what is wrong with this valley?

I went out on a repair the other day. The contractor had a framer that said he could install the shake roofing on this addition. From the looks of it he tried to do the valley without a saw.

Lanny

I posted the pics but I see html is not allowed.

---I didn't take any pics of the finished repair. Basically I cut the valley pieces as normal and installed them piecing in the gaps. ---The left side felt is indeed wrong and that was the addition tied into the old roof (right side) at the valley. Since it was 12/12 I didn't deal with anything except the valley. I did use some 16 inch shingles to fill some holes. I use them instead of tin shingles for crack over crack repairs because they are cheaper. Lanny

"Copperman" and "Old School" are correct. The whole left side looks like the addition? With the felt installed this way...It will weather at a fast rate over time, will crack and finially split. If there is a seam on seam or close to it, it will leak on the bare plywood...or in another case I experience!!!!

A 50sq shake job about 7 yrs old was installed the same way.....with "spaced" sheeting. With seam on seam in many places on this roof, the felt was cracked wide open....dumping water through the gap in the spaced sheeting. Customer did not want to replace the roof and wanted the quickest and most inexpensive solution, so used 5 bundles of 8 x 12 step for all the cracks I could find.

In this situation he should have measured the roof than divided that total to lay courses as close to 10" exposure as possible. Looks like he may have got lucky and wound up with an acceptable exposure by accident. Will you be tearing off his entire job or working with what you got?

Jed, on the 24" shakes, you "interlace" the felt between the rows of shakes, but the bottom of the felt is 20" above the bottom of the shake just installed so that the felt isn't exposed in the joints between the shakes. When I do it, I just felt the whole roof with 18" wide #30 felt laped at a 10" exposure, making sure to leave the bottom loose. That way, you can slip the shake underneath the felt so that the top 4" is covered. The felt will keep the shakes straight and the next row of felt up will give you the naiing line to go by. It works slick and is quite fast.

Maybe he was just conserving material.

I missed the other detail about the felt. :woohoo:

Give the guy credit, he figured out how to make a couple of debris dams in the middle AND expose almost all your valley metal.

I don't see it Copperman, Am I not looking at a strip of 30lb between each course of shakes? If so then that is an approved method no?

good eye...missed that.

Jed The roof itself is installed wrong. The felt shows between the coarse as seen in the second picture. The felt is 10 inches to low.

I believe the felt on the left was already there. It just shows where shakes were removed for his repair work. Is that 2" pipe in the valley?

Looks like many around here.

Wow,look at all those crack over cracks... :S

My first thoughts were he intended on coming back to do the cuts, unaware that he would'nt be able to slide them under and fasten them cos I see that the left side is installed with 30lb in between each course indicating the guy knew what he was doing. On closer look I see the left side has'nt been touched by the "framer"......so I think he's full of it. Plenty of roofers turn to framing, I don't know many framers who turn to roofing though.

A framer without a saw??????

highlite the image url then click the Image button on the left and it will wrap the image tag around the url.