How To Seal A Roof Valley

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.

How to seal a roof valley. This method of lead valley repair is proven to not only be fast and safe wit. Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. Roof one side of the valley running the shingles across it. This recommendation includes iko s premium shingles.

The distance between the shingles should widen from the ridge to the eave at 1 8 inch per foot of valley. When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. To seal make sure there is no debris in the valley. The three methods to shingle a roof valley.

Though roof valleys are com mon leak sites on shingle roofs it s typically fairly easy to fix these problems with a little know how. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Check the entire roof valley carefully to locate the source of these problems. In other cases water can become trapped under shingles which have been overlaid to create the valley trough.

Check that the roofing material is cut in a straight smooth line on each side. Roof valleys are the v shaped metal channels that sit between the folds of the roof where two sloped sections meet. Valleys channel water away and. Shingle the other side of the valley the same way.

Stop nailing 6 inches from the center. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Once the roof valley has begun to leak you will need to cover the valley with flashing in order to prevent a repeat of the problem. Lift each shingle and use roofing cement to coat the area that lies on the valley.

Iko recommends that you install architectural shingles with the open valley method for the best roof performance. A roof valley is very prone to leaks especially if you have an older roof. In order to lay the flashing the shingles on the roof will have to be removed. Step 2 remove the shingles.

Best practices for sealing the metal roof valley vary based on the slope of the roof. Valley seal eliminates the need for expensive cement bedding. This video shows the traditional and best way to repair a lead valley on a roof. Let s take a look at valley seal and how it can help keep your roof in top condition over the long term.