Yes, rolled roofing can be installed vertically, but it requires proper fastening and is subject to specific height limitations.
When considering vertical application, it's crucial to understand the conditions under which it is suitable to ensure both performance and longevity.
Key Considerations for Vertical Rolled Roofing Installation
While primarily designed for horizontal roof surfaces, rolled asphalt can serve as a vertical covering in certain scenarios, provided the correct methods are employed.
1. Essential Fastening
For any vertical application, rolled roofing must be securely fastened. Unlike horizontal installations where gravity aids adhesion and sealing, vertical surfaces require robust mechanical fasteners to hold the material in place and prevent sagging or detachment over time. Fastening methods typically involve nails, screws, or staples, depending on the substrate, applied through the material according to manufacturer guidelines, often with cap fasteners for enhanced hold and tear resistance.
2. Height Limitations
There is a recommended maximum vertical height for installing rolled roofing above the roof surface. It is generally advisable to limit vertical installations to a maximum of 42 inches (approximately 106 cm) above the roof line. Exceeding this height can compromise the material's integrity and ability to stay securely attached, especially under environmental stresses like wind and temperature fluctuations.
3. Alternatives for Taller Applications
If the vertical height required is greater than 42 inches, rolled roofing may not be the most appropriate or durable solution. For such applications, it is often more effective and structurally sound to consider dedicated wall cladding materials. These materials are specifically engineered to withstand vertical exposure, provide better weather protection, and offer longer-term performance as a building envelope.
In summary, while vertical installation of rolled roofing is possible, it should be done with proper fastening and within the specified height constraints to ensure its effectiveness.
