Final answer:
Step flashing is the small L-shaped metal pieces used to protect the intersection of a roof and vertical surfaces such as walls or chimneys from water penetration.
Step-by-step explanation:
The kind of flashing consisting of small L-shaped pieces of metal used where a sloped roof meets a vertical surface, like a wall or chimney sides, is called step flashing. These metal pieces are placed in layers with shingles to ensure that water flows away from the wall or chimney, preventing leaks. Step flashing allows each step to overlap the one below, providing an effective water barrier and integrating seamlessly with the roof material.The type of flashing that consists of small L shaped pieces of metal used where a sloped roof meets a vertical surface is called step flashing. Step flashing is commonly used to prevent water from entering at the roof and wall junction. Each piece of step flashing overlaps the previous one and is sealed to the roof shingles and the wall using a waterproof sealant.
The type of flashing that consists of small L shaped pieces of metal used where a sloped roof meets a vertical surface is called step flashing. Step flashing is commonly used to prevent water from entering at the roof and wall junction. Each piece of step flashing overlaps the previous one and is sealed to the roof shingles and the wall using a waterproof sealant.