Flashing is an important part of the roofing system on your house. It is used along chimneys, vents, and walls to prevent water from entering the structure. Made of aluminum, copper, or galvanized steel, it must be properly installed to avoid a leaky roof.
Gravity
Flashing has been in use for centuries. It uses gravity to direct water away from your home’s interior. Water that strikes a vertical surface on the roof will hit the flashing and be directed safely onto the roofing material.
Movement
A professional roofing company knows that every roof experiences movement. The warmth of the sun causes materials to expand, while the cool temperatures at night will cause them to contract. Flashing is subjected to extreme weather throughout the year. The sun beats down on it and heavy snow will stress it. Proper installation is necessary for it to withstand these changes.
Skilled Installation
Flashing is installed around skylights, chimneys, walls, vents, and any other item that rises out of the roof. It cannot simply be caulked to the structure. The forces of gravity, wind, and movement must be taken into account. It must be secured tightly to prevent water from getting behind the flashing and into the structure. It requires a great deal of experience and skill.
Repairs and Replacements
Flashing can be repaired on a roof that is otherwise solid. This is a repair that should be completed by experienced roofers to ensure it is done properly. All flashing should be removed and replaced during a full roof replacement.
Materials
Steel flashing is an affordable material that comes in pre-formed shapes. The downside of steel is that it can begin to corrode and fail in as little as 15 years. A better choice is stainless steel. While the cost will be a little higher, it is more durable. Stainless steel is resistant to rust and can still be formed into complex shapes. Aluminum flashing is also a cost-effective, durable, and workable choice. The best option for flashing, especially on slate roofs, is copper. It is the most durable and the most expensive option.
The flashing on your roof is a vital part of any roofing system. Robbins Roofing has the experience and skills needed to properly install or repair flashing on your roof. Visit us on Facebook or Twitter to learn more about the importance of a quality roofing installation.
