4 Best Reflective Material For Grow Room in 2021

You can grow your plants indoors without worrying about how they can get enough light to aid photosynthesis. Reflective materials are available to circulate the room with the amount of light the process requires. You need the best reflective material for grow room to ensure effective growth of your plants.

Why You Should Trust Us on this guide?

In order to get the best results for your indoor plants, you require a perfect reflective material to help provide the sufficient light they require. There are several models and products on the market which are crafted to help your plants. However, they are more functional than one another and this is where the difficult work of finding the most suitable one comes in.

Realizing how tough sifting through hundreds of products will be for you, we created this handy guide to help you make the best choice for your grow room. Our team of researchers put in several hours of work to dissect each model and product. We learned their various features and how they can help spread light to all the corners of your grow room.

In this guide, we will review the top options on the market and point out their strengths and weaknesses. This guide promises to save you from the stress that comes with making the best choice. We will guide you effectively to help pick the best option for your grow room.

How to pick the best reflective materials for grow room?

When picking a reflective material, you need one that will maximize your light’s reflection across the grow room. Different kind of materials have different reflective capacities and this is an important factor you must have in mind. You need a reflective material that can tend to your needs and the peculiarities of your grow room. Below, we will discuss the most important factors to consider when buying a reflective material for your grow room.

Reflective Capacity

Adequate reflection of light is the main function of a reflective material. You should be very much concerned about your material’s reflective capacity. This tells a lot about how well it can benefit your plants in the long run. For instance, Mylar is arguably the most reflective material and provides close to 100% reflectivity. If you are looking for an option with the most reflectivity, you now know the best material to look out for.

Paint, plastic and aluminum foil materials can also provide up to 95% reflectivity depending on their models. Endeavor not to purchase a reflective material that is prone to wrinkles and scratches. This will bring about dark spots and hot spots. Light concentrates on hot spots while it is absent in dark spots. When these become present in your sheet, it won’t reflect light equally to all areas of your grow room.

The reflective capacity of the option you’re choosing is very important and you must not make any mistake. The capacity of the material to reflect light will determine the health of your plants.


This is another important factor to consider when purchasing your reflective material. You don’t want an option that needs replacement after just months of use. For instance, aluminum foil can easily wrinkle or scratch and this doesn’t promise a sheet that can last long. Some paints may also wash out in a short time as a result of environmental conditions. Endeavor to buy a sheet made from a material that promises longevity. You don’t want yourself having to make frequent replacements.


Before going ahead to buy a reflective roll, make sure you know the temperature of your grow room. There are certain materials best suited for cold environments while there are also materials made for hot environments. You need a reflective sheet that can suit your grow room in order not to endanger the health of your plants. For instance, paint reflective material doesn’t emit excessive heat. This in turn means your grow room with high temperature will not become hotter. If your grow room has a low temperature, a Mylar or Foylon reflective material is your best option. These materials emit radiant heat and require proper ventilation.


The first things you consider whenever you want to purchase a product are usually the cost and your pocket. You want a cost-effective roll that won’t put a hole in your pocket. You also want it to have high quality. Endeavor to go for a roll that is affordable and doesn’t compromise on quality. If you are going for an expensive option, ensure it’s providing good value for your money. Don’t buy a product that is not commensurate with the price.

4 Best Reflective Material For Grow Room Reviews

There are several reflective rolls on the market and we have decided to review the top four products that will most definitely suit your dire need for quality. We will discuss their features and also point out their advantages and disadvantages.

1. VIVOSUN 6 Mil Mylar Film Roll

The first product on our list, VIVOSUN 6 Mil Mylar Film Roll, is made of macromolecular material and aluminum coated PET film to ensure 100% reflectivity. The macromolecular material makes it waterproof, anti-corrosive, resistant to high temperature and not difficult to clean. It ensures your grow room stays at a normal temperature for the good of your plants.

It comes with a durable diamond film with 92-97% reflectivity. The diamond textured surface helps spread light more equally across your grow room and also raises the lights’ intensity. This 41.5 pounds product can resist tear and is reusable for years. This will help to save your money and time. Cleaning this roll is quite easy if it gets dirty. It is also cost-effective for a top reflective roll.


  • Reflects 92-97% of grow light
  • Indoor heat is reduced
  • Cleaning is quite easy
  • Quite durable
  • Light is spread evenly


  • Smells bad for sometime after unwrapping

2. VIVOSUN Horticulture Highly Reflective Mylar Film Roll

The second option on our list is another top product from VIVOSUN. It is also endowed with a highly reflective mylar film that reflects 92-97% of grow light. It is a durable option and is also resistant to tear and puncture. This option raises the intensity of the grow lights and doesn’t require more electricity to make this happen. It also absorbs heat to help keep your grow at a normal temperature required to aid your plants' growth. It features a polymer backing which serves as vapor barrier.

This roll is heat insulating and waterproof. It is also resistant to aging and corrosion. It can be easily mounted; either taped directly or tacked to a smooth surface. Its thickness is 2 mil; width is 48"; length is 100 FT; weight is 7.25 pounds and heat resistance temperature is 190℃ / 374℉. It is plant safe and environmentally safe


  • Resistant to tear and puncture
  • Super durable
  • Maintains proper room temperature
  • Waterproof


  • Somewhat difficult to clean
  • May come with manufacturing defects

3. NAVADEAL Silver Reflective Mylar Film

The NAVADEAL Silver Reflective Mylar Film is another highly reflective option on the market for your plants. This product is made of VMPET of high quality.  To ensure optimum reflectivity, both sides of the film are metallized. This option can reflect 95% of grow light. It also prevents dark spots and hot spots by spreading light evenly. Your plants will surely thrive under this condition when they get equal light. It comes with a set of durable two sheets. Coated with PET, this film is resistant to puncture, corrosion and tear. This mylar film can be easily adhered to the wall with adhesive spray or any tape.

This versatile roll can also be used for outdoor camping. This option is plant safe and environmentally safe. It is cost-effective and quite easy to use. Buying from NAVADEAL also means you’re getting your product from a company that offers 100% guarantee. If your product doesn’t satisfy you, you can ask for a refund.


  • Durable
  • Resistant to puncture, corrosion and tear
  • Can be easily adhered to the wall
  • Cost-effective
  • 100% guarantee


  • Wrinkles easily

4. Earth Start Reflective Mylar Roll

Earth Start Reflective Mylar Roll is the fourth product on our list. Mylar is an effective, inexpensive reflective material that helps to reflect back grow lights across the grow room. It can reflect up to 100% grow light. The 1.75 pounds roll also features a polymer backing which serves as vapor barrier.

It is durable despite the lower price. It is also resistant to tear and puncture. Both sides of the roll are metallized and the 2 mil thick product is heavy duty. This means you are getting a rugged roll that promises durability and effective service. A novice will not have any problem fixing this material. It can be easily adhered to a smooth surface with any tape, staples or thumb tacks. You can also employ this product as a mirror as long as you are applying it on a smooth surface. Presence of wrinkles will provide distorted images so do well to stretch the mylar perfectly.


  • Reflects up to 100% grow light
  • Inexpensive option
  • Easy to fix
  • Resistant to tear and puncture


  • Water reduces reflectivity

FAQs on Reflective Material For Grow Room

Can I Use Mirrors As Reflectors in my Grow Room?

AnswerNo, please don’t. Mirrors are only great at reflecting images, not light. Apart from not being great reflectors, they can harm your plants. They can generate hot spots due to the infrared light they reflect which is heat.

They are notoriously prone to delamination in damp conditions. They are not good options for your plants if you don’t want trouble. This is why you almost don’t see them in grow tents or boxes. It will do you a lot of good to put them in your bedroom or bathroom where they are actually useful.

Is tin foil a good reflector?

AnswerYes, tin foil is a pretty good reflector. It works perfectly when its surface is clean. Impurities of aluminum materials are no good to the foil. They reduce its reflectivity, scatter and raise radiation absorption. Purity should be up to 99.6% at least if high reflectivity wants to be obtained. Other factors like surface roughness, heat rays and smoothness also affect foil’s reflectivity. When purity and heat rays of the foil increase, light reflectance will increase. When surface of foil is not smooth, light reflectivity decreases.

While the tin foil will not reflect much light as mylar will do, it will reflect enough light to effectively aid your plant’s growth. When you put enough space between plants, light from tin foil will reach each of their foliage.

What is the best color to paint a grow room?

Answer: The best color to paint a grow room is white. This is because it reflects more light than silver wall or metallic colored covering. White paint can reflect as much as 75-85% grow lights. There are no bubbles or pockets with white paint so you should be rest assured there won’t be any hot spots. It is made in such way that nuisances like mildews, fungi and molds will not find shelter in it.

Once you ensure the surface you are painting is smooth, with white paint, you won’t have anything like wrinkling. Cleaning a painted surface is also clean.


Gone are those days when you are only restricted to outdoor farming, innovation has now turned things around. You now have the luxury of growing plants indoor with tools that can aid their growth and survival. You would have noticed all the four products we reviewed are of mylar material. This is because of the high reflectivity it provides for the good of plants.

Your plants require plenty light and normal temperature to ensure effective growth. In searching for the best reflective material for grow room, you should go for a product that promises you high reflectivity, super durability, and proper temperature.

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