My Crepuscule blooms all the time with luscious peach blooms, they do not fry in our hot Texas sun and never notice any problems with folliage.

Heat reflecting from the bricks onto the foliage could promote the proliferation of spider mites on the undersides of the leaves, especially the lower ones.

Whatever rose you put there, you might want to rinse off the foliage with the hose in the mornings to help prevent this.

My folks had an orange and pink bougainvillea growing up their chimney for years, and it did very well. Didn't require much water either.

We are in a notoriously cool, coastal climate. Our south-facing 12-ft-tall retaining wall seemed like a great place to espalier various roses in just that manner.

In fact, what happened was that heat reflected off the wall and burned any stretch of bare cane.

We mitigated the problem to some extent by placing big latticework panels between the plants and the wall, with a gap for air circulation. Even so, roses that hold a lot of foliage, providing their own shade, fare best in that rather brutal location.

Another thing. You might want to check to see how wide and how deep are the footing for your wall. And, if the footing is concrete, consider if there might be any problems with the concrete being there.

Jeri

This is a question that intrigues me. I have a 5 ft west facing concrete wall about 200 ft long, and of course I want to cover it with roses, but am afraid they will burn.
Do you think it would be harmful to the roses if I planted some type of mannerly vine or ivy to cool off the wall, and it grew onto the canes of the roses?
I'm pretty sure I need to cool the wall whether I plant climbing roses onto it, or shrub roses next to it.

Be careful what vines you plant. If they will cling to a wall or trellis, they may strangle roses.
For God's sake, don't use Morning Glory!

Jeri

No kidding on the morning glory! And boston ivy (or whatever it is that covers old neighborhoods and hillsides and freeways) just gives me the creeps, how it strangles everything and harbors rodents. To add insult to injury, the city (or county) actually waters that crap, wasting water (and my tax dollars) on a virtually indestructible plant.
But yes I see your point about the roses possibly getting strangled.