Re: [RE-wrenches] Aluminum Roof shingles flashing

2012-07-02 Thread benn kilburn
James, Can you better describe the aluminum shingles? Are they flat, or curved, or…? I'm looking at a project that is using these…metrotile_roman.cfm Conergy is recommending their roman tile roof hook that mounts to the roof deck and curves out

Re: [RE-wrenches] L feet no flashing in shingle roof

2012-07-02 Thread benn kilburn
Mark, You wrote, "If you put the lag anywhere near the middle of the rafter it won't split. If it splits, it must be some cheap stuff from Home Depot. Only an engineer with no practical experience would insist on a pilot hole and the resulting reduction in holding strength." Drilling a properly si

Re: [RE-wrenches] L feet no flashing in shingle roof

2012-07-02 Thread Max Balchowsky
In the "early days" before a lot of the manufactured mounting systems became prominent we used a stainless rod hanger. it was 6 inches long with 4 in of lag and 2 inches of thread. we'd put on a fender washer and bolt, filled the hole with a product called "through the roof" - a fifty year seala

Re: [RE-wrenches] bye-bye Schott

2012-07-02 Thread Exeltech
1Soltech manufactures PV near Dallas, Texas. http://www.1soltech.com/ Helios manufactures PV in Milwaukee. http://www.heliossolarworks.com/ Solar Power Industries manufactures PV near Pittsburgh. http://www.solarpowerindustries.com/ Dan --- On Fri, 6/29/12, Marco Mangelsdorf wrote: From: M

Re: [RE-wrenches] L feet no flashing in shingle roof

2012-07-02 Thread Bill Hoffer
Mark Lags for me are old hat after using the newer structural screws. I get them local from www.screw-products.com although I know there are more companies out there that make them for the Structural Insulation Panel industry. Thinner than lags with comparable strength, they drive easy with no p

[RE-wrenches] Aluminum Roof shingles flashing

2012-07-02 Thread James Reismiller
HI All, I’m bidding a job that has an existing aluminum shingle roof. I’m wondering how to properly flash the penetrations, and what to use for standoffs. We typically use Unirac 2-piece aluminum standoffs with Oatey no-calks on a comp roof. We have used S5 VB-47’s for face-fastened metal ro

Re: [RE-wrenches] L feet no flashing in shingle roof

2012-07-02 Thread Drake
How do you flash your L feet without using a standoff? At 07:49 AM 7/2/2012, you wrote: I've found that the Flashed L-Foot connection costs about $0.10/w on a typical residential system, and only adds about 1/4-1/2" to the height, which can be minimized using the slotted holes in a typical L-F

Re: [RE-wrenches] L feet no flashing in shingle roof

2012-07-02 Thread mark
My 18V Milwaukee cordless hammer drill has no trouble driving a 5/16" lag into anything I've ever encountered.If you put the lag anywhere near the middle of the rafter it won't split.  If it splits, it must be some cheap stuff from Home Depot.  Only an engineer with no practical experience would in

Re: [RE-wrenches] Suniva modules

2012-07-02 Thread Wayne Irwin
Marco, We have been using Suniva for several years now and have been satisfied with their performance and craftsmanship. Its my understanding that only some of the module models are 100% US Made. Wayne Irwin, EE Director of Engineering Pure Energy Solar International Inc. State Licensed Sola

Re: [RE-wrenches] Trace SW4024, 1998 vintage - Still OK for grid-tie?

2012-07-02 Thread penobscotsolar
It would need a GTI (grid tie interface) in order to comply with UL 1741. There might still be some available (Ebay, etc.) > I used one made about that time in our home back in . It was the first > grid-tie in the county and worked flawlessly for about ten years before we > sold it. While it wa

[RE-wrenches] Suniva modules

2012-07-02 Thread Marco Mangelsdorf
Anyone have any experience and/or feedback on this module line out of Georgia? Thanks, marco ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/

[RE-wrenches] bye-bye Schott

2012-07-02 Thread Marco Mangelsdorf
One of my favorite manufacturers announced that they are leaving the PV modco business. Very sad. So I'm now looking for an American-made PV module...other than SolarWorld. I'm looking into Suniva. Anybody have any feedback on this brand? Or any other suggestions for a U.S.-made modul

Re: [RE-wrenches] L feet no flashing in shingle roof

2012-07-02 Thread Andrew Truitt
For many years I installed L-feet with galvanized step flashings adhered under the shingle row above the penetration. This provides a mechanical barrier and can be very durable if the flashing is well secured. - Andrew Sent from my iPhone On Jun 28, 2012, at 5:39 PM, Drake wrote: > I'm qu

Re: [RE-wrenches] L feet no flashing in shingle roof

2012-07-02 Thread Dave Click
I always thought that installing lag screws was tough enough with pilot holes- I should hit the gym. I'm not a structural PE, but I think that not drilling pilot holes violates the American Wood Council's National Design Specs and therefore violates the IBC too. I would imagine that you'd be mu

Re: [RE-wrenches] L feet no flashing in shingle roof

2012-07-02 Thread Jason Szumlanski
I've found that the Flashed L-Foot connection costs about $0.10/w on a typical residential system, and only adds about 1/4-1/2" to the height, which can be minimized using the slotted holes in a typical L-Foot. We need a lot of attachments for 172 mph design wind speeds around here. Flashings at $5