Reverse Roof Valley

Reverse gable roofs are typically perpendicular to the main roof of the house or building.

Reverse roof valley.

The bottom of our blind valley was about 30 inches short of the bottom of the porch roof so we extended the line of the valley down to the edge of the new roof. Attach the valley in place with 1 1 4 inch roofing nails and a shingle hatchet or hammer. If you have a roof valley in your home then you may find that your lead valley starts to leak or even to allow water to run onto the ceiling of the floor below. Re lay the shingles you removed from the existing roof.

When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. If you find that this is a problem then you will need to repair your roof valley before anything serious happens such as plaster loss or even major water damage. To do this we had to extend the plane of the shed roof out over the porch roof creating a small triangular extension of the existing roof. Up from the valley center.

A reverse gable roof may be part of an addition or it may be a way to install a garage without adding a new roof. This recommendation includes iko s premium shingles. Cut each side at the upper end of the valley to conform with the corresponding slopes of the roof. I have my valley custom made with water trough to help with leaking b.

Bed the end of each shingle in a 2 in wide ribbon of roofing cement placed 4 in. The three methods to shingle a roof valley. The top joinery of both valleys when they meet on the same plane of roof is shown here. Soup to nuts riley shows the proper way of installing a valley on a roof.

Closed cut valley even if i work toward the valley with three tab shingles cut valleys are faster than woven valleys hands down. Iko recommends that you install architectural shingles with the open valley method for the best roof performance. A valley s main function is to create runoff pathways to direct water flow from the roof planes into a valley trough. Shingle the addition roof letting the new shingles fold through the valley center and onto the old roof deck by at least 1 ft.

The volume of water varies with the valley s length and slope. With a closed cut valley there s no need to shingle the two roof planes at the same time. Soup to nuts riley shows the proper way of installing a valley on a roof.