Yes, Lyn, your comment helps.
In my area, there are white iceberg roses all over, hundreds of them, and there are also red roses which have fewer petals, I'd say less than 20. There are clusters of rose bushes in full sun and also in part-sun, all of them sprinkler-irrigated twice daily.
In my own garden (a new garden I started last year), I have four rose bushes: a Dick Clark, a Julia Child, a single rose (possibly a Watercolors HR) and a yellow flower carpet rose plus two recently acquired climbing roses, one of which is a single.
Of the four "older" roses, the one that did not bloom this summer was the flower carpet rose, the others struggled during the heatwaves, of course, but they still would bloom (the iceberg and red roses around our community too). Once the weather cooled down my plants perked up and started blooming beautifully again.
I water all my plants by hand and my roses get a maximum of six hours of full sun in the summer and a minimum of 2-3 hours in winter. The red roses outside of my home facing north get more or less the same amount of sun as the ones in my garden and some of the iceberg roses may get full sun all day.
I hope this description gives you an idea of where my plants live. Most of my roses and vines do not get as many hours of full sun as the labels that come with the plants suggest but I think that that works to their advantage in the heat of the summer.