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gbwillson

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Reply with quote  #1 
Hi gang-

Speaking from experience, I could have used the attached document below. It is a link a to a very informative brochure/catalog for the proper use and installation of multi wall polycarbonate sheets. Starting on page 14 there are a bunch of useful specs, including, proper installation and sealing and ventilation of the open ends.

Greg in MN[thumb]


pdf
 Multiwall_Poly_Installation.pdf     

mocars2

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Reply with quote  #2 
Pretty interesting Greg. What type of tape would work that we could get locally ?
cwwilson721

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Reply with quote  #3 
Might want to think of 'metallic' air-duct sealing tape. The adhesive on that should be able to handle the heat/cold.

In a pinch, good ol' Redneck Fastening Adhesive Laminate Strips ("Duct tape") also would work.. Just not as long.
gbwillson

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Like CW said, the aluminum duct tape is what I used. You can buy "kits" for sealing the ends, but they are expensive and contain a small roll of aluminum tape and a second roll that has a row of small screen vents. The vents allow condensation to escape, and keep dust and critters out. I used the same tape top and bottom, but poked little holes in the lower tape for ventilation.

Greg
cwwilson721

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Reply with quote  #5 
Quote:
Originally Posted by gbwillson
Like CW said, the aluminum duct tape is what I used. You can buy "kits" for sealing the ends, but they are expensive and contain a small roll of aluminum tape and a second roll that has a row of small screen vents. The vents allow condensation to escape, and keep dust and critters out. I used the same tape top and bottom, but poked little holes in the lower tape for ventilation.

Greg

I had to laugh...Redneck Engineering at it's true highest and finest caliber. Why buy the REAL overly high priced 'manufacturer recommended' thing, when ingenuity and stuff you have on hand will do the job?
mocars2

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Reply with quote  #6 
To keep the cost down - wouldn't a bead of caulk seal it up at a fraction of the cost of the 'metallic' air-duct sealing tape? I about had a heart attack when I saw the price of that stuff last year.
gbwillson

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Reply with quote  #7 
Mocars2-

Silicone would certainly seal the top from leaks, but would be very troublesome to remove should the need arise. Foil tape can be expensive, especially the HVAC certified rolls. But a 50 yard roll of the lighter gauge foil tape should only run you about $7 and would work just fine. 
Greg in MN[wave]

mocars2

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Reply with quote  #8 
Greg - I must have seen the expensive stuff last fall at Menards because I thought it ran about $27. We just got a Harbor Freight open up about 5 miles away and I see they have 3m 50 Yd. x 2 In. Flame Retardant Aluminum Foil Tape for $6.99 before 25% coupon. That's more in my ball park.
NYNick

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Reply with quote  #9 

I learned a dumb lesson this weekend. After making sure I had the protective plastic cover with blue writing facing the sun, I installed the Twinwall, and then removed it.
While preparing the second collector for the glazing, I discovered the 'inside' of the Twinwall has a protective clear plastic cover. Argh.

So off came the glazing from the first collector to remove the protective plastic. Argh again.

I'm just a dumb ass I guess.
Garage_Hermit

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Reply with quote  #10 
"Strange, I've Seen this Film Before..."

g_h

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