Early on I learned to fill the pre drilled hole with a non asphalt eating caulk like geo cell (Or something similar), and then used two layers of a polybutyl tape and stainless hardware. The trick is not to lag down the L-feet so tight that it smooshes out all the poly. You also need to be real car
We have used a variety of sealants over the years, and determined simple
Henry roofing cement is the best product for use on comp roofing.
We also used to bend our own L-foot flashing, which we cut from standard Al
coil stock (before all the manufactured options were available). This might
be a
I have had the opportunity in the past few years to learn a lot about good
roofing waterproofing practices according to the national roofers association.
They don't agree that caulk works as the primary means of sealant, which is
what you are doing with an L foot.
And given that we have really
If you have to go down this road of not using flashed penetrations, be very
diligent.
Dan makes a couple of great points make sure the sealant you use is
compatible (and a superior product) for the roof type you are working on,
don't over tighten as that will just damage the shingle further and d
Just got talked into buying Crown (395Ah@20Hr) as my local rep, "the battery
expert", was persuasive in his testimony to their reliability. Should've
consulted wrenches first.
Should I be worried??
Eric Stikes
SunHarvest Solar
+1 (530) 798 - 3738
www.harvesthesun.com
Wrenches,
It has come to my attention that there is a proposed code rule for Section 50
(photovoltaics) of the CE Code (Canada's electrical code book) that wants to
see all PV wires protected from potential rodent damage.
It is suggesting that "all" PV wires be protected in conduit, even under
Let me correct myself here...
I don't believe that the proposal is suggesting that PV wire specifically be in
conduit, but that it is protected (by whatever means) from rodents.
Thanks,
benn
Sent from a 'smart' phone, with tiny keys. Please excuse shortcuts and typos.
On 2012-06-29, at 11:25 A
Hi Jay,
There is no room for flashings. The L feet will go very close to the
skylights and the flashing would hit the edge of them. Plus there
is an existing array that was done by another installer that is done
with L feet only. The new array would be higher.
And given that we have rea
We have had less than stellar performance out of the Crown L-16's that we
installed 4 to 5 years ago. Premature failure is my experience. About 60% of
the cycle life compared to Trojan L-16's and also Surrette/Rolls. I've been
using those since 1985.
Back to using Trojan. Specifically RE-B's ei
Drake,
This won't help with the height issue, but maybe you could trim the flashing
where it is close to the skylights?
Or is it possible to access the underside of the roof beside the skylight so
you can add a spanner btwn the rafters so you can have room for the flashing?
No answer for the h
Would it be possible/reasonable to add flashed mounts to the existing array?
Jesse
Sent from my iPhone
On Jun 29, 2012, at 2:42 PM, Benn At DayStarSolar wrote:
> Drake,
> This won't help with the height issue, but maybe you could trim the flashing
> where it is close to the skylights?
> O
Over 20 years experience with them says you can't go wring with Trojan!
Jonathan Hill, senior system engineer and founder
Sierra Solar Systems
563C Idaho Maryland Road
Grass Valley, CA 95945
Celebrating our 32nd year in solar!
tech info and foreign orders: (530) 273-6754
order line: (888) ON-SOL
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