Too Hot, Insulation Required

[prefabs]

Been doing up and converting an old house. I now have a room which is small, air conditioned, and nasty to be in. Sole purpose of this room was for me to watch TV, surf the net etc. Unfortunately, by 6pm, the room is extremely warm, the sun hitting 2 walls from lunchtime onwards. These walls are very warm to touch inside.

Construction is standard grey brick, rendered both sides and painted internally and externally. I can't knock the walls down and replace with

superblocks or such like, but would appreciate advice on how to solve this problem. As the walls are small, say 3 m x 3.5m each, I would be prepared to double up the original walls, but should I use superblocks or normal blocks with some kind of insulation material inside? Has to be done externally as the inside of the room cannot be touched now.

[Crossy]

How about some alternatives to insulation?

Since you know the major issue is the sun hitting the walls why not try stopping the sun from reaching the wall

Quick and dirty, get some shade cloth and hang it on a bamboo frame. This will at least prove principle even if it doesn't look neat.

Is there room for some shade plants? Bananas are cheap, grow fast and you can eat them

I saw a thread somewhere (not even sure it was on TV, could have been on that other forum) involving a slatted Shera Wood shade about 6" from the wall which apparently worked well too.

Why not build a solar water heater in front of the wall, you already know it gets lots of energy

[prefabs]

How about some alternatives to insulation?

Since you know the major issue is the sun hitting the walls why not try stopping the sun from reaching the wall

Quick and dirty, get some shade cloth and hang it on a bamboo frame. This will at least prove principle even if it doesn't look neat.

Is there room for some shade plants? Bananas are cheap, grow fast and you can eat them

I saw a thread somewhere (not even sure it was on TV, could have been on that other forum) involving a slatted Shera Wood shade about 6" from the wall which apparently worked well too.

Why not build a solar water heater in front of the wall, you already know it gets lots of energy

Lady of the house has already mentioned the tree idea, I like the Shera Wood shade idea too. Do you know where can I buy Solar panels?