Liquid tar for roofs stands as a viable roofing solution when waterproofing is paramount. Asphalt, a key component in many liquid tar formulations, significantly impacts the product’s flexibility and durability. Consider your roofing contractor, as their expertise determines the success of the application and longevity of the roof. Furthermore, remember that building codes frequently regulate the installation and use of liquid tar for roofs, necessitating strict adherence to local guidelines.
Image taken from the YouTube channel Jim Vincitore , from the video titled Rubber Coat #57 Roof Tar How to Tar a Roof CHEAP! .
Liquid Tar for Roofs: Finding the Right Fit for Your Home
Deciding on the right roofing material is a crucial step for any homeowner. Liquid tar for roofs, while a long-standing solution, requires careful consideration to determine if it suits your specific needs and circumstances. This article will delve into various aspects of liquid tar roofing to help you make an informed decision.
Understanding Liquid Tar Roofing
Liquid tar roofing, also known as built-up roofing (BUR) when applied in layers, is a type of roofing system that utilizes a petroleum-based product to create a waterproof barrier. Let’s explore the composition and types of liquid tar in more detail.
Composition and Properties
Liquid tar typically consists of asphalt or coal tar, combined with various modifiers and solvents. These additives adjust the viscosity, flexibility, and other performance characteristics of the material. The final product is applied as a hot liquid, which then cools and hardens to form a durable, waterproof membrane.
Key properties include:
- Water Resistance: Excellent protection against water intrusion.
- Durability: Can withstand harsh weather conditions for many years.
- Flexibility: Modified versions offer increased flexibility to accommodate building movement.
- Adhesion: Binds well to various roofing substrates.
Types of Liquid Tar
The two main types of liquid tar used in roofing are:
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Asphalt-based: Derived from petroleum, asphalt-based liquid tar is more common and generally considered more environmentally friendly than coal tar. It offers good UV resistance and is compatible with various modified bitumen systems.
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Coal Tar: Made from coal, coal tar is known for its superior waterproofing and chemical resistance. However, it contains higher levels of volatile organic compounds (VOCs) and has a stronger odor during application. Regulations surrounding its use may be stricter in some areas.
Advantages of Liquid Tar Roofing
Liquid tar roofing offers several benefits that make it an attractive option for certain buildings.
Cost-Effectiveness
Generally, liquid tar roofing is relatively inexpensive compared to other roofing materials like metal or tile. This makes it a budget-friendly choice, especially for large, flat roofs.
Durability and Longevity
When properly installed and maintained, liquid tar roofs can last for 20-30 years. The multiple layers provide redundancy and resistance to damage.
Repairability
Minor leaks and damage can often be easily repaired with additional layers of liquid tar or patching materials. This minimizes the need for costly complete roof replacements.
Disadvantages of Liquid Tar Roofing
Despite its advantages, liquid tar roofing also has some drawbacks that you should consider.
Installation Challenges
The application of liquid tar requires specialized equipment and skilled installers. The hot liquid can be dangerous to handle, and improper application can lead to leaks and premature failure.
Environmental Concerns
Both asphalt-based and coal tar-based liquid tar contain VOCs, which can contribute to air pollution. Coal tar is of particular concern due to its potential health risks.
Maintenance Requirements
Liquid tar roofs require regular inspections and maintenance to prevent cracking, blistering, and other issues. Reflective coatings may be needed to mitigate heat absorption and prolong the roof’s lifespan.
Is Liquid Tar Right for Your Home? Factors to Consider
Determining whether liquid tar roofing is suitable for your home involves evaluating several key factors:
Roof Slope
Liquid tar roofing is best suited for flat or low-sloped roofs. The material can pool and become uneven on steeper slopes.
Climate
Consider the climate in your area. Liquid tar can become brittle in extremely cold weather and soften excessively in very hot weather.
Building Use
Liquid tar is often used on commercial and industrial buildings but can also be appropriate for residential structures, especially those with flat roofs or unusual architectural designs.
Budget
Assess your budget for both installation and long-term maintenance. While the initial cost may be lower, regular maintenance is essential to maximize the lifespan of a liquid tar roof.
Local Regulations
Check local building codes and environmental regulations to ensure that liquid tar roofing is permitted in your area. Some areas may have restrictions on the use of coal tar or require specific installation practices.
Liquid Tar vs. Alternative Roofing Materials
To provide a better comparison, consider this table showcasing liquid tar vs. other common roofing materials:
| Feature | Liquid Tar (BUR) | Asphalt Shingles | Metal Roofing |
|---|---|---|---|
| Cost | Moderate | Low | High |
| Lifespan | 20-30 years | 15-25 years | 40-70 years |
| Maintenance | High | Low | Low |
| Installation | Difficult | Moderate | Difficult |
| Environmental Impact | Moderate to High | Moderate | Low |
| Slope Suitability | Low | Moderate | Moderate to High |
This table provides a general overview; specific product variations and installation quality can affect the performance and characteristics of each roofing material.
Liquid Tar Roof FAQs
Here are some frequently asked questions about liquid tar roofing to help you decide if it’s the right choice for your home.
What exactly is liquid tar for roofs?
Liquid tar is a type of roofing material applied as a liquid. It cures to form a seamless, waterproof membrane. It’s commonly used on flat or low-sloped roofs.
What are the main benefits of using liquid tar?
Key benefits include excellent waterproofing, durability, and ease of application. Liquid tar for roofs can also be applied over existing roofing materials in many cases, reducing removal costs.
How long does a liquid tar roof last?
With proper application and maintenance, a liquid tar roof can last for 15-20 years or even longer. The lifespan depends on factors like climate and the quality of the product used.
Is liquid tar environmentally friendly?
Traditional liquid tar for roofs isn’t considered very eco-friendly. However, some newer formulations incorporate recycled materials and are more environmentally conscious. Check the specific product details.
So, feeling better informed about liquid tar for roofs? Hopefully, this gave you the insights you needed. Take what you’ve learned and chat with a pro to see if it’s the right fit for your place. Good luck with your roofing adventures!