How hot do the boards get in direct sun?

Good morning and thank you for your question. Composite decking products, as with most outdoor building products, can retain heat especially after a long day in direct sunlight. At TimberTech, we have engineered certain formulations of our Advanced PVC decking products to minimize heat build-up, so they’re cooler underfoot, up to 30 degrees cooler than competitive composites. If you're building a deck that will be in direct sunlight, we suggest that you consider decking options that are lighter in color, as they reflect more light, and therefore retain less heat than darker colors. -AZEK Customer Care