Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread Bill Hoffer
Don
Actually Very High Bond (VHB) foam tapes are incredibly strong and if
formulated for glass, will work quite well.  They have been using it for
decades to mount heavy glass and aluminum panels on curtain walls on sky
scrapers.  I would trust it totally as long as it was not bought  at
HomeDepot.  I have tested it with heavy loads and the aluminum frame failed
before the tape and glass module!

Bill

Bill
On May 30, 2013 7:58 PM,  wrote:

> I would not trust adhesive on the backs of panels for decades. This would
> be especially a concern with tiltups or ground mounts where there is more
> wind loading.
> When mounting some frameless BP modules I made some 4-inch long edge
> moldings of slotted hard foam called SeaFoam that is sold (but not
> manufactured) by Tap Plastics.
> Then they were compatible with standard bolt-down edge-  and mid-clamps.
> Don Barch
> Energy Solar
>
> On 5/30/2013 4:14 PM, Todd Cory wrote:
> wrenches,
>
> i have a customer who purchased 20 used astropower ap75 modules. they are
> frameless and appear to have been previously mounted using four, 2" wide X
> 10" long strips of blue rigid foam, glued to the back of each module with
> some kind of adhesive.
>
> two questions:
>
> this seems to be a reasonable mounting system id like to repeat. would
> anyone familiar with this kind of mounting technique be willing to
> comment/speculate on an adhesive that would not degrade the tedlar
> backsheet? whatever was previously used worked great.
>
> what kind of flat/smooth mounting surface would folks suggest the other
> side of the blue foam be attached to? the only thing i can think of is
> plywood, but that would rot over time.
>
> thanks,
>
> todd
>
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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread don
I would not trust adhesive on the backs of panels for decades. This would be especially a concern with tiltups or ground mounts where there is more wind loading. When mounting some frameless BP modules I made some 4-inch long edge moldings of slotted hard foam called SeaFoam that is sold (but not manufactured) by Tap Plastics. Then they were compatible with standard bolt-down edge-  and mid-clamps.Don BarchEnergy SolarOn 5/30/2013 4:14 PM, Todd Cory wrote:
wrenches,

 i have a customer who purchased 20 used astropower ap75   
modules. they are frameless and appear to have been previously  
 mounted using four, 2" wide X 10" long strips of blue rigid   
foam, glued to the back of each module with some kind of   
adhesive.

 two questions:

 this seems to be a reasonable mounting system id like to   
repeat. would anyone familiar with this kind of mounting   
technique be willing to comment/speculate on an adhesive that   
would not degrade the tedlar backsheet? whatever was   
previously used worked great.

 what kind of flat/smooth mounting surface would folks suggest  
 the other side of the blue foam be attached to? the only thing 
  i can think of is plywood, but that would rot over time.

 thanks,

 todd
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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread Wallace W. Weeks
Haticon would be another option.

Sent from W.W.W'S iPhone

On May 30, 2013, at 4:41 PM, Chris Mason  wrote:

> Schletter makes those clamps.
> 
> 
> On Thu, May 30, 2013 at 7:25 PM, Exeltech  wrote:
>> 
>> I've seen rack "edge clamps" for frameless PV advertised, but didn't make a
>> mental note of made by whom, or where I saw the ad.  I *do* recall the clamps
>> were intended to be located along the long edges, not the ends.  Otherwise,
>> expansion/contraction would stress/break the glass.
>> 
>> There's a wealth of knowledge and know-how here.  Someone with the answer
>> will chime in.
>> 
>> 
>> Dan
>> 
>> --- On Thu, 5/30/13, toddc...@finestplanet.com  
>> wrote:
>> 
>> From: toddc...@finestplanet.com 
>> 
>> Subject: Re: [RE-wrenches] used panel mount questions
>> To: "RE-wrenches" 
>> Date: Thursday, May 30, 2013, 6:06 PM
>> 
>> 
>> good point dan... i wonder how frameless modules are intended to be mounted?
>>  
>> todd
>>  
>>  
>>  
>>  
>> On Thursday, May 30, 2013 4:00pm, "Exeltech"  said:
>> 
>> I agree with Allen, and would like to add a related comment.  Foam boards are
>> thermally insulative in nature.  If affixed to the PV with adhesive, they 
>> would
>> cause the PV module to run hotter than if the backsheet was fully exposed
>> to the air.
>> 
>> This results in reduced energy output under all conditions, and increased
>> thermal stresses on the PV cells, internal buss, bonds, and other aspects
>> of the PV.
>> 
>> 
>> Dan
>> 
>> 
>> --- On Thu, 5/30/13, Allan Sindelar  wrote:
>> 
>> From: Allan Sindelar 
>> Subject: Re: [RE-wrenches] used panel mount questions
>> To: "RE-wrenches" 
>> Date: Thursday, May 30, 2013, 5:46 PM
>> 
>> 
>> Todd,
>> I don't have your answers, only the caution that "blue foam" to many of us 
>> with a construction background means extruded polystyrene or "blueboard", 
>> commonly used around foundations. It deteriorates with exposure to sunlight, 
>> so could only be used in an application such as this if protected from UV.
>> Allan
>> 
>> Allan Sindelar
>> al...@positiveenergysolar.com
>> NABCEP Certified Photovoltaic Installer
>> NABCEP Certified Technical Sales Professional
>> New Mexico EE98J Journeyman Electrician
>> Founder and Chief Technology Officer
>> Positive Energy, Inc.
>> 3209 Richards Lane (note new address)
>> Santa Fe, New Mexico 87507
>> 505 424-1112
>> www.positiveenergysolar.com
>> 
>> 
>> On 5/30/2013 4:14 PM, Todd Cory wrote:
>> wrenches,
>> 
>> i have a customer who purchased 20 used astropower ap75 modules. they are 
>> frameless and appear to have been previously mounted using four, 2" wide X 
>> 10" long strips of blue rigid foam, glued to the back of each module with 
>> some kind of adhesive.
>> 
>> two questions:
>> 
>> this seems to be a reasonable mounting system id like to repeat. would 
>> anyone familiar with this kind of mounting technique be willing to 
>> comment/speculate on an adhesive that would not degrade the tedlar 
>> backsheet? whatever was previously used worked great.
>> 
>> what kind of flat/smooth mounting surface would folks suggest the other side 
>> of the blue foam be attached to? the only thing i can think of is plywood, 
>> but that would rot over time.
>> 
>> thanks,
>> 
>> todd
>> 
>> 
>> 
>> 
>> ___ List sponsored by Home Power 
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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread Chris Mason
Schletter makes those clamps.


On Thu, May 30, 2013 at 7:25 PM, Exeltech  wrote:

> I've seen rack "edge clamps" for frameless PV advertised, but didn't make a
> mental note of made by whom, or where I saw the ad.  I *do* recall the
> clamps
> were intended to be located along the long edges, not the ends.  Otherwise,
> expansion/contraction would stress/break the glass.
>
> There's a wealth of knowledge and know-how here.  Someone with the answer
> will chime in.
>
>
> Dan
>
> --- On *Thu, 5/30/13, toddc...@finestplanet.com  >* wrote:
>
>
> From: toddc...@finestplanet.com 
>
> Subject: Re: [RE-wrenches] used panel mount questions
> To: "RE-wrenches" 
> Date: Thursday, May 30, 2013, 6:06 PM
>
>
> good point dan... i wonder how frameless modules are intended to be
> mounted?
>
>
>
> todd
>
>
>
>
>
>
>
>
>
> On Thursday, May 30, 2013 4:00pm, "Exeltech"  said:
>
>   I agree with Allen, and would like to add a related comment.  Foam
> boards are
> thermally insulative in nature.  If affixed to the PV with adhesive, they
> would
> cause the PV module to run hotter than if the backsheet was fully exposed
> to the air.
>
> This results in reduced energy output under all conditions, and increased
> thermal stresses on the PV cells, internal buss, bonds, and other aspects
> of the PV.
>
>
> Dan
>
>
> --- On *Thu, 5/30/13, Allan Sindelar *wrote:
>
>
> From: Allan Sindelar 
> Subject: Re: [RE-wrenches] used panel mount questions
> To: "RE-wrenches" 
> Date: Thursday, May 30, 2013, 5:46 PM
>
>
>  Todd,
> I don't have your answers, only the caution that "blue foam" to many of us
> with a construction background means extruded polystyrene or "blueboard",
> commonly used around foundations. It deteriorates with exposure to
> sunlight, so could only be used in an application such as this if protected
> from UV.
> Allan
>
> *Allan Sindelar*
> al...@positiveenergysolar.com
> NABCEP Certified Photovoltaic Installer
> NABCEP Certified Technical Sales Professional
> New Mexico EE98J Journeyman Electrician
> Founder and Chief Technology Officer
> *Positive Energy, Inc.*
> 3209 Richards Lane (note new address)
> Santa Fe, New Mexico 87507
> *505 424-1112*
> www.positiveenergysolar.com
>
> *
> *
>
> On 5/30/2013 4:14 PM, Todd Cory wrote:
>
> wrenches,
>
> i have a customer who purchased 20 used astropower ap75 modules. they are
> frameless and appear to have been previously mounted using four, 2" wide X
> 10" long strips of blue rigid foam, glued to the back of each module with
> some kind of adhesive.
>
> two questions:
>
> this seems to be a reasonable mounting system id like to repeat. would
> anyone familiar with this kind of mounting technique be willing to
> comment/speculate on an adhesive that would not degrade the tedlar
> backsheet? whatever was previously used worked great.
>
> what kind of flat/smooth mounting surface would folks suggest the other
> side of the blue foam be attached to? the only thing i can think of is
> plywood, but that would rot over time.
>
> thanks,
>
> todd
>
>
>
>
> ___ List sponsored by Home
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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread jay peltz
Hi Dan,

Schletter solar has some.

under their Laminate modules and accessories section.

jay

peltz power


On May 30, 2013, at 4:25 PM, Exeltech wrote:

> I've seen rack "edge clamps" for frameless PV advertised, but didn't make a
> mental note of made by whom, or where I saw the ad.  I *do* recall the clamps
> were intended to be located along the long edges, not the ends.  Otherwise,
> expansion/contraction would stress/break the glass.
> 
> There's a wealth of knowledge and know-how here.  Someone with the answer
> will chime in.
> 
> 
> Dan
> 
> --- On Thu, 5/30/13, toddc...@finestplanet.com  
> wrote:
> 
> From: toddc...@finestplanet.com 
> Subject: Re: [RE-wrenches] used panel mount questions
> To: "RE-wrenches" 
> Date: Thursday, May 30, 2013, 6:06 PM
> 
> good point dan... i wonder how frameless modules are intended to be mounted?
>  
> todd
>  
>  
>  
>  
> On Thursday, May 30, 2013 4:00pm, "Exeltech"  said:
> 
> I agree with Allen, and would like to add a related comment.  Foam boards are
> thermally insulative in nature.  If affixed to the PV with adhesive, they 
> would
> cause the PV module to run hotter than if the backsheet was fully exposed
> to the air.
> 
> This results in reduced energy output under all conditions, and increased
> thermal stresses on the PV cells, internal buss, bonds, and other aspects
> of the PV.
> 
> 
> Dan
> 
> 
> --- On Thu, 5/30/13, Allan Sindelar  wrote:
> 
> From: Allan Sindelar 
> Subject: Re: [RE-wrenches] used panel mount questions
> To: "RE-wrenches" 
> Date: Thursday, May 30, 2013, 5:46 PM
> 
> 
> Todd,
> I don't have your answers, only the caution that "blue foam" to many of us 
> with a construction background means extruded polystyrene or "blueboard", 
> commonly used around foundations. It deteriorates with exposure to sunlight, 
> so could only be used in an application such as this if protected from UV.
> Allan
> 
> Allan Sindelar
> al...@positiveenergysolar.com
> NABCEP Certified Photovoltaic Installer
> NABCEP Certified Technical Sales Professional
> New Mexico EE98J Journeyman Electrician
> Founder and Chief Technology Officer
> Positive Energy, Inc.
> 3209 Richards Lane (note new address)
> Santa Fe, New Mexico 87507
> 505 424-1112
> www.positiveenergysolar.com
> 
> 
> On 5/30/2013 4:14 PM, Todd Cory wrote:
> wrenches,
> 
> i have a customer who purchased 20 used astropower ap75 modules. they are 
> frameless and appear to have been previously mounted using four, 2" wide X 
> 10" long strips of blue rigid foam, glued to the back of each module with 
> some kind of adhesive.
> 
> two questions:
> 
> this seems to be a reasonable mounting system id like to repeat. would anyone 
> familiar with this kind of mounting technique be willing to comment/speculate 
> on an adhesive that would not degrade the tedlar backsheet? whatever was 
> previously used worked great.
> 
> what kind of flat/smooth mounting surface would folks suggest the other side 
> of the blue foam be attached to? the only thing i can think of is plywood, 
> but that would rot over time.
> 
> thanks,
> 
> todd
> 
> 
> 
> 
> ___ List sponsored by Home Power 
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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread Exeltech
I've seen rack "edge clamps" for frameless PV advertised, but didn't make a
mental note of made by whom, or where I saw the ad.  I *do* recall the clamps
were intended to be located along the long edges, not the ends.  Otherwise,
expansion/contraction would stress/break the glass.

There's a wealth of knowledge and know-how here.  Someone with the answer
will chime in.


Dan

--- On Thu, 5/30/13, toddc...@finestplanet.com  
wrote:

From: toddc...@finestplanet.com 
Subject: Re: [RE-wrenches] used panel mount questions
To: "RE-wrenches" 
Date: Thursday, May 30, 2013, 6:06 PM

good point dan... i wonder how frameless modules are intended to be mounted?
 
todd
 
 
 
 
On Thursday, May 30, 2013 4:00pm, "Exeltech"  said:






I agree with Allen, and would like to add a related comment.  Foam boards are
thermally insulative in nature.  If affixed to the PV with adhesive, they would
cause the PV module to run hotter than if the backsheet was fully exposed
to the air.

This results in reduced energy output under all conditions, and increased
thermal stresses on the PV cells, internal buss, bonds, and other aspects
of the PV.


Dan


--- On Thu, 5/30/13, Allan Sindelar  wrote:


From: Allan Sindelar 
Subject: Re: [RE-wrenches] used panel mount questions
To: "RE-wrenches" 
Date: Thursday, May 30, 2013,  5:46 PM





Todd,
 I don't have your answers, only the caution that "blue foam" to   many of 
us with a construction background means extruded   polystyrene or 
"blueboard", commonly used around foundations. It   deteriorates with 
exposure to sunlight, so could only be used in   an application such as 
this if protected from UV.
 Allan


Allan Sindelar
al...@positiveenergysolar.com
NABCEP Certified Photovoltaic Installer
 NABCEP Certified Technical Sales Professional
 New Mexico EE98J Journeyman Electrician
 Founder and Chief Technology Officer
Positive Energy, Inc.
 3209 Richards Lane (note new address)
 Santa Fe, New Mexico 87507
505 424-1112
www.positiveenergysolar.com
 



On 5/30/2013 4:14 PM, Todd Cory wrote:
wrenches,

 i have a customer who purchased 20 used astropower ap75   modules. 
they are frameless and appear to have been previously   mounted using 
four, 2" wide X 10" long strips of blue rigid   foam, glued to the back 
of each module with some kind of   adhesive.

 two questions:

 this seems to be a reasonable mounting system id like to   repeat. 
would anyone familiar with this kind of mounting   technique be willing 
to comment/speculate on an adhesive that   would not degrade the tedlar 
backsheet? whatever was   previously used worked great.

 what kind of flat/smooth mounting surface would folks suggest   the 
other side of the blue foam be attached to? the only thing   i can 
think of is plywood, but that would rot over time.

 thanks,

 todd


 
 

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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread toddcory

good point dan... i wonder how frameless modules are intended to be mounted?
 
todd
 
 
 
 
On Thursday, May 30, 2013 4:00pm, "Exeltech"  said:




I agree with Allen, and would like to add a related comment.  Foam boards are
thermally insulative in nature.  If affixed to the PV with adhesive, they would
cause the PV module to run hotter than if the backsheet was fully exposed
to the air.

This results in reduced energy output under all conditions, and increased
thermal stresses on the PV cells, internal buss, bonds, and other aspects
of the PV.


Dan


--- On Thu, 5/30/13, Allan Sindelar  wrote:

From: Allan Sindelar 
Subject: Re: [RE-wrenches] used panel mount questions
To: "RE-wrenches" 
Date: Thursday, May 30, 2013,  5:46 PM





Todd,
 I don't have your answers, only the caution that "blue foam" to   many of 
us with a construction background means extruded   polystyrene or 
"blueboard", commonly used around foundations. It   deteriorates with 
exposure to sunlight, so could only be used in   an application such as 
this if protected from UV.
 Allan


Allan Sindelar
[/mc/compose?to=al...@positiveenergysolar.com] al...@positiveenergysolar.com
NABCEP Certified Photovoltaic Installer
 NABCEP Certified Technical Sales Professional
 New Mexico EE98J Journeyman Electrician
 Founder and Chief Technology Officer
Positive Energy, Inc.
 3209 Richards Lane (note new address)
 Santa Fe, New Mexico 87507
505 424-1112
[http://www.positiveenergysolar.com/] www.positiveenergysolar.com
 

On 5/30/2013 4:14 PM, Todd Cory wrote:wrenches,

 i have a customer who purchased 20 used astropower ap75   modules. 
they are frameless and appear to have been previously   mounted using 
four, 2" wide X 10" long strips of blue rigid   foam, glued to the back 
of each module with some kind of   adhesive.

 two questions:

 this seems to be a reasonable mounting system id like to   repeat. 
would anyone familiar with this kind of mounting   technique be willing 
to comment/speculate on an adhesive that   would not degrade the tedlar 
backsheet? whatever was   previously used worked great.

 what kind of flat/smooth mounting surface would folks suggest   the 
other side of the blue foam be attached to? the only thing   i can 
think of is plywood, but that would rot over time.

 thanks,

 todd


 
 

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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread Exeltech
I agree with Allen, and would like to add a related comment.  Foam boards are
thermally insulative in nature.  If affixed to the PV with adhesive, they would
cause the PV module to run hotter than if the backsheet was fully exposed
to the air.

This results in reduced energy output under all conditions, and increased
thermal stresses on the PV cells, internal buss, bonds, and other aspects
of the PV.


Dan


--- On Thu, 5/30/13, Allan Sindelar  wrote:

From: Allan Sindelar 
Subject: Re: [RE-wrenches] used panel mount questions
To: "RE-wrenches" 
Date: Thursday, May 30, 2013, 5:46 PM



  


  
  
Todd,

  I don't have your answers, only the caution that "blue foam" to
  many of us with a construction background means extruded
  polystyrene or "blueboard", commonly used around foundations. It
  deteriorates with exposure to sunlight, so could only be used in
  an application such as this if protected from UV.

  Allan

  

  


Allan Sindelar

al...@positiveenergysolar.com

  NABCEP Certified Photovoltaic
Installer

NABCEP Certified Technical Sales Professional

New Mexico EE98J Journeyman Electrician

Founder and Chief Technology Officer

Positive Energy, Inc.

3209 Richards Lane (note new address)

Santa Fe, New Mexico 87507

505 424-1112

www.positiveenergysolar.com 






 
  On 5/30/2013 4:14 PM, Todd Cory wrote:



  
  wrenches,

  

  i have a customer who purchased 20 used astropower ap75
  modules. they are frameless and appear to have been previously
  mounted using four, 2" wide X 10" long strips of blue rigid
  foam, glued to the back of each module with some kind of
  adhesive.

  

  two questions:

  

  this seems to be a reasonable mounting system id like to
  repeat. would anyone familiar with this kind of mounting
  technique be willing to comment/speculate on an adhesive that
  would not degrade the tedlar backsheet? whatever was
  previously used worked great.

  

  what kind of flat/smooth mounting surface would folks suggest
  the other side of the blue foam be attached to? the only thing
  i can think of is plywood, but that would rot over time.

  

  thanks,

  

  todd

  

  

 

  
  

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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread jay peltz
Hi Allan and Todd.

these modules sound like the ones that Powerlight used back many years ago.

These modules were mounted flat with the blue foam as insulation/mounting.

the concept while pretty cool at first look didn't work out.

Not sure what to tell you about what/how to mount them too however.

jay

peltz power
On May 30, 2013, at 3:46 PM, Allan Sindelar wrote:

> Todd,
> I don't have your answers, only the caution that "blue foam" to many of us 
> with a construction background means extruded polystyrene or "blueboard", 
> commonly used around foundations. It deteriorates with exposure to sunlight, 
> so could only be used in an application such as this if protected from UV.
> Allan
> 
> Allan Sindelar
> al...@positiveenergysolar.com
> NABCEP Certified Photovoltaic Installer
> NABCEP Certified Technical Sales Professional
> New Mexico EE98J Journeyman Electrician
> Founder and Chief Technology Officer
> Positive Energy, Inc.
> 3209 Richards Lane (note new address)
> Santa Fe, New Mexico 87507
> 505 424-1112
> www.positiveenergysolar.com
> 
> 
> 
> On 5/30/2013 4:14 PM, Todd Cory wrote:
>> wrenches,
>> 
>> i have a customer who purchased 20 used astropower ap75 modules. they are 
>> frameless and appear to have been previously mounted using four, 2" wide X 
>> 10" long strips of blue rigid foam, glued to the back of each module with 
>> some kind of adhesive.
>> 
>> two questions:
>> 
>> this seems to be a reasonable mounting system id like to repeat. would 
>> anyone familiar with this kind of mounting technique be willing to 
>> comment/speculate on an adhesive that would not degrade the tedlar 
>> backsheet? whatever was previously used worked great.
>> 
>> what kind of flat/smooth mounting surface would folks suggest the other side 
>> of the blue foam be attached to? the only thing i can think of is plywood, 
>> but that would rot over time.
>> 
>> thanks,
>> 
>> todd
>> 
>> 
>> 
>> 
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Re: [RE-wrenches] used panel mount questions

2013-05-30 Thread Allan Sindelar

  
  
Todd,
  I don't have your answers, only the caution that "blue foam" to
  many of us with a construction background means extruded
  polystyrene or "blueboard", commonly used around foundations. It
  deteriorates with exposure to sunlight, so could only be used in
  an application such as this if protected from UV.
  Allan
  
  


Allan Sindelar
al...@positiveenergysolar.com
  NABCEP Certified Photovoltaic
Installer
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Founder and Chief Technology Officer
Positive Energy, Inc.
3209 Richards Lane (note new address)
Santa Fe, New Mexico 87507
505 424-1112
www.positiveenergysolar.com



 
  On 5/30/2013 4:14 PM, Todd Cory wrote:


  
  wrenches,
  
  i have a customer who purchased 20 used astropower ap75
  modules. they are frameless and appear to have been previously
  mounted using four, 2" wide X 10" long strips of blue rigid
  foam, glued to the back of each module with some kind of
  adhesive.
  
  two questions:
  
  this seems to be a reasonable mounting system id like to
  repeat. would anyone familiar with this kind of mounting
  technique be willing to comment/speculate on an adhesive that
  would not degrade the tedlar backsheet? whatever was
  previously used worked great.
  
  what kind of flat/smooth mounting surface would folks suggest
  the other side of the blue foam be attached to? the only thing
  i can think of is plywood, but that would rot over time.
  
  thanks,
  
  todd
  
  
 
  
  
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[RE-wrenches] used panel mount questions

2013-05-30 Thread Todd Cory


  
  
wrenches,

i have a customer who purchased 20 used astropower ap75 modules.
they are frameless and appear to have been previously mounted
using four, 2" wide X 10" long strips of blue rigid foam, glued
to the back of each module with some kind of adhesive.

two questions:

this seems to be a reasonable mounting system id like to repeat.
would anyone familiar with this kind of mounting technique be
willing to comment/speculate on an adhesive that would not
degrade the tedlar backsheet? whatever was previously used
worked great.

what kind of flat/smooth mounting surface would folks suggest
the other side of the blue foam be attached to? the only thing i
can think of is plywood, but that would rot over time.

thanks,

todd


  
  

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