20 Best Blackout Fabric Greenhouse [2024]

Are you looking for the best Blackout Fabric Greenhouse? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Blackout Fabric Greenhouse.

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# Preview Product
1 ColourTree 8' x 50' Black Fence Privacy Screen Windscreen Cover Fabric Shade Tarp Plant Greenhouse... ColourTree 8' x 50' Black Fence Privacy Screen Windscreen Cover Fabric Shade Tarp Plant...
2 Rose Home Fashion Thermal Insulated Blackout Curtain Liner Panel-Ring Included- Curtain Liner 100%... Rose Home Fashion Thermal Insulated Blackout Curtain Liner Panel-Ring Included- Curtain Liner...
3 1 Yard 60' Wide Black Premium Cotton Blend Broadcloth Fabric 1 Yard 60" Wide Black Premium Cotton Blend Broadcloth Fabric
4 NICETOWN White Blackout Curtain Liners for Window - Noise Reducing Light Blocking Liner for 84 inch... NICETOWN White Blackout Curtain Liners for Window - Noise Reducing Light Blocking Liner for 84...
5 Amazon Basics Portable Window Blackout Curtain Shade with Suction Cups for Travel, Kids, and Baby... Amazon Basics Portable Window Blackout Curtain Shade with Suction Cups for Travel, Kids, and Baby...
6 NICETOWN 100% Blackout Window Curtain Panels, Heat and Full Light Blocking Drapes with Black Liner... NICETOWN 100% Blackout Window Curtain Panels, Heat and Full Light Blocking Drapes with Black...
7 Blackout Drapery Fabric Color: Black, 3 Pass Blackout Fabric, Blackout 99% of Light, 56' Wide, Sold... Blackout Drapery Fabric Color: Black, 3 Pass Blackout Fabric, Blackout 99% of Light, 56" Wide,...
8 DREAM ART Anywhere Portable Blackout Curtain/Adjustable Blackout Shades/Temporary Blackout Blinds... DREAM ART Anywhere Portable Blackout Curtain/Adjustable Blackout Shades/Temporary Blackout Blinds...
9 NICETOWN Black Blackout Curtain Blinds - Solid Thermal Insulated Window Treatment Blackout... NICETOWN Black Blackout Curtain Blinds - Solid Thermal Insulated Window Treatment Blackout...
10 VIVOSUN S448 4x4 Grow Tent, 48'x48'x80' High Reflective Mylar with Observation Window and Floor Tray... VIVOSUN S448 4x4 Grow Tent, 48"x48"x80" High Reflective Mylar with Observation Window and Floor...
11 Home-Complete HC-4202 Walk-In Greenhouse- Indoor Outdoor with 8 Sturdy Shelves-Grow Plants,... Home-Complete HC-4202 Walk-In Greenhouse- Indoor Outdoor with 8 Sturdy Shelves-Grow Plants,...
12 Mutual WF200 Polyethylene Woven Geotextile Fabric, 300' Length x 6' Width Mutual WF200 Polyethylene Woven Geotextile Fabric, 300' Length x 6' Width
13 DearHouse Balcony Privacy Screen Cover, 3.5ft x16.5ft Privacy Screen Balcony Shield for Porch Deck... DearHouse Balcony Privacy Screen Cover, 3.5ft x16.5ft Privacy Screen Balcony Shield for Porch...
14 ECOgardener Premium 5oz Pro Garden Weed Barrier Landscape Fabric Durable & Heavy-Duty Weed Block... ECOgardener Premium 5oz Pro Garden Weed Barrier Landscape Fabric Durable & Heavy-Duty Weed Block...
15 Hanes Drapery Lining Blackout Eclipse White, Fabric by the Yard Hanes Drapery Lining Blackout Eclipse White, Fabric by the Yard
16 KGORGE Blackout Curtain Liners - Sun Light / Heat Blocking Liner Drapes, Blackout Lined for L 84'... KGORGE Blackout Curtain Liners - Sun Light / Heat Blocking Liner Drapes, Blackout Lined for L 84"...
17 EAGLE PEAK 8'x6' Portable Walk-in Greenhouse Instant Pop-up Indoor Outdoor Plant Gardening Green... EAGLE PEAK 8'x6' Portable Walk-in Greenhouse Instant Pop-up Indoor Outdoor Plant Gardening Green...
18 Ohuhu Mini Greenhouse for Indoor Outdoor, Small Plastic Plant Greenhouses 4-Tier Rack Plant Stand... Ohuhu Mini Greenhouse for Indoor Outdoor, Small Plastic Plant Greenhouses 4-Tier Rack Plant Stand...
19 LIFEI Upgraded Portable Blackout Shades, Travel Blackout Curtains, Temporary Blackout Blinds, Clever... LIFEI Upgraded Portable Blackout Shades, Travel Blackout Curtains, Temporary Blackout Blinds,...
20 HOOPLE 5oz Weed Barrier Fabric, Garden Landscape Fabric, Durable & Heavy Duty Weed Block Gardening... HOOPLE 5oz Weed Barrier Fabric, Garden Landscape Fabric, Durable & Heavy Duty Weed Block...
SaleBestseller No. 1
ColourTree 8' x 50' Black Fence Privacy Screen Windscreen Cover Fabric Shade Tarp Plant Greenhouse...
  • ★【Virgin, UV Stabilized Compounds & Thick Material】: Actual height is 7' 9", fits perfectly on 8 footer fence. The only fence screen product on...
  • ★【Privacy Solution 90% Visibility Blockage】: Most economical way for privacy over chain link fence, porous decorative concealment, existing...
  • ★【Comes with the Extra Stainless Grommets and Reinforced Binding】: Grommets are made of stainless copper, each corner has 4 grommets (compares...
  • ★【Can be Used as Shades or Greenhouse Solution】: Can be used there are lots of different ways to use: protection for vegetable garden plants,...
  • ★【3 Years Warranty】: Limited 3 years warranty under normal usage and weather. Free consultation. All ColourTree brand products come with...
Bestseller No. 2
Rose Home Fashion Thermal Insulated Blackout Curtain Liner Panel-Ring Included- Curtain Liner 100%...
  • Ready To Hang - Package includes 2 panels Blackout Curtain Liners, bonus drapery Rings. Fit curtain 84" length.
  • Innovative fabric - 100% NONE chemicals Smell, We care about you.
  • Blackout Liner - Blackout layer Blocks out up to 99% of light.
  • Insulated - Help your curtain keep the heat and cold out.
  • Easy Care - Machine Wash and Dry. PLEASE NOTE: This product is meant for Indoor use only.
SaleBestseller No. 3
1 Yard 60" Wide Black Premium Cotton Blend Broadcloth Fabric
  • Amazon Prime will ship ONLY 1 YARD CUTS
  • Vendor will ship CONTINUOUS YARDS. Please be sure if you want to purchase through Amazon Prime or Vendor.
Bestseller No. 4
NICETOWN White Blackout Curtain Liners for Window - Noise Reducing Light Blocking Liner for 84 inch...
  • READY MADE: Package includes 2 panels Blackout Curtain Liners, bonus drapery hooks. Each panel measures 27" wide when it is flat. It is recommended to...
  • AMAZING FABRIC: The blackout liners' material is super soft and heavily innovative triple-weave polyester fabric. High performance on 85%-99% light...
  • ENERGY SMART: Triple weave blackout fabric balances room temperature by insulating against summer heat and winter chill. Protect your furniture,...
  • UNIQUE DESIGN: You can not only attach to your existing curtain panel with drapery hooks included (Not rip through thin curtains) but also used as...
  • EASY CARE: Good quality finishing will withstand years of use. Machine washable and Wash the water temperature below 86F. Mild detergent no bleaching....
SaleBestseller No. 5
Amazon Basics Portable Window Blackout Curtain Shade with Suction Cups for Travel, Kids, and Baby...
  • Blocks out sunlight and harmful UV rays, reduces outside noise, and ensures total privacy; creates energy-saving insulating barrier against heat and...
  • Velcro edges allow for customizing the dimensions of the curtain, to fit to various window sizes while on the go
  • Suction cups affix to the window for easy installation; cannot be mounted to a curtain rod; be sure window is clean and suction cups are dry before...
  • Made of 100% polyester material; machine wash cold and line dry; do not bleach, iron, or dry clean
  • Measures 78 by 50 inches
Bestseller No. 6
NICETOWN 100% Blackout Window Curtain Panels, Heat and Full Light Blocking Drapes with Black Liner...
  • Ready Made: 2 panels blackout curtains per package. Each Classic Lined Blackout Curtain measures 52" wide x 84" long (Total width is 104"). The unique...
  • Blackout Effect: The real blackout curtains on the market. Sew in black liner backing makes the drapes thick enough to completely keep out the...
  • Noise Reducing: Heavyweight Blackout Curtains can be a good sense of drape, making the window completely closed, to cut noise down. The effect of...
  • Unique Design: Blackout curtains constructed with 2 layers are all triple weave blackout fabric, balancing room temperature by insulating against...
  • Easy Care: Quality finishing will withstand years of use. Machine washable and Wash the water temperature below 86℉. Mild detergent no bleaching....
Bestseller No. 7
Blackout Drapery Fabric Color: Black, 3 Pass Blackout Fabric, Blackout 99% of Light, 56" Wide, Sold...
  • Fabric Type: 100% Polyester
  • Blackout Drapery Fabric. 3-pass / 3 layers. Available in Black color. Sold by the Yard.100% polyester. 56" Wide. We offer the best price, service, and...
  • Fabric care instructions: Machine Wash Cold/Tumble Dry Low
  • You can order your selected yardage and we custom cut and ship as a continuous piece. For example, an order of 1 yard (Qty=1) is 54" x 36". Order of 3...
  • Noise-dampening due to its thickness, middle foam layer, and tight weave structure.Can be used as a liner in conjunction with your designer fabric. It...
SaleBestseller No. 8
DREAM ART Anywhere Portable Blackout Curtain/Adjustable Blackout Shades/Temporary Blackout Blinds...
  • ✅EASY INSTALLATION : CLEAN THE GLASS and MOIST the suction cup,then stick the curtain on windows or any smooth surface in minnutes with suction...
  • ✅95-100% BLACKOUT:100% polyster high densit fabric : 95-100% blackout sun light,Perfect effect for Nursery,Day Sleeper,Baby and Kids
  • ✅ADJUSTABLE SIZE: Maxmun up to W51"xL72"(132x183cm)
  • ✅PORTABLE&TEMPORARY USING:Light weight: 1.43 LBS with handy bag,it is easy to take in travel,an pefect use in hotel,office
  • ✅Handy Travel bag: Dustproof and portable for use anywhere;
SaleBestseller No. 9
NICETOWN Black Blackout Curtain Blinds - Solid Thermal Insulated Window Treatment Blackout...
  • ELEGANT DESIGN: 2 panels per package. Each Blackout Curtain Panel measures 42 inches wide x 63 inches long. The NICETOWN drapery is constructed with...
  • LENGTH ADJUSTABLE: Don't worry if this blackout curtains are a few shorter than your windows. You can hang this curtain panels with rings and hooks....
  • AMAZING MATERIAL: This unique, soft and heavy-duty blackout fabric is woven with three-layer construction. The middle layer of black yarns creates a...
  • GOOD CHOICE: Perfect drapery option for anyone seeking to block daylight, take a nap, or keep sun glare off your TV. Besides, you can choose blackout...
  • NICE SERVICE: Decorate your home, high quality. Nice pre-sale and after-sale service. Your 100% satisfaction is our #1 priority. Just contact customer...
Bestseller No. 10
VIVOSUN S448 4x4 Grow Tent, 48"x48"x80" High Reflective Mylar with Observation Window and Floor Tray...
  • Keeps All Light In: VIVOSUN Hydroponic Mylar Grow Tent blocks all light from escaping and is lined with 100%-reflective mylar to boost the output...
  • Extra-Thick, Stands Sturdy: Supported with strong metal poles, the quality 340 g Oxford fabric tent is tear-proof and double-stitched for good light...
  • Easy Observation: Don't throw out your back bending over to check on your plants; Our easy-access door unzips smoothly, and the observation window...
  • Fast Installation: Our grow tents are easy to install even if you've never done anything like it before; Unrivaled craftsmanship and materials make...
  • More Options, Simple Assembly: We pride ourselves on delivering a selection of grow tents at various sizes; With the guidance of the manual, you can...
Bestseller No. 11
Home-Complete HC-4202 Walk-In Greenhouse- Indoor Outdoor with 8 Sturdy Shelves-Grow Plants,...
  • 8 DURABLE SHELVES- The 8 sturdy shelves provide plenty of room for trays, pots, or planters of anything you want to grow. It’s a convenient option...
  • INDOOR OUTDOOR- This versatile greenhouse is ideal for both indoor and outdoor use; keep it on your backyard patio, deck, or in the basement or...
  • EASY ASSEMBLY- With no tools required, the greenhouse is easy to assemble! Simply follow the included instructions and connect the rods. Rope and...
  • USE IN ALL SEASONS- The walk-in greenhouse is the perfect way to extend your growing season! This home gardening essential is great for plants,...
  • PRODUCT DETAILS- Materials: Steel frame and PVC cover. Dimensions: (L)56.3”x (W)56.3”x (H)76.7”. Color: Green with clear cover. Rope, anchors,...
SaleBestseller No. 12
Mutual WF200 Polyethylene Woven Geotextile Fabric, 300' Length x 6' Width
  • Grab Tensile Strength: 205 lbs; Grab Elongation: 15%; Trapezoid Tear: 75 lbs; Puncture: 100 lbs; Mullen burst: 400 PSI; Permittivity: 0.07 sec
  • Woven geotextiles are used to hold soil in place, and can also be used under rip rap, gabions or precast block
  • Woven geotextiles area time and money saving alternative to traditional methods using graded aggregate or sand filters
  • They prolong the surface life and stabilize the foundation while providing a rugged separation layer between aggregate and subgrade
  • Measures 6-feet width by 300-feet length; Weight: 30lbs
Bestseller No. 13
DearHouse Balcony Privacy Screen Cover, 3.5ft x16.5ft Privacy Screen Balcony Shield for Porch Deck...
  • 【Size】3.5*16.5(ft) (519cm*106cm ) ( L * H), DearHouse privacy screen cover will block off 95%.We provide you with 35 pieces black zip ties.
  • 【Widely used】The Privacy Cover is widely used in Porch Deck, balconies, outdoor , courtyards, roofs, carports, warehouses, etc.
  • 【Multifunction】The Fence Privacy Screen can be a Shading net, which can be use for privacy protect.
  • 【Black Weather Resistant Mesh Material】The Balcony Privacy Screen Cover is water resistant and durable to use!
  • Lower Visibility & Privacy Protection】The Visibility of Balcony Shield Cover is lower, which can protect your balcony/garden/patio/yard better! It...
Bestseller No. 14
ECOgardener Premium 5oz Pro Garden Weed Barrier Landscape Fabric Durable & Heavy-Duty Weed Block...
  • Discover The Professional Gardening Solution – The ECOgardener ultimate pro weed barrier landscape fabric is here to make your life easier and 100%...
  • Super-Easy To Install and Set-Up – You don’t have to be an expert or call in expensive professionals in order to set up the elite ECOgardener weed...
  • Your Soil Has Value And We Know It – Our exclusive garden weed control mat is designed to let air and water through, thus conserving your soil’s...
  • Weed Barrier Fabric Made To Last – The heavy-duty, durable and sturdy design of the ECOgardener pro landscape weed barrier will provide you with...
  • 100% Satisfaction Or Your Money Back – We, at ECOgardener, believe that you deserve the most advanced, durable and professional solution for your...
Bestseller No. 15
Hanes Drapery Lining Blackout Eclipse White, Fabric by the Yard
  • From Hanes Fabrics, this elegant 4.3 oz. dim out drapery offers exceptional softness, drapeability, and value. Can be used as a stand-alone drape or a...
  • Washing Instructions: DryClean
  • 54'' Wide. Fabric is sold by Washing Instructions: The yard and cut to order. For example, order of 1 yard (Qty=1) is 54" x 36''. Order of 3 yards...
Bestseller No. 16
KGORGE Blackout Curtain Liners - Sun Light / Heat Blocking Liner Drapes, Blackout Lined for L 84"...
  • EFFECTIVE BLACKOUT: 2 panels per package, W50 x L80 each. The thick triple weaved fabric can enhance your curtain blackout effect up to 85%-99%(black...
  • ENERGY SAVING: Using the eco-friendly triple weaved fabric, formaldehyde-free, Azo-free, no odor, create a green life for you. These liners not only...
  • HANGING OPTION: Each pair of the liners bonus 16 hooks, which is super easy to install behind existing curtains by using the hooks or clip rings,...
  • HOME DECORATION: KGORGE Blackout curtain liners can hiding perfectly, enhance the blackout function while keeping the decor you want, getting the room...
  • EASY CARE: Good quality finishing will withstand years of use. Machine washable, keep the water temperature below 86℉. Low-temperature ironing.
SaleBestseller No. 17
EAGLE PEAK 8'x6' Portable Walk-in Greenhouse Instant Pop-up Indoor Outdoor Plant Gardening Green...
  • EASY SETUP: Innovative easy setup technology allows you to set up this greenhouse with ease. Most collapsible greenhouses on the market have...
  • NO TOOLS NECESSARY: EAGLE PEAK Pop-up Greenhouse is ready for use right out of the box with absolutely no assembly or tools required. Because of our...
  • SPACE TO WORK: Enjoy freedom of movement with the spacious walk-in greenhouse. Shelving fits comfortably in 6’x8’ of floor space. You have space...
  • STABLE AND STURDY: You can be confident that your plants are safe by the incredibly sturdy and stable steel-frame greenhouse. With a steel-ceiling...
  • EAGLE PEAK PROMISE: EAGLE PEAK offers a 1-year limited after sale protection from the original date of purchase. Unlike many other greenhouse...
Bestseller No. 18
Ohuhu Mini Greenhouse for Indoor Outdoor, Small Plastic Plant Greenhouses 4-Tier Rack Plant Stand...
  • Four-Tier Construction: Each greenhouse comes with 4 shelves, measuring 24.4x17.3inch and holding up to 22lbs. Better still, each shelf is equipped...
  • Tough & Durable: Possessed with elector-coating, the tubes are tough, sturdy and rustproof. Made of premium PE, the eco-friendly outer cover with the...
  • Roll-up Zippered Door: The Ohuhu Mini Greenhouse is designed with a zippered roll-up door for easy access and optimum air circulation. Screened...
  • Plant Guardian: Neither freezing-cold winter nor sizzling-hot summer does any good to your plants. And the Ohuhu Portable Greenhouse comes in to...
  • Toolless Installation: Life should be easy, and so is the greenhouse installation. This mini greenhouse can be assembled or disassembled without any...
Bestseller No. 19
LIFEI Upgraded Portable Blackout Shades, Travel Blackout Curtains, Temporary Blackout Blinds, Clever...
  • 【Large Size & Lightweight in a Handy Travel Bag】: LIFEI travel blackout curtains is measured at 77" x 50"as its unfolded size. It comes in a handy...
  • 【High Quality Suction Cups with Superb Holding Force】: LIFEI travel blackout curtains comes with excellent quality suction cups, which stick to...
  • 【Longer Velcro Tapes Providing Better Adjustability】: LIFEI temporary blackout blinds is designed to have multiple long and wide high density...
  • 【Pitch-dark Sleeping Atmosphere】: LIFEI temporary blackout blinds is made of thick, sturdy but soft fabric materials which block out all lights...
  • 【Various Uses】: LIFEI temporary curtains is applicable in various places, such as baby rooms, office naps, nusury offices, unconventional...
Bestseller No. 20
HOOPLE 5oz Weed Barrier Fabric, Garden Landscape Fabric, Durable & Heavy Duty Weed Block Gardening...
  • 🏆 Premium Landscape Fabric: Dual layer material. Measures 4 x 50 Feet. Thick and durable fabric can be used for a long time. Saving your time on...
  • 🔗 Easy cut and install: This fabric is easy to cut and install. A roll of extra thick sunlight minimizing landscape fabric for yard, flower beds...
  • 🍀Environmentally friendly: Chemical free, This fabric won't harm the ecosystem of your yard. Allowing your plants to thrive.
  • 🌞Permeable to air and water : Our heavy duty fabric will block sunlight away for a worry-free irrigation.
  • 💯Purchase Guaranteed: Tough and durable under direct sunlight. Guarantee to last five years. Simply contact us through Amazon if you have any...

Having trouble finding a great Blackout Fabric Greenhouse?

This problem is well understood by us because we have gone through the entire Blackout Fabric Greenhouse research process ourselves, which is why we have put together a comprehensive list of the best Blackout Fabric Greenhouses available in the market today.

After hours of searching and using all the models on the market, we have found the best Blackout Fabric Greenhouse for 2023. See our ranking below!

How Do You Buy The Best Blackout Fabric Greenhouse?

Do you get stressed out thinking about shopping for a great Blackout Fabric Greenhouse? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Blackout Fabric Greenhouse, which is why we have assembled a comprehensive list of the greatest Blackout Fabric Greenhouse available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Blackout Fabric Greenhouse that you consider buying. Your questions might include the following:

  • Is it worth buying an Blackout Fabric Greenhouse?
  • What benefits are there with buying an Blackout Fabric Greenhouse?
  • What factors deserve consideration when shopping for an effective Blackout Fabric Greenhouse?
  • Why is it crucial to invest in any Blackout Fabric Greenhouse, much less the best one?
  • Which Blackout Fabric Greenhouse are good in the current market?
  • Where can you find information like this about Blackout Fabric Greenhouse?

We’re convinced that you likely have far more questions than just these regarding Blackout Fabric Greenhouse, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Blackout Fabric Greenhouse, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Blackout Fabric Greenhouse. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Blackout Fabric Greenhouse buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Blackout Fabric Greenhouse currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Blackout Fabric Greenhouse has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Blackout Fabric Greenhouse?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Blackout Fabric Greenhouse.
  5. Customer Ratings: Number ratings grade Blackout Fabric Greenhouse objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Blackout Fabric Greenhouse.
  7. Product Quality: You don’t always get what you pay for with an Blackout Fabric Greenhouse, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Blackout Fabric Greenhouse is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Blackout Fabric Greenhouse information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Blackout Fabric Greenhouse is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What is the best blackout tarp for a greenhouse?

A: Our light deprivation greenhouse blackout tarps are perfect for keeping greenhouses and grow rooms 100% dark. All of our panda films are reversible, if you want to use it as a blackout tarp, keep the black side facing in towards your plants. If you want to reflect light on the interior of your greenhouse, keep the black side facing out.

Q: What is the best Blackout Film for my greenhouse?

A: When total blackout light deprivation is required, this can be best accomplished using Farm Plastic Supply’s blackout film. Two of the 3 melted layers of our film are black while the other external layer is deep white to help from keeping the greenhouse from overheating. Some will call this plastic film type Panda film.

Q: What is the best material for Blackout drapery?

A: This medium-heavyweight 100% polyester fabric is perfect for use as blackout drapery, but it can also be used as a lining. The fabric is durable and has many different uses. Can be used commercially in places like schools or in the workplace, but can also be used in the home. The fabric is also flame retardant.

Q: Is your greenhouse black from the inside?

A: You may be surprised to learn that even though a greenhouse structure may look white from the outside, it may be a complete blackout from the inside. A greenhouse that is a TOTAL BLACK is for light deprivation.