Yes. Bamboo shades when combined with a privacy or blackout liner – help to provide effective insulation against summer’s heat and winter’s cold. Check to see if they have an option for a black out liner to maximize light blockage. Anything placed over a window will help keep a room cool. It depends on how much light filters through. Cellular shades eliminate virtually 100% of UV rays so you may want to consider those as well. Look at this site. http://www.hunterdouglas.com/our-products-detail.jsp?id=8#/PD/ You will be able to click on "Explore Fabrics and Colors" to view the 77 swatches in your collection. When you see the swatches, click on "View Detail" You will be able to select and change the "Privacy and Light Control" to compare 1-4. #1- letting in the most light and #4- filtering out the most light. See if comes up with your sample. http://www.hunterdouglas.com/imagine_wrapper.jsp?sessionid=1390518C65B69E567B9072C79402DBE3&id=8&ref=http%3A//www.hunterdouglas.com/our-products-detail.jsp%3Fid%3D8%23/PD/ It depends on how much of the light you want to filter out and the look you want. That is the reason I suggested you see about the black out option. It would be a liner on the back side of the blind and you would have the natural, warm feel of the wood or grass inside.