I have a job coming up on Cape Cod (Chatham) and the guy wants to use pressure treated roof shingles. He says that the green tint goes away in a short amount of time. I don’t want do the job twice and the property/building is worth about 1.5m. Looks are important.
Any thoughts from those that have used or seen these? I never have.
TIA and Happy New Year.
Replies
Rob, I am not a roofer but I do know that there is a Southern Yellow pine shake treated with the green solution ACQ that I would steer clear of. I looked at a house with this shake on it and they are very unstable. The shingles were curled and buckled all to hell and looked awfull. I know that there is treated cedar shingle but it is treated with a clear product. In my opinion proper installation of a natural cedar shake or shingle is the way to go. Good luck. Jay
http://www.cedarbureau.org/
Any thoughts from those that have used or seen these? I never have.
Dont use them! We did about 3 years ago. Within a year they were so unsightly that we had to re-do with cedar. They curl,warp, and cup. Nasty stuff,surprised they are still trying to sell the crap.
Forget it.
Every incarnation of this unmarketable crap I have seen in 35 years is and has been a mistake.
First, the only reason for needing the treatment is because the wood itself is inappropriate for roofing. Others have mentioend SYP, which is prone to being unstable in extremes of weather. I've seen it on Aspen and Poplar also. They each fail and rot as soon as they can without treating in exterior appplications and have a lot of movement from moisture and heat.
Secondly, the latest version of chemical being used for treatment is a copper base that will eat up any steel near it in short order - weeks to months - when in the direct path of water, except for good stainless steel.
It will fade eventually and the surface will turn to a steel grey - just before it all curls up and waves good-bye at you, so he is right on that point.
Welcome to the
Taunton University of Knowledge FHB Campus at Breaktime.
where ...
Excellence is its own reward!
What do you guys use for wood roofs?
I have never used pt shingles, but I have used about a bazzilion sq. of cedar perfections , but they seem to only last around 15 years or so.
My own hose I used handsplits, they now are thin as cardboard , very brittle,and in need of replacement- 20 years old.
I have been telling my clients that wood roofs is a bad idea being they cost 3-4x asphalt & last a shorter time. Most still want the look and go with wood anyway, so I would love to know what to suggest instead of untreated cedar.
Cedar - properly laid, they will last 20-40 years. Depends some on pitch and climate too though. Fifteen is pretty minimal
Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!
Yeah, thats what I used to say.. it'l last 40 yrs.. but they don't.
The issues I have had are not curling,splitting, or leaking, but perfections when installed are 3/8" at the butt, after a short time ( 15 years) they are only an 1/8" .
I've been told it is due to acid rain, also been told it is due to new growth vs old growth cedar, but whatever, I try to steer my clients away from wood, but still put on a pile of em.
I have them on my personal house; Life Pine. They are the ONLY solution in humid climates. Cedar will mold and moss in a couple of years. Ours is 15 years old, and just super. Never done a thing to it. 57 squares.
I could go on and on. 24" long, random width, about 1" thick at the butt. 8" exposure mostly.
Forrest