when they need to check or fix something. We might need to change the structure of the building a lot to work on the wiring.

Code Violations: Knob and tube wiring do not follow the rules of modern electrical codes, which are like safety guidelines to ensure homes are safe and electricity works well.

Because of this, it is not allowed in new construction or renovations according to building codes. If someone wants to change their house, they might need to replace the old knob and tube wiring with a new system that follows the rules.

It can cost more money and be complicated, as it might need a lot of rewiring and changes to the house's electrical setup.

How to Keep Your Home Safe with Knobs and Tube Wiring?

Inspection: You should keep getting regular reviews of this particular wiring system by any qualified electrician. They can check the condition of the wiring, any issues, and safety levels.

Load Management: Refrain from overloading the circuits with heavy appliances at once. 

Upgrades: You can replace traditional outlets with Ground Fault Circuit Interrupter (GFCI) outlets. GFCIs provide an extra layer of protection by quickly detecting imbalances in electrical currents and shutting off power to the outlet if a fault is detected.

Replace Damages: Regularly inspect your knob and tube wiring for signs of wear, cracking, or brittleness. If you identify any damaged wiring, replace it promptly.

Avoid High-Risk Areas: You should avoid using knob and tube electrical wiring in areas with high moisture, such as kitchens, bathrooms, or even laundry rooms. 

Remove Insulation: Ensure insulation is not in direct contact with knob and tube wiring if insulation surrounds the wiring.

Can You Be Insured With Knob and Tube Wiring?

Due to its safety risks and limitations, obtaining home insurance quotes for a home with knob and tube wiring can be challenging. Many home insurance companies are hesitant to provide coverage for homes with K&T wiring due to the increased risk of fire and other safety hazards.

While some insurers may still offer coverage for homes with knob and tube electrical wiring, there are usually strict requirements and conditions to follow before a policy is issued or renewed. Some of these conditions may include:

1. Inspection by a Licensed Electrician: Some insurers might require a qualified electrician to inspect the knob and tube wiring and certify that it is safe. They also need to confirm if it complies with the codes. If the electrician qualifies the system as safe, the insurer may consider offering coverage.

2. Higher Premiums: Even if coverage insurance companies provide insurance, the insurance premiums for a home with knob and tube electrical wiring are likely much higher due to the increased risk associated with this type.

3. Specialty Insurers: Sometimes, homeowners might need coverage from specialty insurers specializing in high-risk properties or unique situations, such as homes with knob and tube wiring.

4. Safety Measures: Homeowners may need additional safety measures, such as replacing cracked or brittle wiring, removing insulation surrounding wires, and avoiding running excessive appliances or electronics simultaneously.

5. Limited Coverage Areas: Knob and tube wiring is generally considered unsafe for some home regions, such as kitchens, bathrooms, laundry rooms, and outdoors. Home insurance providers might be more satisfied if the homeowner does not use knob and tube electrical wiring in these high-risk areas.

It is important to note that home insurance policies can be different based on the areas and preferences. So, the availability of coverage for homes with knob and tube wiring will depend on the specific insurance provider, local regulations, and the condition of the wiring.

Homeowners with knob and tube electrical wiring should consult insurance experts, licensed electricians, and insurance companies to understand their options.

You can search for them online simply by typing "electrical companies near me" or "electrical contractors near me."

Sometimes, the best action may be to consider rewiring the home to modern electrical standards to ensure safety and insurability.

Advantages of Rewiring

Here are some of the critical advantages of upgrading your electrical system:

Enhanced Safety:  Knob and tube electrical wiring is outdated and can cause serious fire hazards due to insulation weakening, fragile wiring, and lack of grounding. Upgrading modern wiring systems reduces the risk of electrical fires and other safety-related incidents.

Compliance with Modern Standards: Electrical codes and safety standards change rapidly, and it has evolved significantly since the knob and tube wiring era. By rewiring your home, you bring your electrical system up to current code requirements, ensuring that your home meets modern safety standards.

Insurance Coverage: Many home insurance companies are reluctant to provide quotes for homes with knob and tube electrical wiring due to the associated risks. Upgrading to modern wiring makes your home more attractive to insurers, potentially leading to more accessible and affordable insurance coverage.

Increased Home Value: Upgrading your home's electrical system and improving its safety can enhance its overall value. Buyers often prioritize homes with updated electrical systems, as they offer increased security and fewer maintenance concerns.

Flexible Usage and Convenience: Modern electrical systems can handle the electrical demands of today's technology and appliances. Rewiring allows you to safely use a broader range of electronic devices and appliances and automate your home without overloading the circuits.

Reduced Maintenance Costs: Knob and tube electrical wiring is more prone to wear and tear over time, leading to potential maintenance and repair costs. Modern wiring systems are durable and do last longer, reducing the need for frequent repairs.

Energy Efficiency: Modern wiring systems allow people to use modern electronics which are energy efficient. It can help minimize energy consumption and lower your utility bills.

Accommodating Renovations: If you plan to renovate or expand your home, rewiring allows you to add new electrical components seamlessly. It ensures your electrical system can support the additional load of new rooms, outlets, lighting, and other features.

Ease of Troubleshooting: Modern wiring systems come with clear labeling and organized layouts, making it easier for electricians to diagnose and solve issues when they arise.

Conclusion

Whether you are considering insurance coverage or evaluating safety concerns, we hope this article has equipped you with valuable knowledge. Your home's well-being and security are of utmost importance, and we trust that the information shared here will guide you toward informed decisions. 

Arthur Kavanagh