On 24 July, 23:04, MrsTrellis
wrote:
harry;895281 Wrote:





On 24 July, 05:34, MrsTrellis
wrote:-
Hello. *I'm new to this forum, but am a longstanding gardening
enthusiast.

I have experienced a problem with the installation of twin-wall
polycarbonate panels in my small greenhouse, and I wondered if anyone
else has the same problem. *I was spurred on by Bunny Guinness’s
article
in The Telegraph, 10 Nov 2009, extolling the virtues of twin-wall
polycarbonate panels to replace horticultural glass. *During Spring
this
year, there were suddenly several suppliers selling polycarbonate
online
at very tempting prices. *I plunged in and bought new panels, together
with the aluminium tape and breather tape for sealing top and bottom
cut
ends respectively. *I replaced all the roof panels of my greenhouse,
and
all seemed well. *However, less than 3 months later, the breather tape
has come unstuck on all panels, allowing debris and mould to start
moving up, inside the channels.

The supplier denies hearing of anyone else having this problem.
*Please
can anyone throw any light on why this breather, ‘anti-dust’ tape has
failed to do its job?

--
MrsTrellis-

The purpose of the breather tape is to allow the air in the panels to
expand & contract but to keep insects out & drain any condensation
out. This tape is not weather proof it is intended to go beneath a
plastic trim.
I too had this problem. *I got round it by fitting weatherpoof tape to
the bottom edge and sticking a few pinholes in it.Seems to be OK at
the moment.
I had plastic trims but the snow just slides downand pushes them off.

Thanks for the replies. *So, basically, the breather tape needs
something to hold it in place. *Very irritating that the supplier's
website omitted the plastic trims in the diagrams for fitting the
panels. *There was no mention that retaining trims were required.
Can anyone suggest a safe way to clean up the channels before putting on
some new barrier? *Cotton wool 'buds' dipped in clean water?
Thanks

--
MrsTrellis- Hide quoted text -

- Show quoted text -

Hah, You have a problem there! I had to take panels off & fill them
up/soaked with bleach. Then hosed them out. Still didn't get rid of
it all. Panels only go on one way up BTW. The outside is UV
proofed. They will crack up eventually if you fit them the wrong way.