Houstosic Valley Roof

Iko recommends that you install architectural shingles with the open valley method for the best roof performance.

Houstosic valley roof.

A closed valley is where the tiles or shingles are butted up against each other in the center of the valley. An open valley has a gap usually about 6 inches between the tile or shingles at the valley area. 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.

But it doesn t have to be. The following photos illustrate removal and replacement of a closed cut valley with new open metal valley shingles being removed in closed cut valley. Roofing material manufactures or roofing associations may have recommended installation guidelines for their products or for various. Use roof valley cleats at intervals of 24 o c.

Framing a complex roof is one of the trickiest parts of home building. Attach the valley in place with 1 1 4 inch roofing nails and a shingle hatchet or hammer. Ice barrier underlayment installed in roof valley. The installer fabricates simple clips or valley flashing cleats whose bent edge interlocks with the folded over or hemmed edges of the metal roof valley flashing to secure the valley to the roof deck.

When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. The three methods to shingle a roof valley. This recommendation includes iko s premium shingles. Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet.

Using clips permits movement in the valley as temperatures change. To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof. If you begin with accurate as built measurements and use a construction calculator to do the math you can cut all of the rafters for most roofs on the ground in just one shot. The top joinery of both valleys when they meet on the same plane of roof is shown here.

All shingles removed from closed cut valley. I mark the shingle where the valley center crosses the top edge and i mark the roof at the top outside corner of the shingle. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off.