The Great Valley Controversy

Since I do this stuff for a living, I thought I'd add some pix I took today. This is of a 28ga. SS valley. The splits are in the buckles and not a corrosion issue. I'm sure the corrosion appearance is deterioration from the weakened metal where it buckled and then split first. The camrea doesn't do it justice. These buckles are an 1" high!

http://www.rooferscoffeeshop.com/rcs/users/tinner666/

BTW, GAF reccommends nailing the valleys on their roof like this. The shingles magicly prevent expansion and contraction issues.

16oz, 24" in Phoenix is about $160

Woody, $220. a sheet for 20 oz. here. I couldn't imagine needing 24" valley though. If I needed it, I'd make it myself in the shop though and use the other 12" for regular valleys.

wywoody; Here in small-town Colo. 16oz copper, 10' legnth, 24" 'W' vly mtl.$160.....I would imagine less in the city.

Nice looking valley detail. I have had valleys leak back in the begging circa 1970's. The problem was not enough nails in the valley for asphalt shingles. Deep Down In Florida Where The Sun Shines Damn Near Every Day we are required to use nails every 5 inches and plenty of roof cement with a S/A underlayment under valley metal. B) :) :) B) Deep Down In Florida Where The Sun Shines Damn Near Every Day

Nice job Tinner! Don't see many guys do it the correct way these days. When I would tell people that with slate the valleys needs to be smaller so I would not nail into the metal they thought I was crazy. Never had a leak in a valley in 35 years.

I prefer the 2-nail method for valleys myself.

The new valley. You'll notice the only two nails that belong in the valley metal. And it turned out I should have used 10" or 9" metal. I had to leave it open tonight and go get larger slate. The 6x10's on one side are too small to allow me to nail them outside the 12" valley metal.