Yes, A Valley Needs Liner
A valley on a roof typically requires a valley liner to provide additional protection against water infiltration and prevent damage to the underlying structure. Valleys are the areas where two roof slopes meet, and are vulnerable to water infiltration due to the concentrated flow of water in these areas.
A valley liner is a membrane that is installed along the valley to provide a watertight seal and prevent water from infiltrating under the roofing materials. Valley liners are typically made from materials such as metal, rubber, or synthetic materials, and are installed in a manner that helps to direct water away from the valley and toward the eaves.
Proper installation of valley liners is crucial to the overall performance and durability of a roofing system. Working with a professional roofing contractor who is knowledgeable about valley liner installation can help ensure that your roofing system is properly protected against water infiltration and other issues. Regular maintenance and inspection of your roofing system can also help to identify potential issues with valley liners and other components before they become more serious problems.
