Owens Corning Raft-R-Mate Installation Guide

Raft-R-Mate by Owens Corning is designed to provide a reliable, energy-efficient solution for roofing installations. This guide covers preparation, proper tool use, and step-by-step instructions to ensure a secure and long-lasting installation. The information aligns with common best practices for Owens Corning roof systems and aims to help installers achieve optimal performance and warranty compliance.

What Is Raft-R-Mate and Its Benefits

Raft-R-Mate is a component used in roofing assemblies to improve alignment, ventilation, and overall roof performance. It helps maintain consistent spacing, reduces wind uplift risks on certain roof designs, and can contribute to more efficient shingle installation. When installed correctly, Raft-R-Mate supports uniform exposure and edge hold, which can enhance long-term durability and aesthetic appeal. The product is designed to integrate with Owens Corning shingles and underlayment systems, supporting a seamless, code-compliant roof assembly.

Tools and Materials

• Owens Corning Raft-R-Mate hardware (as specified for the project)
• Measuring tape and carpenter’s pencil
• Chalk line for straight layout
• Tin snips or utility knife for cuts
• Hammer or impact driver with appropriate bits
• Drill/driver with masonry bit if applicable to deck fasteners
• Roofing nails or screws recommended by Owens Corning
• Roofing felt or underlayment as required
• Roofing adhesive or sealant approved by Owens Corning
• Safety gear: goggles, work gloves, fall protection, and stable ladder
• Level or laser for precise placement

Preparation and Safety

Begin with a thorough site assessment and ensure the roof deck is sound, dry, and free of debris. Verify that the Raft-R-Mate installation is compatible with the chosen Owens Corning shingles and warranty requirements. Check local building codes and ventilation requirements for the roof assembly. Safety is paramount: use fall protection, secure ladders, and wear PPE. Prepare a layout plan that marks starting points, ridge alignment, and any roof penetrations. Having a clean, organized workspace reduces installation errors and speeds up the process.

Step-by-Step Installation

1. Layout the roof plane using a chalk line to establish straight rows consistent with the selected fastener pattern. Begin at a consistent starting edge to ensure uniform exposure.
2. Position Raft-R-Mate at the designated locations following Owens Corning specifications. Ensure proper alignment with the roof deck and rafter framing as required by the product sheet.
3. Secure Raft-R-Mate with the recommended fasteners. Use the specified quantity and spacing to achieve a firm attachment. Over-torquing should be avoided to prevent deck damage.
4. Check each placement for plumb and level. Adjust as needed before continuing to avoid cumulative misalignment that affects shingle layout.
5. Proceed across the roof plane, maintaining consistent spacing and alignment with adjacent Raft-R-Mate units. Use a chalk line to verify continuous rows and straight lines.
6. Carefully cut materials to fit around edges, penetrations, and hips. Use appropriate tools to maintain clean, straight cuts that fit snugly against the deck and Raft-R-Mate components.
7. Install underlayment or roofing underlayment as required by Owens Corning guidelines, ensuring compatibility with Raft-R-Mate. Secure the underlayment per the manufacturer’s recommendations.
8. Install Owens Corning shingles following the Raft-R-Mate layout. Maintain consistent shingle exposure, aligning with the Raft-R-Mate spacing to avoid gaps or misalignment.
9. Seal joints and fasteners with approval sealants or adhesives when specified. Verify that all fasteners are fully seated and watertight to prevent leaks.
10. Conduct a final inspection of the entire installation, checking for loose fasteners, misaligned components, and potential gaps. Address any issues before completing the project.

Common Issues and Troubleshooting

• Misalignment: Re-check layout lines and adjust Raft-R-Mate positioning before continuing. Use a level to verify consistency across the plane.
• Inadequate sealing: Ensure sealants and flashings are properly applied and that the underlayment is compatible with Raft-R-Mate installations.
• Fastener failure: Use the recommended fastener type and spacing to prevent pull-out or movement under wind loads.
• Edge lift: Confirm edge plates and fasteners are properly secured and that shingle overhangs align with the Raft-R-Mate system to resist wind uplift.

Maintenance and Warranty Considerations

Regular inspections after installation help identify wear, gaps, or sealant degradation. Address issues promptly to maintain performance and warranty eligibility. Keep detailed records of the installation, including fastener type, spacing, and any deviations from standard procedures. Refer to Owens Corning warranty documentation for specific coverage related to the Raft-R-Mate system and its integration with shingles and underlayment.