Flat roofs are common on homes, garages, and commercial buildings. They look sleek and modern, but they also need extra care to stay leak-free. One of the best ways to protect a flat roof is by using roofing tar. Roofing tar is a sticky material that seals cracks, keeps water out, and protects the roof.
If you’re wondering which roofing tar is best for your flat roof, you’re in the right place! In this blog, we’ll explain the basics, list the top options, talk about common problems, and share simple solutions.
What Is Roofing Tar?
Roofing tar is a thick, sticky material made from petroleum or coal tar. It is used to make roofing waterproof and seal rooftops. It works especially well for flat roofs because water tends to collect on them, unlike sloped roofs where water flows off easily.
Types of Roofing Tar for Flat Roofs
Not all roofing tar is the same! Here are the most common types:
- Coal Tar Pitch
- Best for: Commercial flat roofs
- Pros: Very durable, great for waterproofing
- Cons: Can be expensive, releases fumes when applied
- Asphalt-Based Tar
- Best for: Residential flat roofs
- Pros: Affordable, easy to apply
- Cons: Not as long-lasting as coal tar
- Rubberized Roofing Tar
- Best for: Repairs and sealing small cracks
- Pros: Flexible, works in extreme temperatures
- Cons: Costs more than standard tar
- Modified Bitumen
- Best for: New roofs or adding extra layers to old roofs
- Pros: Great for sealing and durability
- Cons: Requires professional installation
How to Choose the Best Roofing Tar for Your Flat Roof
Here are some key factors to consider when picking the right roofing tar:
- Budget: If you’re on a tight budget, asphalt-based tar might be the way to go.
- Climate: Rubberized tar is great for areas with extreme weather because it stays flexible.
- Roof Condition: For older roofs with cracks or leaks, rubberized or modified bitumen works best.
- DIY or Pro Help: Some types of tar are easier to apply than others. If you’re doing it yourself, pick something simple like asphalt tar.
Common Problems with Roofing Tar and How to Fix Them
Flat roofs face some unique challenges, and even the best roofing tar can run into issues. The most typical issues and their fixes are as follows:
1. Cracks or Holes in the Roof
- Problem: Over time, the roof may develop cracks or holes, leading to leaks.
- Solution: Use rubberized roofing tar to seal cracks or holes. Clean the area first and apply a thick layer of tar.
2. Ponding Water
- Problem: Flat roofs often have areas where water pools instead of draining. This can weaken the tar and cause leaks.
- Solution: Improve drainage by adding tapered insulation to redirect water or reapply tar to strengthen the waterproofing.
3. Foul Smell During Application
- Problem: Some roofing tars, especially coal tar, release strong odors during application.
- Solution: Choose a low-odor option like rubberized tar, or wear a mask and work in a well-ventilated area.
4. Peeling or Cracking Tar
- Problem: Harsh sunlight or cold temperatures can cause tar to dry out, peel, or crack.
- Solution: Apply a protective UV coating over the tar, or switch to rubberized tar that stays flexible.
5. DIY Application Mistakes
- Problem: Uneven application of tar can leave some areas vulnerable to leaks.
- Solution: Use a roofing brush or squeegee for even coverage, or hire a professional roofer for the best results.
Steps to Apply Roofing Tar on a Flat Roof
If you’re planning to fix your roof yourself, follow these simple steps:
- Clean the Roof
- Remove dirt, debris, and standing water. For the tar to adhere, the surface needs to be clean.
- Patch Large Holes
- Use a roofing patch or fabric to cover large holes before applying tar.
- Apply the Tar
- Use a brush, roller, or mop to spread the tar evenly across the roof.
- Focus on Problem Areas
- Pay extra attention to cracks, seams, and corners where leaks are likely to occur.
- Let It Dry
- Allow the tar to dry completely before exposing it to rain or foot traffic.
When to Call a Professional
While some small repairs can be done on your own, bigger jobs often require professional help. If your flat roof is in bad shape or you’re not comfortable working with roofing tar, don’t risk it! Hiring a professional roofer will save time and money in the long run.
Benefits of Using the Right Roofing Tar
Using the best roofing tar for your flat roof has many advantages:
- Stops Leaks: Keeps water out and prevents damage to your home.
- Increases Lifespan: Protects the roof from wear and tear, extending its life.
- Saves Money: Fixing problems early is cheaper than replacing the entire roof.
- Handles Weather: Protects against rain, snow, and sunlight.
Precision Roofing AZ Can Help!
Choosing the best roofing tar and applying it properly can make a big difference in how long your flat roof lasts. However, working on a roof isn’t always easy, and mistakes can lead to more problems.
At Precision Roofing AZ, we specialize in flat roof repairs and maintenance. Our team of experts uses the best materials and techniques to make sure your roof is leak-free and durable. Whether you need a quick patch or a full roof upgrade, we’ve got you covered!
Call us today or visit precisionroofingaz.com to get a free quote. Protect your roof the right way with Precision Roofing AZ!