California Valley Roofing Style

A variation of closed cut valley.

California valley roofing style.

This is an incorrect installation of this type of roofing material and will be more prone to water intrusion and will void the manufacturer s warranty. A valley shingle is then installed parallel to the centerline and offset a couple of inches. Woven valleys should only be used with strip shingles. Key points in all valley details are the.

With shingles bedded in cement it can be exported to other states. These reasons and the aesthet ics of the california style valley should be explained to consumers. There are no trees overhead but we get lots of snow ice and rain northern new england. One company said metal valleys on both sides.

It s sometimes called a california cut valley. The roofing company is saying that this is a california style valley and it was installed property however it looks differently during different times of the day. I noticed a bulge on the roof. We ve had 4 estimates for replacing the roof with differing opinions on what it needs.

A type of cut valley common in many places appears cut but it s not. California cut valleys make for a great closed cut valley however we have an installation trick to improve performance in areas of high winds snow or rain. Here are diagrams of each style valley style. Look down the ridge of the valley metal to make sure it is straight from top to bottom and nail it off.

Here is eric s method. It is mostly visible when the sun hits it in the afternoon. A california valley is faster than cutting all of the shingles up a valley. For a closed valley shingles are installed across the joint where planes intersect.

Here we have a laminated shingle roof that has been installed with a woven valley detail. According to long time iko sales representative jeff tessaro closed valleys for residential construction have been popular since he was a roofing contractor in the late 90 s. For this method the last shingles on the cut side of a cut valley are actually installed sideways so they run up and down the valley. With each new course roofing shingles continue up the valley.

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. Make sure the valley metal is straight before nailing it. The house had an addition built in the 1970s kind of a funky roof line on one side of the add on creating a sort of half valley on that side. One variant of the closed cut valley is the california valley also called long island valley and new jersey valley.

Critical points to remember valley underlayment and flashing combined with valley construction comprise one of the most critical details of an asphalt shingle roof system. But it is pretty visible.