Do Bamboo Shades Block Sunlight or Retain Heat? Plus 3 Easy DIY Tips to Make Them More Private

Bamboo shades have long been loved for their natural texture, eco-friendliness, and warm, earthy tones. But when it comes to functionality—specifically light control, heat insulation, and privacy—many homeowners still wonder: Do bamboo shades really block sunlight or help retain indoor heat? And what if they’re too see-through?

Let’s explore what bamboo shades can (and can’t) do—and how you can easily enhance their performance with a few simple DIY tricks.

Do Bamboo Shades Block Sunlight?

By default, most bamboo shades are light-filtering—not blackout. The gaps between the woven slats allow diffused natural light to pass through. This creates a warm glow that brightens the space while softening harsh rays, which makes them ideal for living rooms, sunrooms, or kitchens where you want light without direct glare.

Pro Tip: If you’re looking for bamboo shades that provide more light blockage, opt for styles with added liners—either sewn-in or detachable. Here’s an example of a lined flax & jute shade that offers better control over incoming light.

Can Bamboo Shades Retain Heat?

While bamboo is a natural insulator, traditional woven bamboo shades on their own offer minimal heat retention. In cold climates, you might still feel a draft through uncovered window gaps, and in hot summers, the open weave may not block enough solar heat.

To improve thermal performance, again, consider shades with a privacy or blackout liner. These liners not only improve privacy but also add an extra layer that slows down heat transfer. Some high-quality bamboo & jute shade collections even come with customizable lining options for better insulation.

The Privacy Problem: Are Bamboo Shades See-Through?

Yes—and no. During the day, most light-filtering bamboo shades offer sufficient visual coverage. But at night, when the interior lights are on, they can become see-through from the outside. This is a common concern for bedrooms, bathrooms, and street-facing windows.

Fortunately, you don’t have to replace your shades. Below are three easy DIY fixes to make your bamboo blinds more private:

1. Add a Privacy Liner

This is the most effective and clean solution. Liners are typically made from polyester, cotton, or blackout fabric, and can be attached to the back of your existing shades with Velcro, clips, or fabric tape.

You can choose between:

• Light-filtering liners: Reduce transparency while still letting in soft light.
  
  

• Blackout liners: Completely block light and visibility—great for bedrooms or nurseries.
  
  

Some modern bamboo shades come with built-in liners, or give you the option to select one at checkout.

2. Use Sheer Curtains Behind the Blinds

Layering sheer curtains behind bamboo shades adds an elegant and practical touch. During the day, it enhances light diffusion, and at night, it acts as a second barrier for privacy. If you don’t want the full blackout look but still need some coverage, this is a great option.

3. Apply Window Film

Window privacy film can be a quick DIY project for those who want more control without sewing or installing additional fabric. Frosted or mirrored window films applied to the glass can obscure visibility while still allowing daylight in. This works especially well on bathroom or hallway windows.

Final Thoughts

Bamboo shades are more than just a decorative feature—they can contribute to light control and insulation, especially when paired with smart enhancements. Whether you’re dealing with harsh sun, fluctuating temperatures, or nighttime privacy concerns, there’s likely a bamboo shade solution that fits your needs.

If you’re in the market for customizable bamboo shades with light-blocking liners or want to learn more about choosing the right style for your space, you can explore options here.