Post Number: 4
|Posted on Tuesday, March 22, 2011 - 04:33 am: ||
That whether the slate is brittle or not depends on Sio2 content. It should be between 70%-75%. If too high, the slate is too brittle to worke hard. And Low CaO make the slate non-fading. ABC supply is the distributor of Evergreen. They are both in USA.
Any question, can contact me via email directly. firstname.lastname@example.org
Nancy Rao-shanghai AD slate Co., Ltd. ASTM-S1. Roofing slate manufacturer.
Post Number: 571
|Posted on Wednesday, January 05, 2011 - 08:05 pm: ||
I have heard that about some of the slate from Brasil. Very brittle and hard to work with. No oversight or control over the product either. Who do you complain to after you have paid for it and you "own" it?
Post Number: 5
|Posted on Wednesday, January 05, 2011 - 03:31 pm: ||
they are already on the house. I just got more for an addition and found it hard to work, very brittle. just wondering if any one else found it hard to work ? my only other experience was a roof that was 100 years old and it was so much easier to work.
Post Number: 102
|Posted on Monday, January 03, 2011 - 01:46 pm: ||
Very well said!!!! I agree completely.
Eric P. Loema
Sales | Salvage | Procurement
P (800) 699-5695 | F (815) 547-1425
Web: www.TileandSlateSales.com | www.ClayTileRoof.com
E-mail: epl@TileandSlateSales.com | epl@ClayTileRoof.com
Post Number: 147
|Posted on Monday, January 03, 2011 - 01:00 pm: ||
Here's my thought: Can supplier ABC or importer American Slate in California show us a roof with "Andes Cliff" on it that's at least 75 years old; you know, the limited warranty that they're offering? No? That's a problem.
The Andes mountains don't even pass through Brazil, which gives me pause. Is the stone quarried in Peru or Argentina, but exported out of Brazil? How many hands does it pass through? Where is the quarry? Any old roofs in the surrounding communities with this material on it?
Looks like good old sea green slate, 18x12's for $285/square, tried and true, quarried right here at home in Slate Valley NY/VT.
Post Number: 3
|Posted on Monday, January 03, 2011 - 09:06 am: ||
any thoughts on "andes cliff" grey slate from brazil sold from abc supply http://www.americanslate.com/documents/AMS_DataSheet_Roof-AndesCliff.pdf