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Leaf curling on a roe can be due to either lack of watering or insect attack where sap-sucking pests like aphids and/or mites are causing damage. Check the undersides of leaves for any insects hiding from view and, if present, spray them with a pyrethrum insecticide.
Other leaves are looking dry and brown on the margins, which could indicate lack of watering and/or fungal disease. If your watering regime has been reasonably good, then I'd suspect disease. An application of a copper-based garden fungicide before leaf fall (which will happen in autumn) would be beneficial.
Welcome to the Bunnings Workshop community @nelsondave69. It's terrific to have you join us, and many thanks for your question about rose care.
It's wonderful to see that @Noelle has already provided assistance. To add to her excellent advice I thought I'd link you to this helpful article: How to grow, prune and propagate roses.
Please let us know if you have any questions.
Mitchell
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