Do I have to paint HardiePlank™ siding?
Yes, HardiePlank™ lap siding must be painted or you may order many James Hardie products with ColorPlus Technology. If painting, 100% acrylic topcoats are recommended. Do not paint when wet. For specific recommendations, please refer to JH Technical Bulletin No. S-100 or refer to paint manufacturers specifications. Back rolling is recommended if the siding is sprayed. Within 180 days for primed product and 90 days for unprimed.