How Hot a Dark Composite Board Really Gets Here
Surface temperature is where composite decking loses to wood in north Florida, and colour matters more than brand. What to expect on an unshaded lot.
The most common complaint about composite decking in Florida is not durability, appearance, or price. It is that it is hot underfoot.
This is worth being straight about. A dark composite board in full unshaded sun on a July afternoon in Alachua County gets hot enough that most people stop walking on it barefoot. That is not a defect in any particular product and no manufacturer escapes it. It is what a dense, dark surface does under this sun.
Why it happens
Dark surfaces absorb more of the solar energy that hits them. Composite is denser than wood and holds that heat, so it warms up more and stays warm longer. Wood is less dense and its surface runs cooler in the same exposure, which is a real point in wood’s favour on an open lot and rarely mentioned in a showroom.
What changes it
Two things, and one of them is free at the point of choosing.
Colour. The difference between a dark grey or espresso board and a light grey or sand board is noticeable underfoot, not marginal. If the deck has nothing over it, the lighter end of a range is the sensible choice and it costs the same.
Shade. Under a roof, a pergola with the rafters oriented correctly, or existing canopy, surface temperature stops being a factor at all. This is the more complete fix and it solves the other summer problem at the same time, which is that an unshaded west-facing deck is unpleasant to sit on whatever it is made of.
What does not change it
Cleaning it, sealing it, or choosing a different brand at the same colour. Some product ranges claim cooler formulations and there is some real engineering behind those claims, but colour and shade dominate the outcome by a wide margin.
Where it matters most
On the open, treeless lots common through Newberry and the Jonesville corridor, and on any west-facing deck with nothing overhead. On a shaded lot under mature canopy, none of this applies and colour becomes a purely aesthetic decision again.
The honest summary
If you want composite and the deck will be in full sun, pick a light colour and plan some shade. If you want a dark board, put it somewhere shaded. And if neither is possible, wood runs cooler and that is a legitimate reason to choose it.
The composite or wood comparison covers the full trade, and the materials guide compares all five surfaces.
Want a price on the deck you have in mind?
Ring (352) 301-3643, or send the quote form and a local deck company will get back to you.