Decking Around a Pool, and What Changes
Surface temperature, slip resistance and constant wet-dry cycling make a pool deck a different specification, even when the material looks identical.
Service
Capped composite and PVC boards over a code-framed structure, chosen for how they behave in full north Florida sun.
Composite decking is a manufactured board, usually wood flour and polymer with a hard cap layer, and PVC decking drops the wood content entirely. Both exist because of exactly the problem this climate creates: a wood deck in Gainesville faces roughly half a year of afternoon storms, near-constant summer humidity, and the fungi and insects that thrive in both. A capped board does not feed decay fungi, does not need stripping and re-staining every couple of years, and does not splinter as it ages. What it does do is get hot. Dark boards in unshaded full sun in July are uncomfortable underfoot, which is why colour selection here is a performance decision rather than a taste decision, and why the lighter tones in a range are usually the right call on a deck with no roof over it. The other thing worth understanding is that composite is a surface, not a structure. The frame underneath is still treated lumber built to the same code requirements, so the joist spacing has to suit the board the manufacturer supplied, expansion gaps have to be set at the spacing the instructions call for, and hidden fasteners have to be the system that board was designed around. A composite deck that fails almost never fails in the board.
In full unshaded sun on a July afternoon, dark composite is hot enough that most people do not walk on it barefoot. This is not a defect and it is not brand-specific, it is what a dense dark surface does under a north Florida sun. Two things fix it: choosing a lighter colour, which makes a real and noticeable difference, and putting shade over at least part of the deck. A deck that is used in the evening rather than at midday is far less affected either way.
It depends on how long you intend to keep the house and how you feel about maintenance weekends. Composite costs meaningfully more up front and roughly eliminates the stain-and-seal cycle, which in this climate is not a trivial saving of time. Treated pine costs less to build and needs cleaning and re-coating on a regular rhythm to look after itself. Over a long ownership the numbers converge; over five years they do not. The honest answer is that both are reasonable choices and the wrong one is the one bought without knowing which trade you were making.
Composite contains wood flour bound in polymer, usually with a hard cap on the outside. PVC has no wood content at all. PVC is lighter, tends to run slightly cooler than a comparable dark composite, and has nothing in it for fungi to feed on, which is a real advantage in a humid climate. It generally costs more and some people find it looks less like timber. Both are installed over the same treated frame and both come with detailed manufacturer instructions that determine joist spacing and gapping.
Any smooth surface is slick when wet, and in a climate with a daily summer storm cycle that matters. Where composite specifically causes trouble is when a shaded, damp deck grows a film of algae, which is common under a tree canopy here. It washes off with a cleaner made for the board and it comes back if the deck stays permanently damp. Textured board surfaces help, and so does keeping the deck clear enough of overhanging growth that it dries out between storms.
Sometimes, and only after the frame has been properly checked. The frame has to be sound, at the right joist spacing for the new board, and free of rot at the ledger, the post bases, and the joist ends. Reusing a frame that is fifteen years old to carry a surface with a twenty-five year warranty is a false economy, and any competent contractor will say so after opening it up. Where the frame is sound, resurfacing is a good value job.
Related Reading
Surface temperature, slip resistance and constant wet-dry cycling make a pool deck a different specification, even when the material looks identical.
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.
Other Work
Deck projects tend to arrive in pairs, because the yard is only opened up once. Shade goes up while the frame is accessible, stairs and a landing get sorted while the grade is already being worked on, and a surface gets replaced while somebody is under the deck checking the joists anyway.
A new deck designed for the yard it sits in, framed to the residential code and set on footings that reach undisturbed ground
Southern yellow pine, cedar, and tropical hardwood decks built with the treatment rating matched to where each piece sits
Roofs, screen rooms, and screened enclosures over a deck, which is what turns an outdoor space into one you use in July
Soft boards, rotted joist ends, loose ledgers, and failed post bases repaired after somebody has worked out why they failed
Call (352) 301-3643 or use the quote form for a free quote. A local deck company handles it from there.