Wichita KS Metro Area Roof Valley Installation – Open or Closed Valley

The valley area of a roof is an area where two parts of a roof meet at an angle or where a “v” is formed. It is an important area when it comes to weatherproofing a roof. A roof valley is where a great deal of runoff water can be concentrated during a storm. An improperly laid roof valley can easily become vulnerable to developing leaks so it is important that they be done right.

The two predominate methods of flashing a valley area on a roof in order to protect it on a shingle roof: “open valley” and “closed valley”.

Open Valley Installation

In an open valley installation, an extra valley lining is installed and left exposed after shingles are installed giving it a more open surface.

Open valley shingle constructionRoof line - open valleySide view of open valley roofing

Closed Valley Installation

In closed valley roofing, shingles are installed over the valley areas so that it covers (closes) the area and creates its own valley lining. Also roll roofing or ice and water shield is required by code in this configuration in order to offer additional protection.

Roofing shingles installed in closed valleyCloseup of closed valley roofing shinglesClosed valley roofing

Both open and closed valley are visually appealing, and it is often a homeowner style preference. Roof lines with numerous valleys may see a higher cost with open valley installation. Both open valley and closed valley perform well when installed properly.

S&A Construction offers homeowners a choice between open or closed valley roofing installation in the Wichita, Kansas metro and surrounding communities such as Hutchinson, Newton, McPherson, and Derby. If your home is in need of a new roof or a roof repair, please request a free estimate or call your “One Contractor, from beginning to end” at (316) 262-6770 today.