When installing roof felt, both nailing and gluing are commonly used methods, but they serve different purposes and are often used together for optimal results. Understanding when and how to use nails or adhesive ensures a secure and durable installation that will protect your roof from the elements.
Nailing the First Layer of Felt
The first step in installing roof felt is to secure the base layer using nails. This layer provides a stable foundation for the roofing system and gives the adhesive a surface to bond to.
Why Nail the First Layer?
- Stability: Nailing prevents the felt from shifting during installation.
- Support: It creates a secure base for the adhesive to adhere to.
- Ease of Application: Nails are quick and effective for securing large areas of felt.
How to Nail the Felt
- Roll out the first layer of felt and position it on the roof.
- Use clout nails, spaced approximately 150mm apart along the edges and overlaps.
- Ensure the felt is flat and taut before nailing to avoid rippling.
Using Adhesive for the Second Layer
Once the first layer is nailed down, roofing adhesive is applied to bond the second layer of felt. This creates a watertight seal and improves the overall durability of the roofing system.
Why Use Adhesive?
- Watertight Seal: Adhesive prevents water from seeping between layers of felt.
- Enhanced Durability: Reduces the risk of wind lifting the felt.
- Professional Finish: Provides a seamless look and extra protection at overlaps.
How to Apply Adhesive
- Apply Adhesive to the First Layer:
- Use a disposable brush to spread adhesive evenly across the surface of the nailed felt.
- Pay extra attention to edges and overlapping areas.
- Allow the Adhesive to Set:
- Let the adhesive cure for approximately 30 minutes before adding the next layer.
- Lay the Second Layer of Felt:
- Position the second layer of felt on top of the adhesive.
- Press it down firmly to eliminate air pockets and ensure a strong bond.
Combination of Nailing and Gluing
In most roofing projects, both nailing and gluing are used together for optimal results. Nails provide immediate stability, while adhesive adds long-term durability and weatherproofing. This combination ensures the felt stays secure, even in challenging weather conditions.
When to Use Only Nails or Adhesive
- Nails Only: Suitable for temporary installations or projects where adhesive is not available. However, this method is less effective at preventing water ingress.
- Adhesive Only: Typically used for flat roofs or smaller projects where nailing may not be practical.
The best way to install roof felt is by combining both nailing and gluing. Start by nailing the first layer of felt to create a secure foundation, then use adhesive for the second layer to ensure a watertight seal and enhanced durability. By using both methods, you can protect your roof effectively and extend its lifespan.
For high-quality roofing felt, adhesives, and clout nails, visit GetYourselfFelt.co.uk today. Let’s help you get your project started!
