Maintaining a watertight roof often hinges on selecting the right materials. Roof leaks, a common headache for homeowners, can frequently be addressed with the appropriate sealant. Roofers Choice plastic roof cement is one such solution, known for its flexibility and bonding capabilities. Proper application, as guided by the manufacturer Gardner Coating, is critical to its effectiveness. Understanding the characteristics of asphalt roofing and how it interacts with the cement is crucial for successful repairs. This guide provides the knowledge to choose correctly, ensuring you minimize potential and expensive issues.

Image taken from the YouTube channel Jim Vincitore , from the video titled How To Tar a Small Roof With Roofers Choice Plastic Roof Cement, Rubr UPDATE .
Roofers Choice Plastic Roof Cement: Pick Right & Avoid Costly Mistakes
Choosing the correct "roofers choice plastic roof cement" is critical for effective roof repairs and preventing future problems. This guide will walk you through the different types, how to select the right one for your needs, and common mistakes to avoid. Understanding these aspects will help you save money and extend the lifespan of your roof.
Understanding Roofers Choice Plastic Roof Cement
Roofers choice plastic roof cement, also known simply as roof cement, is a versatile sealant and adhesive used in various roofing applications. Its primary function is to create a watertight seal and bond roofing materials together.
What is it Made Of?
The core components generally include:
- Asphalt: Provides the primary binding and waterproofing properties.
- Mineral Fillers: Add bulk, improve consistency, and reduce shrinkage.
- Solvents: Keep the cement pliable and easy to apply. These evaporate after application.
- Fibers (sometimes): Enhance strength and prevent cracking, especially in colder climates.
Common Uses
Plastic roof cement is widely used for:
- Sealing Flashing: Around chimneys, vents, and skylights.
- Repairing Leaks: Filling cracks and patching small holes in roofing materials.
- Securing Loose Shingles: Bonding shingles back to the roof deck.
- Waterproofing: Creating a barrier against water intrusion.
Types of Roofers Choice Plastic Roof Cement
The market offers several variations of plastic roof cement, each formulated for specific applications and weather conditions. Understanding these differences is crucial for selecting the correct product.
Asphalt-Based Cements
The most common type, suitable for general roofing repairs.
- Advantages: Cost-effective, readily available, and offers good waterproofing.
- Disadvantages: Can become brittle over time, especially in extreme temperatures.
Polymer-Modified Cements
These are enhanced with polymers for improved flexibility, adhesion, and durability.
- Advantages: Superior resistance to cracking and weathering, longer lifespan.
- Disadvantages: Typically more expensive than asphalt-based options.
Cold-Weather Cements
Formulated to remain pliable and workable in low temperatures.
- Advantages: Can be applied effectively in cold weather, preventing premature failure.
- Disadvantages: May be unnecessary and slightly pricier in warmer climates.
Fiber-Reinforced Cements
Contain fibers that enhance strength and prevent cracking, making them suitable for larger repairs or areas prone to movement.
- Advantages: Stronger and more resistant to cracking than non-fiber reinforced options.
- Disadvantages: Can be more difficult to apply smoothly due to the fibers.
How to Choose the Right Roofers Choice Plastic Roof Cement
Selecting the correct cement requires careful consideration of several factors.
Consider the Roofing Material
The type of roofing material dictates the appropriate cement. Some cements may react negatively with certain materials, causing damage or failure. Always check the manufacturer’s compatibility guidelines.
- Asphalt Shingles: Most asphalt-based or polymer-modified cements are suitable.
- Metal Roofing: Use cements specifically designed for metal, often polymer-modified.
- Tile Roofing: Requires cements that won’t stain or damage the tile.
Evaluate the Climate
Local weather conditions significantly impact the performance of roof cement.
- Hot Climates: Choose cements that are resistant to high temperatures and UV degradation.
- Cold Climates: Opt for cold-weather formulations that remain flexible.
- Areas with High Rainfall: Select cements with excellent waterproofing capabilities.
Assess the Specific Repair
The nature of the repair influences the cement selection.
- Small Cracks and Holes: A basic asphalt-based cement may suffice.
- Large Gaps or Areas Prone to Movement: A fiber-reinforced or polymer-modified cement is recommended.
- Flashing around vents and chimneys: Use a flashing-grade cement designed for this purpose.
Common Mistakes to Avoid When Using Roofers Choice Plastic Roof Cement
Improper application and selection of roof cement can lead to costly repairs and premature roof failure. Avoiding these common mistakes will help ensure a long-lasting and effective repair.
Applying in Wet or Dirty Conditions
Roof cement should always be applied to a clean and dry surface. Moisture and debris will prevent proper adhesion, leading to leaks and failure.
- Clean the Area: Remove loose debris, dirt, and old sealant with a brush or scraper.
- Ensure Dryness: Allow the area to dry completely before applying cement.
Applying Too Much Cement
Using excessive cement can create a thick, uneven layer that is prone to cracking and peeling. Apply the cement sparingly and evenly.
- Use a Trowel: A trowel or putty knife helps to apply a thin, uniform layer.
- Follow Manufacturer’s Instructions: Adhere to the recommended application thickness.
Using the Wrong Type of Cement
Selecting the wrong cement for the application or climate can result in premature failure. Always choose a cement that is compatible with the roofing material and suitable for the weather conditions.
- Read the Label: Carefully review the product label for recommended uses and limitations.
- Consult a Professional: If unsure, consult a roofing professional for guidance.
Neglecting Surface Preparation
Proper surface preparation is essential for ensuring good adhesion. Failing to prepare the surface adequately can lead to poor bonding and leaks.
- Prime the Surface (if required): Some cements require a primer for optimal adhesion, especially on porous surfaces.
- Remove Loose Material: Ensure the surface is free of loose granules, paint, or other debris.
Ignoring Temperature Restrictions
Applying roof cement outside the recommended temperature range can compromise its performance. Extreme heat or cold can affect its consistency and adhesion.
- Check the Temperature Range: Adhere to the manufacturer’s recommended temperature range for application.
- Avoid Applying in Direct Sunlight (in hot weather): This can cause the cement to dry too quickly and crack.
Table of Roofers Choice Plastic Roof Cement Selection
Scenario | Recommended Cement Type | Reason |
---|---|---|
Small crack in asphalt shingle | Asphalt-based or Polymer-modified cement | Cost-effective solution; Polymer-modified provides increased durability. |
Sealing flashing around chimney | Flashing-grade cement | Specifically designed for sealing around vertical structures; Often polymer-modified for flexibility and long-term performance. |
Repairing a large hole | Fiber-reinforced cement | Provides added strength and resistance to cracking. |
Cold weather application | Cold-weather cement | Remains pliable and workable in low temperatures. |
Metal roofing repair | Polymer-modified cement formulated for metal roofing | Prevents corrosion and provides excellent adhesion to metal surfaces. |
Roofers Choice Cement: FAQs
Here are some frequently asked questions about choosing the right roofers choice cement to help you avoid costly mistakes.
What exactly is roofers choice cement used for?
Roofers choice cement, especially roofers choice plastic roof cement, is a versatile sealant used primarily for patching and repairing roofs. It’s ideal for sealing leaks around flashings, vents, chimneys, and other roof penetrations. It also effectively seals small holes or cracks in roofing materials like shingles and metal.
How does roofers choice plastic roof cement differ from other sealants?
Roofers choice plastic roof cement is formulated to remain flexible even after curing. This flexibility allows it to expand and contract with temperature changes, preventing cracking and ensuring a long-lasting seal. Other sealants may become brittle over time, leading to future leaks.
Can I use roofers choice cement on any type of roofing material?
While versatile, it’s always best to check the product label for compatibility. Roofers choice plastic roof cement typically works well on asphalt shingles, metal roofing, and some modified bitumen roofs. Avoid using it on TPO or EPDM roofing materials without verifying compatibility first.
What should I consider when selecting a specific brand of roofers choice plastic roof cement?
Consider the weather conditions in your area. Some roofers choice plastic roof cement formulas are designed for specific climates, such as those with extreme heat or cold. Look for brands known for their durability, flexibility, and resistance to UV degradation for the best and longest lasting results.
Alright, you’ve got the lowdown on roofers choice plastic roof cement! Hopefully, this helps you avoid those pesky roofing problems and keeps your house dry and happy. Happy roofing!