Lattice vs Solid Patio Cover: Brownsville Shade Guide

Lattice gives you roughly 40 to 70 percent shade and zero rain protection; a solid cover gives you 100 percent of both and takes some daylight from the rooms behind it. That's the entire tradeoff. Everything else in this decision is price and personal preference.

The 40-to-70 number is honest and it's also slippery, because lattice shade moves. The chair that was perfectly shaded when you sat down at two o'clock is in full sun by four, which is a fact of geometry rather than a design flaw, and it's the thing nobody mentions in the showroom.

Head to head

	Lattice (open blades)	Solid / W-pan
Shade	~40–70%, shifts through the day	100%, fixed
Rain	Passes through	Keeps you dry
Airflow	Excellent	Good, but reduced
Light into rooms behind	Barely affected	Noticeably reduced
Ceiling fan, lights, TV	Awkward	Easy
Installed cost	~$15–$30/sq ft	~$20–$40/sq ft, $30–$60 insulated
Noise in rain	None to speak of	Drums, unless insulated

The one-line version: lattice is a filter, solid is a roof. If your complaint is glare, lattice handles it. If your complaint is heat, rain, or "we can never eat out here," you need the deck.

What the shade percentage actually depends on

Lattice shade isn't a fixed product spec, it's a function of two things you get to choose.

Blade width. Wider blades block more sky per blade. Common aluminum lattice blades come in a few widths, and the wider profiles push you toward the top of that 40 to 70 percent range.

Spacing. Tighter spacing means more blades, more shade, and more material cost. This is the dial most people don't realize they can turn. If a quote comes back with standard spacing and you want more shade, ask what tighter spacing costs before you jump to a solid deck — sometimes it's a few hundred dollars and it solves the problem.

What tighter spacing will never do is stop rain. Water finds a 2-inch gap with enthusiasm.

What "solid" actually means

Solid aluminum covers come in two main profiles and one upgrade, and the differences are structural rather than cosmetic.

• W-pan panels use an inverted-W shape that stiffens the deck and drains water down inside the pan itself. That's why a W-pan can commonly span 8 to 14 feet with no support underneath it.
• Flat-pan or solid-pan looks cleaner from below but is less inherently rigid, so the same span usually wants more beams.
• Insulated foam-core panels put an EPS or polystyrene core between two aluminum skins, in 3, 4 or 6 inch thicknesses, landing around R-11 to R-24. This is also the version that stops the roof sounding like a snare drum in a downpour.

The insulated upgrade is a separate decision with its own math, and we work through it in the insulated patio cover cost guide rather than repeating it here.

The regret nobody warns you about

Here's the pattern. Someone puts a solid cover over the patio directly outside a sliding glass door. The patio is transformed. The kitchen behind it, which used to get afternoon light through that door, now needs a lamp on at 3 p.m. in June.

A solid roof doesn't just shade the patio, it shades the wall of your house behind it. That's a feature if the room bakes and you're paying to cool it. It's a real loss if that room was the bright one. Walk out there, look at what's behind the patio, and think about it for five minutes before you sign anything.

Combination covers: the option nobody offers you

The fix is obvious once you've seen it and almost nobody suggests it: build one structure with a solid section over the part you want dry — the table, the grill, the seating — and lattice over the rest, especially the section nearest the windows.

You get rain protection where it matters, full daylight to the glass, and a structure that looks deliberate rather than compromised. It costs a bit more than either single version because it's two roof systems in one frame. It is the most underrated product in this entire category and the reason is straightforward: it's marginally more work to quote and easier to sell one panel type.

Louvered systems, briefly

If budget genuinely isn't the constraint, motorized louvered covers from Struxure, Equinox and similar makers do both jobs. Blades rotate open for airflow and dappled light, then close to a watertight roof, and many include rain sensors that shut them for you while you're out. They run roughly $80 to $150-plus per square foot, which for a 12x20 is a number with a different first digit than everything else on this page. Terrific product. Not the value pick, and anyone pretending otherwise is working on commission.

The structural part applies to both

Whichever roof you pick, the skeleton underneath is the same job. Post footings commonly run 12 to 24 inches in diameter and 18 to 36 inches deep, with frost depth driving the number in cold markets, sitting on Simpson-style bases that hold the post up off the concrete. Attached covers hang from a ledger fastened into the house band joist, and that ledger has to be flashed properly — badly flashed ledgers are the leading way a patio cover causes a rot problem in the wall behind it.

One difference worth knowing: a solid deck catches wind that lattice lets through. Solid covers are engineered for higher uplift, which typically means heavier members and more substantial anchoring. Design wind speeds under ASCE 7 as adopted locally commonly fall in a 90 to 140 mph range, with much higher requirements in coastal high-velocity hurricane zones, and snow load taking over in northern markets. Confirm your own jurisdiction's numbers. It's also why converting a lattice cover to solid later isn't just a panel swap.

When lattice is obviously the right call

If you only use the patio in the evenings, buy lattice and put the difference in your pocket. Solid roofing is a daytime product. Its job is blocking sun at 2 p.m. and rain in a shower. After sunset, lattice and solid feel nearly identical apart from the rain, and you'll have saved roughly $5 to $15 a square foot — about $1,200 to $3,600 on a typical 12x20.

Same answer if the patio is primarily an architectural feature, if you have climbing plants in mind, or if the space is a walkway between the house and a pool rather than a room. Lattice is the cheaper option and often the better-looking one. We'll say that out loud even though the solid cover is the bigger invoice.

And if you're weighing an open structure more broadly, the pergola vs patio cover breakdown covers that comparison from the structure side.

Bottom line

Lattice for filtered light, airflow, budget and evening use. Solid for heat, rain, and anything you plan to mount overhead. Combination when the patio sits in front of windows you like, which is more often than the industry admits.

Brownsville Elite Patio Covers builds aluminum lattice and pergola structures, insulated solid-roof covers and full outdoor living spaces across Brownsville and the Brownsville area, engineered and permitted for local loads. Tell us how you use the patio and we'll tell you which roof it needs, including when that's the cheaper one. Call (844) 511-2320.