AJAJ ShadesVeteran Owned

SUNBRELLA FABRICS

Shade Guide

How Much Shade Will Your Awning Give at 3 PM?

The sun drops, the shadow creeps back to the wall, and your patio is sunny again. The shade-coverage math that decides where the shadow lands - text (909) 325-3110 for a free estimate.

Call Richard: (949) 378-6642

Se habla español

Prefer text? Text AJ Shades at (909) 325-3110

Our team has earned 605 five-star reviews.

Veteran
Owned
American
Made
15-Year Warranty
on awnings & screens
605
five-star reviews
Licensed
CSLB #951583

Here is the disappointment we prevent on every estimate: the awning goes in, and at noon the patio is beautifully shaded - wall to wall, furniture to furniture. Then 3 PM arrives, the sun swings west, and half the patio is back in blinding sun. The awning did not shrink. The sun just moved, and nobody did the math on where the shadow would land when it did. Shade is not a property of the awning; it is a property of the awning plus the sun’s position at the hour you actually use the patio.

The geometry is simpler than it sounds. A retractable awning is a plane of fabric tilted off your wall. The shadow it throws lands on the patio at a distance controlled by three things: how far the fabric reaches (projection), how high it sits (mount height), and how low the sun is (time of day). At noon in a SoCal summer the sun rides near 78 degrees - almost overhead - and the shadow lands nearly straight below the fabric. By 4 PM the sun has dropped to around 40 degrees and swung hard west, and the shadow stretches sideways and creeps back toward the wall. The outer edge of your patio goes sunny again, exactly when the heat is worst.

This is why projection is the money dimension. Width shades the wall; projection shades the patio. A 20-foot-wide awning with 8 feet of projection throws a long wall of shade that barely reaches your chairs. A 16-foot-wide awning with 11 or 12 feet of projection puts the shadow where people sit. When homeowners tell us a previous awning “didn’t shade enough,” the width was almost never the problem - the projection was. Our projection and sizing guide walks through how we pick both numbers.

Where the shadow lands

Three inputs that decide your shade footprint

First: projection, the reach dimension. Rough rule of thumb for a south-facing wall: the shadow extends outward about as far as the front bar’s height above the patio, minus the bite the sun angle takes. For a west-facing wall in the afternoon, even modest projection blocks the low incoming sun - the sun comes in sideways, so the fabric’s full height intercepts it. This is why west-facing patios - the hottest, most-used patios in Orange County - get the best shade return from every foot of projection.

Second: mounting height, which works against you. Higher mounts let more sun sneak under the front bar. At a 45-degree sun angle, a front bar at 10 feet throws the shadow’s outer edge nearly 10 feet back toward the house. Drop the front bar to 8 feet and the shadow pushes outward by roughly two feet - the difference between shaded chairs and sunny chairs. We mount as low as headroom allows for exactly this reason, and on adjustable-pitch systems we can steepen the angle in summer to buy back more ground.

Third: orientation, which decides the schedule. West patios need afternoon shade against low, brutal sun - awnings excel here. South patios need midday-to-afternoon shade and reward bigger projection. East patios get gentle morning sun and are the easiest to satisfy (see our east-facing guide). North patios rarely need an awning for sun control at all. The same awning performs completely differently on each wall, which is why the orientation question comes before the size question on every estimate.

One honest note on geography: we install premium retractable awnings across San Diego, Los Angeles, Orange, Riverside, and San Bernardino counties - the five-county territory where our own crews do the work. Outside Southern California, our products are available through our dealer network rather than our install teams. Inside our territory, every awning carries our 15-year warranty, and every estimate runs the shade math - wall height, orientation, seating position, projection - before anything gets sized. Browse all our shade guides or text (909) 325-3110 to start with a free written estimate.

Shade coverage FAQ

Sun-angle questions, answered

Why does my patio have less shade at 3 PM than at noon?
Because the sun drops. At solar noon in a Southern California summer, the sun sits high - around 75 to 78 degrees above the horizon - and an awning's shadow lands almost directly beneath it. By 3 or 4 PM the sun has dropped toward 40 degrees and swung west, so the same awning throws its shadow sideways and short: the shadow creeps back toward the wall and the outer half of the patio goes back into full sun. Projection - how far the awning reaches out - is what fights this, not width.
How does awning projection affect the shade footprint?
Projection is the reach, and reach is what puts shade where people sit. A wider awning shades a wider wall but does not push the shadow any farther out - only more projection does that. The rule of thumb we use: the shadow lands roughly as far from the wall as the front bar is high, minus what the sun angle steals. That is why a 10-foot projection over a deep patio matters more than a 20-foot width for afternoon comfort.
Does mounting height change how much shade I get?
Yes, and it works against you: the higher the mount, the more the sun sneaks under the front bar. A mount at 10 feet with the sun at 45 degrees lets the shadow creep nearly 10 feet back toward the house. Mounting lower - as low as head clearance allows, typically around 8 feet at the front bar - pins the shadow closer to the patio's outer edge. This is one reason we mount as low as the code and your headroom allow, and why we adjust pitch seasonally on jobs where it matters.
Which direction should my awning face for the most shade?
West-facing patios get the most shade-hours from an awning because the brutal afternoon sun comes in low and sideways, where even a modest projection blocks it. South-facing patios get good midday shade but need more projection to hold it into the afternoon. East-facing patios need shade mainly in the morning, when the sun is gentle - our east-facing guide covers that case. North patios barely need awnings at all for sun control, though glare can still be a factor.
Can one awning shade both my patio and my windows?
Often, yes - and it is one of the best uses of the shade-coverage math. An awning mounted high enough to shade the patio also throws shadow onto the wall and windows behind it, which is how it cuts cooling load inside the house. We size and pitch so the shadow covers the glass during the hottest hours, not just the patio furniture. Our energy-savings guide breaks down how that exterior shade lowers cooling bills.
Do you calculate the shadow before the install?
We do it on every estimate. We measure the wall height, note the orientation, look at where the seating actually sits, and size the projection so the shadow lands where you are during the hours you are out there. It is a simple set of measurements, but it is the difference between an awning that shades the wall and an awning that shades your life. No guessing, no hoping - the numbers come first.
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Get the shadow where you sit.

Free estimate on a premium retractable awning backed by our 15-year warranty - with the shade-coverage math done before anything is sized.

Text AJ Shades

(909) 325-3110

Call Richard: (949) 378-6642

Se habla español

Built by Family. Designed for Yours.

Veteran
Owned
American
Made
15-Year Warranty
on awnings & screens
605
five-star reviews
Licensed
CSLB #951583
Call RichardSe habla españolText AJ Shades(909) 325-3110