Dear Friends:
I have been pursuing some answers from Solectria on what appear to be
significant defects in the design of their residential PVI series inverters.
I have finally received some final answers from them on a few issues and I
am waiting on final answers on others. Unfortunately the a
Tump,
Glad you feel you have a superior method. Please feel free to use it but
do not assume that your process is superior for others and hence infer an
alleged best practice.
Silicone does indeed react with aluminum; it bonds with it by etching the
surface. This is a good thing.
I agree with
Daniel:
Good question, and worthy of revisiting.
As a contractor and businessman, I am obligated to reduce risk exposure by
using best evolved practices. This requires I used modern, purpose-built,
approved attachment hardware. To my knowledge, these are all flashed.
No roofing contractor wi
Silicone is not a roof mastic and it does react to Alu despite your record w/
your historic installation methods. We and our industry are now in the 21st
century with 21 century requirements and many hi quality roof mastic sealants.
The way I figure it is that I am a professional solar installer
As NABCEP certified installers, the signed agreement states that; we as "Pros"
will use the IBC and other applicable codes for design & installation methods.
I will say that I loose jobs due to the additional cost of components & labor
to install flashings. It is very frustrating having my local
Jarmo, years ago Sikaflex was thought to be the best solution, unto it was
discovered that according to the manufacturer it is not compatible with asphalt
shingles and their petroleum based components.
Hopefully no one is still using it in that application.
Sincerely,
Glenn Burt
Sent from my 'sm
This started as an asphalt shingle attachment discussion, so it's important
to note that many of the sealants from Sika are NOT compatible with
asphaltic/bitumunous surfaces. Many competitors are still using products
from this company that are specifically noted by the manufacturer as not
compatibl
Hi fellow Wrenches,
Flashing -
We have ~30 years experience with ~700 systems dating back to 1980 here in
the Northeast primarily on asphalt shingles.
Standard attachment method on these historic systems and currently for us
is a lagged foot bedded in silicone. We've seen no leaks including the
I'm with Jason. Even though for years we installed without flashing, we
now use it on every job. It is code and besides, why take the chance? We
use Snap N Rack flashing very successfully in Maine, where snow, ice, rain
and large heat/cold expansion/contractions make flashing a great
insurance. On
Hi:
People may already know about this, but I thought I would pass it on in
case some dont.
We do a lot of work with the boating and RV industry in the US and
overseas.
One sealant name which has come up a lot with strong positive reviews
regarding age related drying/shrinking not only in the
40+ years of experience from the solar pool industry shows that shingle
roof attachments without flashing with proper sealant and methods can be
very successful. Typical pool heating systems involve 50+ attachments done
without flashing. BUT, that experience is primarily based on two things
that di
Daniel,
My answer is to flash until others prove me wrong.
I am in the same position you are, speaking to the same manufacturers you
are, and probably dealing with the same low competitor pricing you are.
These products sure sound tempting.
Over the past decade I have probably removed a dozen 8
Writing the subject above, it seems like I've heard this question on the
wrench list before, but I could not find it in my old email archives. Feel
free to pint me back to the old discussion if it's there.
I've been using a flashing based roof attachment for 8+yrs now (quick mount
or similar).
13 matches
Mail list logo
