valley flashing การใช้

• Valley flashing is the covering used to protect the junction between two sloping roof sections.
• Metal valley flashing is durable and will not usually cause problems unless it is damaged.
• Flashing installed incorrectly can promote line corrosion and shorten the life of valley flashing, especially in acidic environments.
• Most Tudors have slate roofs that are extremely durable, but the valley flashing between the many gables and dormers is not as rugged and is subject to leaks.
• They should not be confused with so-called "'valley gutters "'or "'valley flashings "'which occur at the non-parallel intersection of roof surfaces, typically at right angled internal corners of pitched roofs.