ROOF COATINGSilicone & Acrylic

Most Duarte flat roofs do not need tearing off — they need cleaning, repairing and sealing. Hillside exposure means long afternoon sun and the first of the Santa Ana winds, which is hard on a flat roof's surface and its flashings.

The coating process, step by step

• Inspect and measure, including core tests where we need to know what is under the membrane
• Clean the roof — power wash, remove dirt, chalk and loose coating
• Repair: cracks, open seams, failed flashing, blisters and bad penetrations
• Prime where the substrate calls for it
• Apply the coating in multiple passes to the specified thickness, seams and details first
• Final walk for even coverage and thickness, then clean up the site

The parts people ask about

You get a text when the crew is coming and a walk-through when they are done.

• Ice-and-water goes in at the valleys and penetrations even though it rarely freezes here.
• The quote lists materials and labour separately so you can see what you are buying.
• Drip edge and starter course get installed properly - that is half the wind resistance.
• You get a start date and a finish date in writing, and we hold them.

Pricing a Duarte roof coating

Because the work is additive, most buildings stay open and in use while we are on the roof.

Coating is priced by the square foot once we know the condition and how much prep the roof needs, and the number comes to you in writing before anything starts.

The Duarte version of this job

Roof life in Duarte is decided by exposure more than brand, and the grade means water moves fast and finds every lazy flashing detail. Our shop sits about 16 miles east of Duarte, so a crew is on site the same morning.

Bradbury, Monrovia and Irwindale are on the same route, which keeps follow-ups easy.

• Tile is sorted and reused where it is sound, which keeps the roof looking original.
• Gutters are pulled and refitted where they block a proper drip edge.
• Solar gets detached and reset by a licensed crew, not improvised around.
• Solar panels get detached and reset on a schedule that matches the roofing crew.
• We work around tenants and business hours where the building is occupied.

Book in the dry months and the whole job happens on dry decking. Everything starts with a free inspection and a written number for your Duarte property.

Two coating systems, one right answer

• Silicone: the pick for roofs that pond. It handles standing water, resists UV without turning brittle, and lasts longest of the two.
• Acrylic: the pick for roofs that drain clean. Lower cost per square, excellent reflectivity, and easy to recoat later.
• Both go down seamless, so there are no laps or fasteners for water to work into.
• Both drop the roof surface temperature sharply, which shows up on the cooling bill of a conditioned building.

How long a Duarte roof coating lasts

A silicone system at the right thickness over a properly prepped roof gives you ten years and up, and acrylic is close behind on a roof that drains well. Both systems are renewable: when the time comes you wash the roof and add another coat instead of starting over, which is why building owners keep coming back to them.

Serving Duarte and nearby

We coat commercial and residential low-slope roofs throughout Duarte and the surrounding Los Angeles County communities, including Bradbury, Monrovia and Irwindale.

Does your Duarte roof need coating?

Good candidates for coating tend to have:

• A roof with years left in the deck and insulation underneath
• Chalky, sun-baked membrane that has lost its surface but not its body
• Low spots that hold water for days after a storm
• Flashing and penetrations that leak while the field of the roof is still solid
• A building that cooks in summer and runs the air conditioning hard

When we tell you not to coat

A coating needs a dry, sound roof underneath. When a Duarte roof does not have that, the honest answer is a replacement, and we will quote it that way.

Ready to look at your roof

The estimate is free. Call (818) 275-0921 and we will measure your Duarte roof, check the deck, seams and drains, and tell you plainly whether coating is the right call.