What's the best greenhouse sunscreen fabric?
I What is greenhouse sunscreen fabric?
Sunscreen fabric is a way of keeping the greenhouse cool during the hotter months. It reduces the temperature inside by minimizing the amount of light passing to the greenhouse.
You might think that good ventilation is enough to keep the temperature to the optimal value, but you are forgetting about the radiant energy from the sun.
It easily builds up inside the greenhouse and increases the temperature which is dangerous for many plants. Of course, the growth of plants directly depends on the amount of sunlight, so keep shading to the minimum.
II types of sunscreen fabric for greenhouse
Today, you are most likely to find two types of shade clothes on the market: knitted and woven.
1 Knitted is constructed from the polyethylene and it looks like one continuous yarn is looped to form something similar to the tiny rows of braids.
2 Woven is made from woven polypropylene and represents multiple yarns crossing each other at right angles to create the grain, like a basket. The lifespan of the woven shade cloth is from 10 to 12 years while the knitted one lasts 7-10 years.
III Knitted VS woven sunscreen fabric
1 Knitted
a Made of lightweight polyethylene fabric
b UV resistant
c It has a longer life expectancy
d More durable and flexible
e Easy to install
2 Woven
a Made with heavier polypropylene fabric
b UV resistant
c It cannot be customized (may wear out when cut)
d Suitable for extreme winter weather
e It can also serve as a windscreen
|
Knitted Shade Cloth |
Woven Shade Cloth |
|
Made of lightweight polyethylene |
Made of 100% polypropylene |
|
Suitable for a variety of applications, including: · Shade houses · Greenhouses · Hot houses |
Suitable for a variety of applications, including: · Pet Kennels · Shading for patios · Wind screens · Privacy screens · Solar protection for plants |
|
Open lockstitch design resists wind damage, and reduces heat build-up and wind speed inside structures |
Allows more heat build-up than knitted Shade cloth |
|
Easy to install |
Heavier (Less easy to install) |
|
UV resistant |
UV Stabilized to withstand the most extreme sun exposure |
|
Edge taping not needed |
Edges must be taped to resist fraying, and will un-ravel if cut |
|
Resists most horticultural chemicals and detergents |
|
|
Longer life expectancy than woven shade cloth |
|
|
Allow for 2-3% stretch or shrinkage |
Minimal stretch or shrinkage, less than knitted |
The woven shade cloth is typically 30% heavier than knitted one, hence tends to be more expensive. Also, the lightweight knitted option is easier to install. Both types are UV resistant and can withstand the extreme sun exposures.
The woven shade cloth is only available in black color. Knitted ones come in the variety of colors. The main difference between the both options is that woven will unravel if cut.
IV What is the best sunscreen fabric for greenhouse?
The best shade cloth for greenhouse is a water resistant knitted. It will not unravel if cut ans is available in a variety of colors and percentages.
A shade cloth of 30-50% is ideal for most vegetables, however, some plants require a shade cloth of 30-60%.
A good sunscreen fabric should be water resistant to work well when it is raining or you are using an irrigation system to water your plants.
A waterproof shade cloth is made of the 90 per cent shade fabric treated with UV stabilized resin to make it water resistant.
VI Introduction for DERFLEX
DERFLEX is a professional manufacturer of . We have our own factory, which is located in Zhejiang province, China , with 7 production lines, the supply capacity is 300,000sqm/month. We can produce different kinds of wide format digital printing media. Such as coated Frontlit, backlit, laminated PVC tarpaulin, blockout,mesh,self-adhesive vinyl, one-way vision, perforate vinyl, wide format print cotton canvas, PVC coated tarpaulin, photo paper, reflective material, projection screen fabric.
Our main product is PVC tarpaulin and it is widely used as truck/trailer/container cover, tents, pallet cover,strip garden fence,
awnings, inflatable products, adumbral materials for building facility and house.
For further business communication, welcome to contact:
Tel: +8617316447897(whatsapp&wechat)
Email: ellaine@derflex.com
Web: www.derflex.com