Outdoor Greenhouse roofing materials

[Mr. Green Gene]

OK, I've got a nice crop growing...10 autos and 10 photos...autos are flowering and photos are vegging out...looking good!

Enter a concern of mine...UV rays, or lack thereof. We all know that UV rays are essential for full production of THC/resin glands.

I chose a roofing material called Palruf for my grow area...clear PVC panels. In doing some research recently I have found that I might have very well picked a BAD roof material as it appears that it may block most, if not all, UV rays...f'ing bummer!

What do they use on greenhouses to allow ALL of the sun's 'rays' to get through?

Currently, I am thinking of using some light-weight (cheap) flat WHITE sheets for the 'roof' so as to allow all of the UV rays possible to come on through...but still keep my grow stealthy.

I have also considered using white plastic lattice so as to let light in but to break up the 'image' of what is below.

FWIW, I live within a few blocks of two hospitals...EMS choppers are flying around fairly regularly. I know they are trying to get their 'patient' helped...but I can't help but to think if they just looked down a bit...I'm toast...unless I'm 'covered' some way.

Suggestions??? ...and, yes, it would be nice to get some. ...PLEASE!

 

[namvet25]

roofing materials

Most greenhouses are hoop houses that ars covered with a kind of poly rolled sheeting that lets the sun rays pass through.You can maybe google green house supplies or stop by a green house in your area and ask them what they use.

 

[Mr. Green Gene]

Checking out Palruf

m'K, I went to the website of the manufacturer of Palruf and did the contact thing asking about how much UV light gets through it.

...will keep everyone up to date...promise!

 

[AutoMan]

Most greenhouse roof material actually 'diffuses' uv yet some types 'resist' ...regardless, most sheets of poly carbonate sheet used in greehhouse designs do pass most uv in a diffused form...shouldn't be a problem.......in our area, we have a large greenhouse /vegetable outfit...like 30-40 -500sq ft floorspace per bulding....their greenhouse are large half moon houses covered with very thick poly sheeting....they grow tons of stuff under that stuff...its stretched over a skeleton frame adn incurs very little wind problems... damn, always wished I could sneak a few canna among the veggies...

 

[Mr. Green Gene]

OK gang, it's official...Palruf and/or Suntuf clear panels at Home Depot, etc., filter out 100% of UV rays...NOT good for what we are 'up to'.

 

[Mr. Green Gene]

The cheap, thin, white sheets will be the new roof material for me (Wally-World, Q size, $13 ea.). They will be stretched over a center ridge and attached on both sides by rolling up the sheets on a piece of 3/4" x 3/4" fir and then screwing that batton down to the surface so as to keep the sheet taut. The sheets will reduce the light slightly more than the Palruf, but diffuse it somewhat, which is good. The sheets will also allow the roof to breathe and will make the grow WAY stealthy. Some reduction in UV rays will occur, but I'm thinking the sheet will let at least 80% pass through. Another cool effect is when it rains the drops go through the cloth and almost 'mist' as they pass through...downpours will be a bit different though.

Cheap, effective and easy...gotta love that!

 

[dwarven]

Hello there Mr. Green Gene

Unfortunately my english sucks and i don't know how to say the type of plastic that i use at my greenhouses. It's a light yellow plastic that i've used before with great results. It's not cheap as the "regular" plastic for greenhouses but it's worth it.

 

[AngelDsouza]

Greenhouses today can be a daunting task but with the right information and plans, you can decide whether to do it yourself, use a kit, design your own or a combination of methods to get the job done. Planning is the key so begin now to build a greenhouse for your new flowers and veggies.

 

[jack_cooper]

Metal roofing is also consider as Eco-friendly material. It's a green building material that is recyclable and long lasting. Aside from that, lighter colored roofs and clay roofs are also recommended to use as alternative roofing materials. These are great for saving money and good for the environment.

 

[Torched]

I have a similar polycarbonite roofing that also blocks 100% of UV. It hasn't been a problem though. Three walls are glass so maybe enough comes in via the sides to compensate?