What is a potential consequence of stacking asphalt shingle bundles unevenly?

Stacking asphalt shingle bundles unevenly can cause bundle distortion, which refers to the deformation or misalignment of the shingles within the bundle. When shingles are not stacked properly, there is an increased risk of warping or bending. This distortion can lead to difficulties during installation, as the shingles may not lay flat or adhere properly, potentially resulting in gaps that can allow water intrusion.

Proper stacking is crucial for maintaining the integrity of the shingles, as well as ensuring that they remain in good condition until they're installed. When bundles are properly stacked, it helps preserve their shape and ensures they are ready for use without any damage that could arise from improper handling or storage conditions. Therefore, avoiding uneven stacking is essential for maintaining the quality of the shingles and facilitating a smooth installation process.