ROOF COATINGSilicone & Acrylic

Flat roof restoration in Portola starts with prep, not product. Salt air, marine layer and long damp mornings keep a low-slope roof wet longer, so seams and ponding spots are where the trouble starts.

What roof coating costs in Portola

A coating runs well under the cost of a tear-off and replacement, and there is no dumpster, no demolition and no days of noise over the tenants' heads.

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.

Why Portola roofs fail where they do

Before materials come into it, the site decides the job: in Portola, salt air and long damp mornings keep fasteners and flashings working hard. Being 334 miles northwest of Portola, we can be on the roof before the next rain band arrives.

Jobs in Excelsior, Bayview and Visitacion Valley run alongside this one most weeks.

• Gutters are pulled and refitted properly instead of being crushed by a ladder.
• Chimney and wall flashings are replaced, not painted over with sealant.
• Tear-off debris leaves the same day; nobody is left with a pile over the weekend.
• Access gets planned first - driveway, staging, dumpster placement - so the street stays usable.
• Solar panels get detached and reset on a schedule that matches the roofing crew.

Insurance work moves faster when the damage is documented before the next storm. If a repair solves it, we quote the repair instead of selling a replacement.

The honest version

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

Does your Portola roof need coating?

Good candidates for coating tend to have:

• Seams and laps that have opened up and started weeping
• A building that cooks in summer and runs the air conditioning hard
• Flashing and penetrations that leak while the field of the roof is still solid
• Low spots that hold water for days after a storm
• Chalky, sun-baked membrane that has lost its surface but not its body

Choosing the system for your Portola roof

• 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.

What you can expect from us

A hot attic shortens any roof, so the venting is part of the quote, not an upsell.

• Nothing is left on the lawn overnight, and the dumpster goes when the job ends.
• The written warranty names what is covered and for how long, with no asterisk games.
• Underlayment is where corners get cut; we use the system the manufacturer warrants.
• You get a text when the crew is coming and a walk-through when they are done.

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

How long a Portola 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 Portola and nearby

We coat commercial and residential low-slope roofs throughout Portola and the surrounding San Francisco County communities, including Excelsior, Bayview and Visitacion Valley.

Talk to a Portola roof coating contractor

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