Tongue and Groove edges are a critical feature for wall insulation, providing several advantages over simple square (butt) edges:
- Reduced Thermal Bridging: The interlocking edges create a continuous, tight-fitting seam that minimizes air gaps between boards. This significantly reduces heat loss through the joints, improving the overall thermal efficiency of the insulated assembly.
- Easier Installation: The interlocking design helps align boards during installation and can provide a more stable surface before final attachment.
- Improved Air Tightness: The tighter fit acts as a better barrier against air infiltration, enhancing the building envelope’s performance.
- Resistance to Shifting: The interlock helps prevent boards from shifting or separating over time due to thermal expansion/contraction or building movement.
