Re: [RE-wrenches] Attaching Array To or Through Ply

[William Miller via RE-wrenches]

Friends:



Thanks for bringing up this scenario.



I have two problems with using a product such as the easy-feet or other
deck-fastened brackets, particularly on a rigid foam-above-sheeting roof:



1.   I worry about compression of the foam material over time.  This could
leave a void under the bracket which could lead to leaks or wobbly brackets.

2.   I don’t believe in chemical solutions for sloped-roof rain-proofing.
By that I mean the use of caulks, gaskets, etc.  Since roofs were first
thatched, the overriding wisdom is that gravity is the only way to reliably
shed water.  Overlapping, seamless material is the only method to use.
Caulks degrade, roof surfaces become powdery, and the rafter is often under
an architectural feature or seam in the shingles.

I researched the PLP EZ foot back when the company was DPW.  The fasteners
provided were not rated for the application, according to the fastener
manufacturer.  If you can match the fasteners to the decking and the
forces, then maybe you have a start to a mounting solution.



Whatever product you use, I would install it on a section of flashing
metal, lapped under the next course up.  The flashing gives a flat,
seamless surface to caulk or gasket to.  The thicker and wider the
flashing, the more you distribute the downward force

applied to the bracket by weight and fasteners.  Any voids under the
bracket will have an overlapped flashing above it.



I hope these musings help you find a solution.



William Miller



PS:  I have encountered this roof configuration a few times on flat, built-up
roofing (BUR ).  We
have dealt with it by cutting through the foam, installing blocking on top
of the sheeting and having a roofer feather the blocks into the roofing
with cant strips
.
A pitched roof is a different situation, however.



Wm



Miller Solar

17395 Oak Road, Atascadero, CA 93422

805-438-5600

www.millersolar.com

CA Lic. 773985





*From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
Behalf Of *August Goers via RE-wrenches
*Sent:* Wednesday, March 29, 2023 11:47 AM
*To:* RE-wrenches
*Cc:* August Goers
*Subject:* Re: [RE-wrenches] Attaching Array To or Through Ply



We've found that in the Bay Area that deck-mount solutions typically pencil
out structurally (via a structural professional engineer) as long as the
deck is 1/2" plywood or thicker, assuming we have all the info on how the
roof is constructed. The big assumption is that we can get all that roof
construction info, which can be difficult for existing structures.



We haven't taken the plunge yet on the flahingless deck mount products like
the Sunmodo Nanomount or Unirac Flashloc Duo. I do think that they offer
several significant advantages including not needing to find rafters, thus
virtually eliminating missed pilot holes, and not disturbing the comp
shingle by eliminating prying up the courses to insert the flashing.



August

Luminalt



On Wed, Mar 29, 2023 at 11:34 AM Solar Energy Solutions via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

We like Spider Rax… with the flashing!



*Spider-Rax PV Solar Mounting *

*spiderrax.com *

*Error! Filename not specified.* 



*Andrew Koyaanisqatsi*

President


*Solar Energy Solutions, Inc.The BRIGHT CHOICE*



*Since 1987, helping you and your *

*Portland neighbors move towards an environmentally sustainable future.*




*503-238-4502 <503-238-4502>www.SolarEnergyOregon.com
*



On Mar 29, 2023, at 11:04 AM, Jerry Shafer via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:



Wrenches

Sounds like a SIP's type product, there are quite a few multi hole
attachment bases that are designed for SIP's. Most will have a larger base,
lots of holes for screws to attach that do not require rafters underneath
to attach.

Fun times



On Wed, Mar 29, 2023, 8:30 AM frenergy via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

Matt,

I guess my questions are 1/2" plywood or 5/8" and how thick is
the foam?  Oh and I assume its nominal 2X6 T&G?  Do you know how the
plywood is attached?.through the foam into the T&G?... to stringers,
nailers or whatever they're called?

Bill

Feather River Solar Electric

Bill Battagin, Owner

4291 Nelson St.(shipping)

5575 Genesee Rd. (USPS, UPS)

Taylorsville, CA 95983

530.284.1925 Office/ 530.258.1641 Cell

CA Lic 874049

Solar powered since 1982

On 3/29/2023 7:53 AM, Dave Tedeyan via RE-wrenches wrote:

Hi Matt,

I've used these in the past when on a comp roof and there was no good way
to get into the rafters (or TJI's in this case)

https://sunmodo.com/nanomount/



You might want to replace the screws with something shorter and beefier
though to get more grip if you are only going into 1/2" p

Re: [RE-wrenches] Backwards compatibility Schneider

[Jerry Shafer via RE-wrenches]

Wrenches, Mac
You might want to find out what size battery you currently have so you can
build from there, this way you can know the current values under sized Li
on will make for an unhappy customer service.
Fun times

On Tue, Mar 28, 2023, 8:07 PM Mac Lewis via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Hello Wrenches,
>
> I have someone who would like to move away from Iron Edison batteries.
> They want to go to Lithium, I'm thinking 2 x  eVault Max would be a good
> fit for them.  They have dual 5548 XW+ (not XW Pro) inverters with a
> Schneider Gateway device,
>
> I am curious if anyone has had issues/challenges trying to get closed loop
> communications to work with this set up.  If not, how about schneiders
> battery monitor with Lithium?
>
> Thanks!
> --
>
>
>
> Mac Lewis
>
> *"Yo solo sé que no sé nada." -Sócrates*
> ___
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Re: [RE-wrenches] Backwards compatibility Schneider

[Bradley Bassett via RE-wrenches]

I have an XW5548+ with Gateway and Discover AES battery and can vouch that it 
works slick. 

Brad
AEE Solar

Sent from my iPhone

> On Mar 29, 2023, at 9:26 AM, Dave Angelini Offgrid Solar via RE-wrenches 
>  wrote:
> 
> It will be some work to make this work right for you! The XWP is based on Soc 
> and or V. If you use the Schneider bat mon, it will be a settings guess for 
> Soc. You will have to do this yearly to compare BMS Soc to the input you set 
> for the bat mon.  I doubt you will get this to work closed loop unless you 
> use the discover AES and it's closed loop gear. (not xanbus). XW+ is missing 
> the memory and is V only, to communicate with Evault thru gateway. Check with 
> Fortress as I am using older info. They may have a way to use close loop 
> gateway with their product.
>  
> The easy way here is to use XWP and not have any of the settings fiasco. It 
> will charge Soc thru gateway to eVault BMS on canbus. Or use the Discover and 
> go all xanbus and super easy set-up.
>  
> Iron Edison also makes LFP and they may shed some light. Ask them if they can 
> close loop with Gateway and XW+
>  
> 
>  
> Dave Angelini Offgrid Solar
> "we go where powerlines don't"
> http://members.sti.net/offgridsolar/
> e-mail  offgridso...@sti.net
> text 209 813 0060
> 
> 
>> On 2023-03-28 8:07 pm, Mac Lewis via RE-wrenches wrote:
>> 
>> Hello Wrenches,
>>  
>> I have someone who would like to move away from Iron Edison batteries.  They 
>> want to go to Lithium, I'm thinking 2 x  eVault Max would be a good fit for 
>> them.  They have dual 5548 XW+ (not XW Pro) inverters with a Schneider 
>> Gateway device, 
>>  
>> I am curious if anyone has had issues/challenges trying to get closed loop 
>> communications to work with this set up.  If not, how about schneiders 
>> battery monitor with Lithium?
>>  
>> Thanks!
>> -- 
>>  
>>  
>>  
>> Mac Lewis
>> 
>> "Yo solo sé que no sé nada." -Sócrates
>> 
>> 
>> ___
>> List sponsored by Redwood Alliance
>> 
>> Pay optional member dues here: http://re-wrenches.org
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Re: [RE-wrenches] Attaching Array To or Through Ply

[August Goers via RE-wrenches]

We've found that in the Bay Area that deck-mount solutions typically pencil
out structurally (via a structural professional engineer) as long as the
deck is 1/2" plywood or thicker, assuming we have all the info on how the
roof is constructed. The big assumption is that we can get all that roof
construction info, which can be difficult for existing structures.

We haven't taken the plunge yet on the flahingless deck mount products like
the Sunmodo Nanomount or Unirac Flashloc Duo. I do think that they offer
several significant advantages including not needing to find rafters, thus
virtually eliminating missed pilot holes, and not disturbing the comp
shingle by eliminating prying up the courses to insert the flashing.

August
Luminalt

On Wed, Mar 29, 2023 at 11:34 AM Solar Energy Solutions via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> We like Spider Rax… with the flashing!
>
> Spider-Rax PV Solar Mounting 
> spiderrax.com
>  
>
>
> *Andrew Koyaanisqatsi*
> President
>
>
> *Solar Energy Solutions, Inc.The BRIGHT CHOICE*
>
> *Since 1987,** helping you and your *
> *Portland neighbors move** towards an environmentally sustainable future.*
>
>
> *503-238-4502 <503-238-4502>www.SolarEnergyOregon.com
> *
>
> On Mar 29, 2023, at 11:04 AM, Jerry Shafer via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
> 
> Wrenches
> Sounds like a SIP's type product, there are quite a few multi hole
> attachment bases that are designed for SIP's. Most will have a larger base,
> lots of holes for screws to attach that do not require rafters underneath
> to attach.
> Fun times
>
> On Wed, Mar 29, 2023, 8:30 AM frenergy via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Matt,
>>
>> I guess my questions are 1/2" plywood or 5/8" and how thick
>> is the foam?  Oh and I assume its nominal 2X6 T&G?  Do you know how the
>> plywood is attached?.through the foam into the T&G?... to stringers,
>> nailers or whatever they're called?
>>
>> Bill
>>
>> Feather River Solar Electric
>> Bill Battagin, Owner
>> 4291 Nelson St.(shipping)
>> 5575 Genesee Rd. (USPS, UPS)
>> Taylorsville, CA 95983
>> 530.284.1925 Office/ 530.258.1641 Cell
>> CA Lic 874049
>> Solar powered since 1982
>>
>> On 3/29/2023 7:53 AM, Dave Tedeyan via RE-wrenches wrote:
>>
>> Hi Matt,
>> I've used these in the past when on a comp roof and there was no good way
>> to get into the rafters (or TJI's in this case)
>> https://sunmodo.com/nanomount/
>>
>> You might want to replace the screws with something shorter and beefier
>> though to get more grip if you are only going into 1/2" plywood.
>>
>> Cheers,
>> Dave
>>
>> On Wed, Mar 29, 2023 at 10:38 AM Matt Sherald via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>>> Hi All,
>>>
>>> I've run into a roof-mounted job where the roof is built-up with the
>>> following:
>>>
>>> Comp shingle
>>> Plywood
>>> Foam board
>>> T&G (roof deck, but also interior ceiling)
>>>
>>> The beams that hold the t&g up are wide-spaced and not convenient for
>>> fastening the full extent of the array.
>>>
>>> This being the case, I was considering other fastening options and am
>>> writing to pick the collective brain of the Wrenches to see how others have
>>> addressed similar situations.
>>>
>>> One thought I had was to use the PLP Easy Mounting Foot and I'd be glad
>>> for any opinions on that or another solution.
>>>
>>> -Matt
>>>
>>> --
>>> Matt Sherald
>>> PIMBY Energy, LLC
>>> 304-704-5943
>>>
>>>
>>> ___
>>> List sponsored by Redwood Alliance
>>>
>>> Pay optional member dues here: http://re-wrenches.org
>>>
>>> List Address: RE-wrenches@lists.re-wrenches.org
>>>
>>> Change listserver email address & settings:
>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>>
>>> There are two list archives for searching. When one doesn't work, try
>>> the other:
>>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>>
>>> List rules & etiquette:
>>> http://www.re-wrenches.org/etiquette.htm
>>>
>>> Check out or update participant bios:
>>> http://www.members.re-wrenches.org
>>>
>>>
>>
>> --
>> [image: Logo] 
>> Dave Tedeyan, P.E.
>> Owner | Sungineer Solar
>> p: he | him | his
>> a: 1653 Slaterville Rd. | Ithaca, NY 14850
>> w: www.sungineersolar.com 
>> c: (607) 288-2898
>>
>> ___
>> List sponsored by Redwood Alliance
>>
>> Pay optional member dues here: http://re-wrenches.org
>>
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>>
>> Change listserver email address & 
>> settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>> There are two list archives for searching. When one doesn't work, t

Re: [RE-wrenches] Attaching Array To or Through Ply

[Solar Energy Solutions via RE-wrenches]

We like Spider Rax… with the flashing!Spider-Rax PV Solar Mountingspiderrax.comAndrew KoyaanisqatsiPresidentSolar Energy Solutions, Inc.The BRIGHT CHOICESince 1987, helping you and your Portland neighbors move towards an environmentally sustainable future.503-238-4502www.SolarEnergyOregon.comOn Mar 29, 2023, at 11:04 AM, Jerry Shafer via RE-wrenches  wrote:WrenchesSounds like a SIP's type product, there are quite a few multi hole attachment bases that are designed for SIP's. Most will have a larger base, lots of holes for screws to attach that do not require rafters underneath to attach.Fun timesOn Wed, Mar 29, 2023, 8:30 AM frenergy via RE-wrenches  wrote:
  

  
  
Matt,
            I guess my questions are 1/2" plywood or 5/8" and how
  thick is the foam?  Oh and I assume its nominal 2X6 T&G?  Do
  you know how the plywood is attached?.through the foam into
  the T&G?... to stringers, nailers or whatever they're called?

Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping) 
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982

On 3/29/2023 7:53 AM, Dave Tedeyan via
  RE-wrenches wrote:


  
  Hi Matt, 
I've used these in the past when on a comp roof and there
  was no good way to get into the rafters (or TJI's in this
  case)
https://sunmodo.com/nanomount/



You might want to replace the screws with something shorter
  and beefier though to get more grip if you are only going into
  1/2" plywood.


Cheers,
Dave
  
  
  
On Wed, Mar 29, 2023 at
  10:38 AM Matt Sherald via RE-wrenches 
  wrote:


  
Hi All,


I've run into a roof-mounted job where the roof is
  built-up with the following:


Comp shingle
Plywood
Foam board
T&G (roof deck, but also interior ceiling)


The beams that hold the t&g up are wide-spaced and
  not convenient for fastening the full extent of the
  array.  



This being the case, I was considering other fastening
  options and am writing to pick the collective brain of the
  Wrenches to see how others have addressed similar
  situations.


One thought I had was to use the PLP Easy Mounting Foot
  and I'd be glad for any opinions on that or another
  solution.  



-Matt


  -- 
  

  

  Matt Sherald
  
  PIMBY Energy, LLC

304-704-5943


  
  

  

  
  ___
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  -- 
  

  

  

  


  

  
Dave
Tedeyan, P.E.
  Owner | Sungineer
  Solar
  
  
  
p: he
  | him | his
  a: 1653
Slaterville Rd. | Ithaca,
NY 14850
  w: www.sungineersolar.com

Re: [RE-wrenches] Attaching Array To or Through Ply

[Jerry Shafer via RE-wrenches]

Wrenches
Sounds like a SIP's type product, there are quite a few multi hole
attachment bases that are designed for SIP's. Most will have a larger base,
lots of holes for screws to attach that do not require rafters underneath
to attach.
Fun times

On Wed, Mar 29, 2023, 8:30 AM frenergy via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Matt,
>
> I guess my questions are 1/2" plywood or 5/8" and how thick is
> the foam?  Oh and I assume its nominal 2X6 T&G?  Do you know how the
> plywood is attached?.through the foam into the T&G?... to stringers,
> nailers or whatever they're called?
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.(shipping)
> 5575 Genesee Rd. (USPS, UPS)
> Taylorsville, CA 95983
> 530.284.1925 Office/ 530.258.1641 Cell
> CA Lic 874049
> Solar powered since 1982
>
> On 3/29/2023 7:53 AM, Dave Tedeyan via RE-wrenches wrote:
>
> Hi Matt,
> I've used these in the past when on a comp roof and there was no good way
> to get into the rafters (or TJI's in this case)
> https://sunmodo.com/nanomount/
>
> You might want to replace the screws with something shorter and beefier
> though to get more grip if you are only going into 1/2" plywood.
>
> Cheers,
> Dave
>
> On Wed, Mar 29, 2023 at 10:38 AM Matt Sherald via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Hi All,
>>
>> I've run into a roof-mounted job where the roof is built-up with the
>> following:
>>
>> Comp shingle
>> Plywood
>> Foam board
>> T&G (roof deck, but also interior ceiling)
>>
>> The beams that hold the t&g up are wide-spaced and not convenient for
>> fastening the full extent of the array.
>>
>> This being the case, I was considering other fastening options and am
>> writing to pick the collective brain of the Wrenches to see how others have
>> addressed similar situations.
>>
>> One thought I had was to use the PLP Easy Mounting Foot and I'd be glad
>> for any opinions on that or another solution.
>>
>> -Matt
>>
>> --
>> Matt Sherald
>> PIMBY Energy, LLC
>> 304-704-5943
>>
>>
>> ___
>> List sponsored by Redwood Alliance
>>
>> Pay optional member dues here: http://re-wrenches.org
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>> There are two list archives for searching. When one doesn't work, try the
>> other:
>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>
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>> http://www.re-wrenches.org/etiquette.htm
>>
>> Check out or update participant bios:
>> http://www.members.re-wrenches.org
>>
>>
>
> --
> [image: Logo] 
> Dave Tedeyan, P.E.
> Owner | Sungineer Solar
> p: he | him | his
> a: 1653 Slaterville Rd. | Ithaca, NY 14850
> w: www.sungineersolar.com 
> c: (607) 288-2898
>
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
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> --
>
>
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Re: [RE-wrenches] Attaching Array To or Through Ply

[Christopher Warfel via RE-wrenches]

Quickbolt makes a similar product to the nano. I've used it several 
times. The last time when I was trying to attach to oak beam and had no 
experience with how difficult that was.  They work well, but no greater 
than 36" spacing.



https://quickbolt.com/catalog?field_roof_type_tid=1175&field_rain_mount_tid=All&field_adjustablility_tid=All&items_per_page=12



Chris




On 3/29/2023 11:09 AM, Kristopher Schmid via RE-wrenches wrote:

Very timely post for me, Matt.  Thanks.

I was just asked to bid a roof mount with SIP panels.  My first 
thought is to just say no.  I am very hesitant to rely on the pull out 
strength of screws in OSB.


I will be watching this thread.


Shine On!

Kris Schmid
Legacy Solar, LLC
137 West 1st Avenue
Luck, WI 54853
www.legacysolar.com 
715-653-4295
NABCEP Certified PV Installation Professional
Licensed Wisconsin Master Electrician
BSEE


On Wed, Mar 29, 2023 at 9:37 AM Matt Sherald via RE-wrenches 
 wrote:


Hi All,

I've run into a roof-mounted job where the roof is built-up with
the following:

Comp shingle
Plywood
Foam board
T&G (roof deck, but also interior ceiling)

The beams that hold the t&g up are wide-spaced and not convenient
for fastening the full extent of the array.

This being the case, I was considering other fastening options and
am writing to pick the collective brain of the Wrenches to see how
others have addressed similar situations.

One thought I had was to use the PLP Easy Mounting Foot and I'd be
glad for any opinions on that or another solution.

-Matt

-- 
Matt Sherald

PIMBY Energy, LLC
304-704-5943


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--
            Christopher Warfel
                 ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
                                401-466-8978


BEGIN:VCARD
VERSION:4.0
N:Warfel;Christopher;;;
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Re: [RE-wrenches] Backwards compatibility Schneider

[Dave Angelini Offgrid Solar via RE-wrenches]

It will be some work to make this work right for you! The XWP is based 
on Soc and or V. If you use the Schneider bat mon, it will be a settings 
guess for Soc. You will have to do this yearly to compare BMS Soc to the 
input you set for the bat mon.  I doubt you will get this to work closed 
loop unless you use the discover AES and it's closed loop gear. (not 
xanbus). XW+ is missing the memory and is V only, to communicate with 
Evault thru gateway. Check with Fortress as I am using older info. They 
may have a way to use close loop gateway with their product.


The easy way here is to use XWP and not have any of the settings fiasco. 
It will charge Soc thru gateway to eVault BMS on canbus. Or use the 
Discover and go all xanbus and super easy set-up.


Iron Edison also makes LFP and they may shed some light. Ask them if 
they can close loop with Gateway and XW+


Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060

On 2023-03-28 8:07 pm, Mac Lewis via RE-wrenches wrote:


Hello Wrenches,

I have someone who would like to move away from Iron Edison batteries.  
They want to go to Lithium, I'm thinking 2 x  eVault Max would be a 
good fit for them.  They have dual 5548 XW+ (not XW Pro) inverters with 
a Schneider Gateway device,


I am curious if anyone has had issues/challenges trying to get closed 
loop communications to work with this set up.  If not, how about 
schneiders battery monitor with Lithium?


Thanks! --

Mac Lewis

"Yo solo sé que no sé nada." -Sócrates
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Re: [RE-wrenches] Backwards compatibility Schneider

[Dave Angelini Offgrid Solar via RE-wrenches]

It will be some work to make this work right for you! The XWP is based 
on Soc and or V. If you use the Schneider bat mon, it will be a settings 
guess for Soc. You will have to do this yearly to compare BMS Soc to the 
input you set for the bat mon.  I doubt you will get this to work closed 
loop unless you use the discover AES and it's closed loop gear. (not 
xanbus). XW+ is missing the memory and is V only, to communicate with 
Evault thru gateway.


The easy way here is to use XWP and not have any of the settings fiasco. 
It will charge Soc thru gateway to eVault BMS on canbus. Or use the 
Discover and go all xanbus and super easy set-up.


Iron Edison also makes LFP and they may shed some light. Ask them if 
they can close loop with Gateway and XW+


Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060

On 2023-03-28 8:07 pm, Mac Lewis via RE-wrenches wrote:


Hello Wrenches,

I have someone who would like to move away from Iron Edison batteries.  
They want to go to Lithium, I'm thinking 2 x  eVault Max would be a 
good fit for them.  They have dual 5548 XW+ (not XW Pro) inverters with 
a Schneider Gateway device,


I am curious if anyone has had issues/challenges trying to get closed 
loop communications to work with this set up.  If not, how about 
schneiders battery monitor with Lithium?


Thanks! --

Mac Lewis

"Yo solo sé que no sé nada." -Sócrates
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Re: [RE-wrenches] Attaching Array To or Through Ply

[frenergy via RE-wrenches]

Matt,

            I guess my questions are 1/2" plywood or 5/8" and how thick 
is the foam?  Oh and I assume its nominal 2X6 T&G?  Do you know how the 
plywood is attached?.through the foam into the T&G?... to stringers, 
nailers or whatever they're called?


Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982

On 3/29/2023 7:53 AM, Dave Tedeyan via RE-wrenches wrote:

Hi Matt,
I've used these in the past when on a comp roof and there was no good 
way to get into the rafters (or TJI's in this case)

https://sunmodo.com/nanomount/

You might want to replace the screws with something shorter and 
beefier though to get more grip if you are only going into 1/2" plywood.


Cheers,
Dave

On Wed, Mar 29, 2023 at 10:38 AM Matt Sherald via RE-wrenches 
 wrote:


Hi All,

I've run into a roof-mounted job where the roof is built-up with
the following:

Comp shingle
Plywood
Foam board
T&G (roof deck, but also interior ceiling)

The beams that hold the t&g up are wide-spaced and not convenient
for fastening the full extent of the array.

This being the case, I was considering other fastening options and
am writing to pick the collective brain of the Wrenches to see how
others have addressed similar situations.

One thought I had was to use the PLP Easy Mounting Foot and I'd be
glad for any opinions on that or another solution.

-Matt

-- 
Matt Sherald

PIMBY Energy, LLC
304-704-5943


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--
Logo 
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com 
c: (607) 288-2898


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--
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Re: [RE-wrenches] Attaching Array To or Through Ply

[Kristopher Schmid via RE-wrenches]

Very timely post for me, Matt.  Thanks.

I was just asked to bid a roof mount with SIP panels.  My first thought is
to just say no.  I am very hesitant to rely on the pull out strength of
screws in OSB.

I will be watching this thread.


Shine On!

Kris Schmid
Legacy Solar, LLC
137 West 1st Avenue
Luck, WI 54853
www.legacysolar.com
715-653-4295
NABCEP Certified PV Installation Professional
Licensed Wisconsin Master Electrician
BSEE


On Wed, Mar 29, 2023 at 9:37 AM Matt Sherald via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Hi All,
>
> I've run into a roof-mounted job where the roof is built-up with the
> following:
>
> Comp shingle
> Plywood
> Foam board
> T&G (roof deck, but also interior ceiling)
>
> The beams that hold the t&g up are wide-spaced and not convenient for
> fastening the full extent of the array.
>
> This being the case, I was considering other fastening options and am
> writing to pick the collective brain of the Wrenches to see how others have
> addressed similar situations.
>
> One thought I had was to use the PLP Easy Mounting Foot and I'd be glad
> for any opinions on that or another solution.
>
> -Matt
>
> --
> Matt Sherald
> PIMBY Energy, LLC
> 304-704-5943
>
>
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
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Re: [RE-wrenches] Attaching Array To or Through Ply

[Dave Tedeyan via RE-wrenches]

Hi Matt,
I've used these in the past when on a comp roof and there was no good way
to get into the rafters (or TJI's in this case)
https://sunmodo.com/nanomount/

You might want to replace the screws with something shorter and beefier
though to get more grip if you are only going into 1/2" plywood.

Cheers,
Dave

On Wed, Mar 29, 2023 at 10:38 AM Matt Sherald via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Hi All,
>
> I've run into a roof-mounted job where the roof is built-up with the
> following:
>
> Comp shingle
> Plywood
> Foam board
> T&G (roof deck, but also interior ceiling)
>
> The beams that hold the t&g up are wide-spaced and not convenient for
> fastening the full extent of the array.
>
> This being the case, I was considering other fastening options and am
> writing to pick the collective brain of the Wrenches to see how others have
> addressed similar situations.
>
> One thought I had was to use the PLP Easy Mounting Foot and I'd be glad
> for any opinions on that or another solution.
>
> -Matt
>
> --
> Matt Sherald
> PIMBY Energy, LLC
> 304-704-5943
>
>
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
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>
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> http://www.members.re-wrenches.org
>
>

-- 
[image: Logo] 
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com 
c: (607) 288-2898
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[RE-wrenches] Attaching Array To or Through Ply

[Matt Sherald via RE-wrenches]

Hi All,

I've run into a roof-mounted job where the roof is built-up with the
following:

Comp shingle
Plywood
Foam board
T&G (roof deck, but also interior ceiling)

The beams that hold the t&g up are wide-spaced and not convenient for
fastening the full extent of the array.

This being the case, I was considering other fastening options and am
writing to pick the collective brain of the Wrenches to see how others have
addressed similar situations.

One thought I had was to use the PLP Easy Mounting Foot and I'd be glad for
any opinions on that or another solution.

-Matt

-- 
Matt Sherald
PIMBY Energy, LLC
304-704-5943
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