Marcom1234 said:I have read that clear helps warm the soil and gives seedlings a better start?
" There are many benefits to using a diffused plastic covering for a greenhouse.
Clear panels deliver direct light while opaque panels provide diffused light. If you want to germinate seeds and grow starters which will be transplanted outdoors, then a clear covering has the advantage of bringing full, direct light to the starter trays. This warms the soil and encourages germinating seeds to sprout and develop into a vigorous starter plants for transplanting.
If you plan on growing the plants to maturity in a greenhouse, a diffused covering has the advantage of providing even light for balanced foliage growth as well as preventing hot spots within the greenhouse."
I see the above quote everywhere while researching🤷♂️
I guess one can find just about any opinion since everyone has one. My experience tells me that diffused works just as well both in providing adequate light and warming the soil. It is the temperature of the greenhouse that warms the soil, not the sunlight. Also, with clear, you run the risk of burning tender plants; the opposite is true with diffused light. I would be interested in what you decide and your results.
I'm absolutely going all diffused. It's what my gut said but multiple sites stated the quote I posted in some form or another.
Weedwhacker said:12 mil sounds excessively heavy to me (I could certainly be wrong about this) - I have a 16x20 "high tunnel" type of GH that is covered with 6 mil greenhouse film and that was a bear to deal with! (Especially compared with the cheap 3-mil plastic film that I bought locally and used on my smaller 7x15 high tunnel...)
I'm sure someone here (Moonshadows?) knows more about this than I do - is thicker better?
I will say, though, that the "anti-condensation" feature would be really nice (assuming it actually works); I opted to not go that route (because I'm cheap) and there are times in the spring and early winter when it is literally raining inside my high tunnel!)
MoonShadows said:If going with plastic film, I recommend
Standard Clear Greenhouse Film, 6mil