This is what I did in our retail store... not through this company, but you get the idea... I paid $1200 to cover the front of my store (two 8x8 blinds) and had photographs printed on the blinds. one is of caramel apples and the other of dipped strawberries. so... when the sun is shining directly into my store and I have to lower the blinds.... (always in the early morning winter months.... i don't have to lower blinds in the summer because we have an awning that protects the windows....) I am still advertising products that I sell daily....
I have my employees lower them at night and then i roll them up at about 10 am sept oct nov.... 11am dec jan feb mar.... 10am apr may jun july and august they don't need to be lowered. It all depends on how the sun hits the front of your store.
morning sun is intense and damaging but i don't think i would want those shades down in the afternoon.... note to those opening new locations..... this is something you never think of when you are opening a new store.... "When does the sun hit my window?" Shades down often says CLOSED to your customers..... you want those shades down as little as possible.
even if there is snow on the ground outside, the sun can melt chocolate through the window. if the shades are down, the doors are open..... i don't care how cold it gets....
I hope this helps.... check out the link for an idea....
http://www.blindsgalore.com/WindowProduct.asp?id=709416&ph=36&pw=24&utm_medium=shoppingfeed&utm_source=google&utm_campaign=googleshoppingfeed&gclid=CIrX_qmY_bICFQjZQgodvnYAyQ