Are roof decks always sloped for drainage?

The assertion that roof decks are always sloped for drainage is accurate in the context of many design standards and practices. Roof slopes are essential for ensuring proper drainage of water to prevent pooling, which can lead to leaks, structural damage, and other potential issues.

While certain roofs, especially low-slope roofs, might employ specific drainage techniques or systems to manage water, a well-designed roof deck typically incorporates a slope to facilitate effective water runoff. The slope ensures that rainfall or snowmelt flows efficiently toward designated drainage points, such as gutters or drains. A flat or improperly sloped roof can create stagnant water, increasing the risk of water intrusion and compromising the integrity of the roofing materials.

It's important to note that while various design considerations may influence the degree of slope required, the fundamental goal remains consistent across most roofs: to provide adequate drainage. Therefore, saying that roof decks are always sloped for drainage aligns with general best practices in roofing design.