Greenhouse/Ag Films

Buy Greenhouse/Ag Films

All greenhouses are covered in greenhouse plastic of one kind or another. The kind of greenhouse cover you choose depends on what you are growing and what you are trying to accomplish with the greenhouse film. Pro-Tect Plastics offers a variety of greenhouse plastic film that can accomplish light filtration, complete light deprivation, or temperature and moisture control to suit your needs. Growers across the country have designed greenhouse plastic systems that produce the best yields and harvests in their indoor growing areas. Whether you are a commercial grower or hobbyist, we have the greenhouse plastic sheeting that will work for you.

Thermax Condensation Control Greenhouse Plastic 
Greenhouse plastic coverings with condensation control cannot stop condensation from developing but they can control the water that does inevitably condense on the film surface. With ordinary polyethylene products, water that does condense on the film forms round droplets, which causes a host of problems for growers that ultimately impact time, yield, and cost. Condensation control greenhouse film is designed to have a high affinity for water. Condensed water no longer forms droplets but instead forms a continuous thin sheet of water over the entire film surface. 

The advantages of using Thermax condensation control film are: 

Superior strength handles years of snow and wind loads.
Water is able to drain more evenly and will flow to the lowest point of the film’s surface. 
Light transmission is significantly improved.
Reduces nighttime heat losses, maintains leaf temperatures of the plants, and increases the overall effectiveness of the thermal greenhouse film. 

Luminance Light Diffusion Greenhouse Plastic 
Light diffusion greenhouse plastic can prolong your grow season and produce higher yields. This specialized greenhouse plastic is different from light deprivation. Rather than blocking, it evens out the lighting and energy plants receive from the sun. Diffusion reduces shadows and allows the plants to receive a more even distribution of light during the day. 

Although the intensity of light at any one point in time may be lower under a diffused film, the total light transmission is excellent and the plants may actually utilize more PAR light through the course of a day, with less stress. This is due to the more even distribution of light at crop level. By eliminating shadows and spreading available energy more evenly on the leaf surface, there is less stress on the top canopy of the plant and more photosynthesis occurring in the lower canopy.

WIth light diffusion greenhouse plastic, you can expect higher crop yields. Growers reportedly experience a 30-40% increase in total crop yields. For some crops, an increase in first quality crop yield of 85% was realized!

Super 4 Greenhouse Film 
If your crops need to receive maximum light but you still need to enclose your greenhouse, Super 4 greenhouse plastic coverings will fit your needs perfectly. This greenhouse plastic sheeting provides superior strength, durability, and toughness that will withstand any environmental onslaught. It is also a high value compared to other greenhouse cover. Super 4 allows for clear, full light to enter your greenhouse without sacrificing strength. 

Qualities of Super 4 greenhouse cover include: 

Outstanding light transmission, haze, and clarity ratings that optimize yields.
Best value in greenhouse film.
Unique manufacturing process and advanced resin technology provide superior strength.
Reduced likelihood of punctures or tears at critical areas, such as folds. 

Panda Premium Light Deprivation Greenhouse Cover 
Black and white plastic sheeting is used for crop control management in a light deprivation greenhouse. The white side is highly reflective and used to direct light away. The black side is completely opaque and absorbs light, keeping heat and light away. It is also used for waterproofing and temperature control. Pro-Tect Plastics offers the Panda™ brand film for greenhouse light deprivation. 

With Panda™ Premium® sheeting you get durability and control in your light deprivation greenhouse. Our 5 mil Panda™ paper is a highly reflective and opaque black and white poly film that can be used for ground cover, wall cover, roof cover, or as a blackout curtain for photoperiod control in a garden or indoor greenhouse.
Panda™ film can be used in a variety of ways in a light deprivation greenhouse system.
Line the floor or ballasts of your grow area, using the white side to reflect light from the floor up to crops and prevent weed and other unwanted growth with the black side.
Prevent ground moisture from disturbing controlled humidity levels.
Stop soil borne pathogens from rising up into the grow area.
Control, contain, and direct runoff to available drains.
Can be used to line roof and walls of indoor growing area for additional waterproofing, lighting, and temperature control.

Using Black Plastic Mulch in a Greenhouse  
The use of plastic mulch in greenhouses has exploded in popularity. Black plastic mulch is usually used in a greenhouse for spring-seeded crops. Black plastic mulch can increase soil temperatures by about 5ºF. Black mulches absorb heat from sunlight and transfer it to the soil for a warming effect. Black plastic mulch also helps growers reduce weed growth by blocking light. At Pro-Tect Plastics, we have plastic mulch for sale that can provide better solutions to your temperature control and weed problems. 

TIP: Allow for Inflation When Installing a Greenhouse Cover 
Greenhouse film will expand and contract as temperatures increase and decrease. Typically, dimensional changes of 1 to 12 inches in length and 1 to 4 inches in width can be expected under field conditions. The actual expansion and contraction will vary with differences in black and white poly film width, gauge, formulation, and manufacturing conditions. Allow for the normal expansion and contraction of the greenhouse blackout film during installation.  Single layer greenhouse film should be installed snugly, but should not be overly tight. Double poly film installations should provide enough slack in the top layer to allow 12” to 24” of inflation.

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