What type of roofing material is often discouraged due to its maintenance needs?

Pitch pockets are generally discouraged as roofing materials primarily due to their significant maintenance requirements. A pitch pocket is a type of roofing detail typically used to protect protrusions, such as pipes or HVAC units, where a hole is made in the roof to accommodate these installations. These pockets are filled with materials like roofing cement or pitch, which can deteriorate over time and will require regular checks, repairs, and potential reapplication to prevent leaks.

Their reliance on ongoing maintenance poses a challenge for building owners and contractors, as neglected pitch pockets can lead to water infiltration and subsequent damage to the roofing system and the underlying structure. This necessity for consistent upkeep makes them less favorable compared to more durable and low-maintenance roofing materials.

On the other hand, materials such as PVC roofing and EPDM roofing are generally designed to be more durable and require less frequent maintenance. Asphalt shingles, while they do have a lifespan and potential maintenance needs, are also widely considered manageable compared to the higher upkeep demands of pitch pockets. Thus, pitch pockets stand out as a roofing detail that demands more attention and care, which is why they are often discouraged in roofing applications.