Joints that occur at laps where three single-ply sheets intersect are called?

Joints that occur at laps where three single-ply sheets intersect are called?

• A. W-joints
• B. T-joints
• C. Y-joints
• D. Cross joints

Answer: (B)

A T-joint is formed when three single-ply sheets intersect at a lap in a way that one sheet's seam is met by another sheet perpendicularly, creating a T-shaped intersection. This configuration is common at laps where three sheets meet, and it dictates specific flashing and sealing approaches to manage water flow along the seam. A Y-joint would have three sheets meeting at a point in a Y-shaped arrangement rather than along a single lap, a cross joint involves four sheets crossing, and a W-joint describes a different pattern altogether. So the three-sheet intersection at a lap best fits the T-joint description.

A T-joint is formed when three single-ply sheets intersect at a lap in a way that one sheet's seam is met by another sheet perpendicularly, creating a T-shaped intersection. This configuration is common at laps where three sheets meet, and it dictates specific flashing and sealing approaches to manage water flow along the seam. A Y-joint would have three sheets meeting at a point in a Y-shaped arrangement rather than along a single lap, a cross joint involves four sheets crossing, and a W-joint describes a different pattern altogether. So the three-sheet intersection at a lap best fits the T-joint description.