I remember reading somewhere that some of the newer composites are supposed to stay cooler, but I haven’t actually seen much difference myself.
Yeah, I’ve tested a few “cool deck” composite samples side by side with regular ones and honestly, the temp difference is pretty minor—maybe a couple degrees cooler, but still hot enough to make you hop around barefoot. Lighter colors help a bit, but they show dirt and stains more.
Thermally modified wood is interesting. It’s definitely more stable and less prone to rot, but it can still get warm in direct sun. One thing I’ve found helpful is adding a pergola or some shade structure over the deck area. Even partial shade drops the surface temp a lot, no matter what material you use.
Mixing hardscape with ground cover is a smart move. I’ve had good luck with creeping thyme between pavers—it’s tough, smells great, and handles foot traffic. Like you said, there’s always some maintenance, but at least it’s not as harsh on paws or little feet as straight-up stone or composite.
Even partial shade drops the surface temp a lot, no matter what material you use.
That’s been my experience too. I tried one of those “cool touch” composite boards last summer—could still fry an egg on it by noon. Shade is the only thing that really makes a dent. I like the creeping thyme idea, though. I tried Irish moss once but my dog thought it was a snack bar... didn’t last long.
Shade is the only thing that really makes a dent.
I get where you’re coming from, but I’ve had a bit of luck with lighter colored pavers. They don’t stay cool exactly, but compared to the old dark concrete slab we had, it’s a noticeable difference. Here’s what worked for us:
1. We picked a pale stone (almost white) and spaced them out with gravel in between. The gaps help with airflow, and the light color doesn’t soak up as much heat.
2. Watering down the patio in the hottest part of the day drops the temp for a while—not a permanent fix, but it helps if you’re out there grilling or whatever.
3. For greenery, I tried mini clover instead of thyme or moss. It’s tougher, and our dog ignores it. Not as pretty as moss, but it survives the chaos.
I still think shade wins overall, but if you can’t add a pergola or big umbrella right away, tweaking the ground cover and materials can buy you some comfort.
Interesting about the mini clover—hadn’t thought of that. I’ve been debating between gravel and decomposed granite for the gaps, but I’m worried about tracking stuff inside. Have you noticed any issues with gravel getting stuck in shoes or paws? Also, how’s the drainage been with your setup? My backyard’s got some low spots, so I’m trying to avoid puddles after rain.
I’ve been debating between gravel and decomposed granite for the gaps, but I’m worried about tracking stuff inside. Have you noticed any issues with gravel getting stuck in shoes or paws?
We went with decomposed granite for our side path, and honestly, it's a bit of a mixed bag. It compacts pretty well, so less gets tracked indoors compared to loose gravel, but after heavy rain it can turn a little muddy in spots. As for drainage, it's better than I expected—water seeps through unless it's a really big storm. If your backyard has low spots, you might need to grade or add a base layer first. Gravel definitely got stuck in our dog's paws, which was annoying. If tracking is a big concern, I'd lean toward the granite, but only if you can keep it packed down.