Given the windows are opaque, Im not sure if you need a sheer roller as well ( unless its west facing windows ). A roller blink with blockout seems the most appropriate.

Don't put a pelmet on, it may not appear as contemporary.

If insulation is important, then I would go roman over roller blind.

Sheer curtain would also look nice: would the rail be on the ceiling or just start above the window?

From your photo, it looks to me a single roller blind will fit neatly inside the window reveal. Best wishes.

I think remove the top half of film to let natural light is great, especially if north facing window

The 1st pic looks good. As you blinds will be white, do they have a white end cap available for side brackets? Otherwise, the head of looks fine too.

Headbox.

White headbox will look seamless. Cheers!

2 things to consider

1. The side of the window frame looks very narrow so may have gap on edge of window once you fit in bracket. Talk to the manufacturer of blinds with the frame widths.

2. The opaque film may be a requirement of a building or planning permit. You may need permission to remove. Depending on requirement an option could also be shutters that only open a bit at an angle to prevent overloooking

We put 'top down bottom up' honeycomb blinds on our bedroom windows. The fittings are really tiny and just in the 4 corners so no need to hide. We have them in a blockout fabric. The honeycomb structure provides insulation. We usually have them 'bottom up'. That way we see the sky and the trees and not our neighbours.

Hi Kath can you post a photo and where you get them

I bought mine online from Veneta. They are the Smartfit model. See the centre image on the bottom row at: https://www.venetablinds.com.au/14-honeycomb-blinds

Veneta posted me some samples in the colour range I was looking at so I could select the colour. My husband fitted them without too much difficulty. I'm having trouble transferring a photo from my phone, but each corner fitting is about 25mm x 25mm and 10mm high. Ours are mounted on the architrave because we have louvres with a handle that protrudes, but for other windows, within the frame is entirely possible - though as noted above with roller blinds, you'd get some light leakage around the sides if that was a concern.

I would consider a Roman blind in a coordinating fabric and a block out 3 pass lining. Install face fix with about 10cm overhang each side to eliminate any light and heat leakage. Also consider fitting the blind higher on the wall above the window, gives illusion of more height and when open they do not hang low to block out light. Roman blind has it’s own concealed headboard so you don’t need a pelmet. You will not need a roller blind. You don’t need sheers in this situation. A roman in a fabric that picks up the carcoal ( look at Warwick fabrics for a start) will add interest to the room and look smart for growing boys.

As the mother of teenage sons may I say that roller blinds have the potential to get damaged and dirty and I wouldn’t risk it. Sleepy boys with sweaty hands, grasping at the blind is almost certain to end badly. Why not shutters? V contemporary, easier to clean and easy for sleepy lads to “slap” them open/closed without causing permanent damage. Keep it simple... the KISS policy... where teen boys are concerned.

Totally agree with kath, privacy, durable, and light control plus they make a great head board, they will demolish roller blinds KISS

Zaffa, if you pop down to your local Spotlight store, they have examples of all types of blinds and shutters Great to get an idea of what each look like, various options, pricing, etc, etc. Only, NEVER EVER order shutters from them! I ordered mine from them when building and they took longer than the house to make them! Ended up having to use temporary blinds for months until they arrived. Also, they really let a lot of light in, so not great for kids bedrooms at all! Romans and rollers keep out much more light if you don't want to go down the full curtain with pelmet option. You can also go automatic blinds with rollers if you're concerned about boys touching the blinds too much. Adds around $500 per window I think I was quoted, so depends on your budget. Cannot automate roman blinds apparently. Best of luck in your decision.

Hi Zaffa, I have roller blinds in my bedroom. My windows are double hung. When you want to have the blinds down at night and the window open, you can only put the blind to the top of where the window is open to, if it's lower and it's breezy the blind moves around and the metal rod at the bottom hits the frames and keeps us awake. My Mum has them in her bedroom and she has sliding windows, so it doesn't matter whether she rolls her blind down or leaves it up, it still bangs in the breeze. She keeps her window closed and uses a pedestal fan in the summer. It may not bother your boys but I just thought I would mention it.

You should also consider a bonded blind. This is basically a holland blind covered in fabric of your choice. The fabric provides additional insulation as well as becoming a key for the bedroom decor. I think a type of stripe fabric say in blues or greens or greys would be suitable and have longevity.

If it were my boys room, I would give them the choice of something which means a lot to them (as long as they could agree!) soccer scene, surfboard, skateboard, cricket, favourite super hero, skyline they particularly like, favourite movie or computer game or similar. When they have left home or too old for same, you can then install something more plain. Try Printed Blinds Australia, you can supply your own image or choose from theirs