What condition may cause shingles to fail to bond?

Shingles may fail to bond properly due to unusual steepness in the roof's pitch. When a roof has an excessive angle, it can create difficulties for the shingles to lay flat and secure themselves properly. Steep roofs can also lead to increased winds and water runoff, potentially displacing the shingles or making it difficult for the adhesive to set correctly.

Additionally, the installation process can be more challenging on steep slopes, as it may not allow the installer to have the right positioning or access to ensure that each shingle is applied evenly. Proper bonding is crucial for shingle performance, as it helps to prevent issues such as leaks, lift, or premature wear. Roofs with unusual steepness should be approached with specific installation techniques that address the unique challenges they present to ensure the shingles are securely bonded.