ROOF COATINGSilicone & Acrylic

In Potrero Hill, coating a low-slope roof costs a fraction of replacing it and stops the leaks the same week. 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.

When coating is the wrong call

Coating is not for every roof. If the deck is soft, the insulation is wet or the membrane is finished, a coating only hides the problem — we will tell you the Potrero Hill roof needs replacing instead.

What changes on a Potrero Hill roof

We work on Potrero Hill roofs most weeks, and the pattern is consistent: fog drip keeps the north side wet long enough to grow moss. Being 335 miles northwest of Potrero Hill, we can be on the roof before the next rain band arrives.

We are in Mission District, Dogpatch and Bernal Heights constantly, and the housing stock is much the same.

• Satellite dishes and A/C line sets are re-flashed, not just set back down.
• Tear-off debris leaves the same day; nobody is left with a pile over the weekend.
• Gutters are pulled and refitted properly instead of being crushed by a ladder.
• Solar gets detached and reset by a licensed crew, not improvised around.
• Skylights are re-flashed as part of the job rather than quoted as an extra later.

Dry-season work books up fast, so the calendar tightens once the first storm forecast lands. If a repair solves it, we quote the repair instead of selling a replacement.

Silicone or acrylic for a Potrero Hill 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.

Serving Potrero Hill and nearby

We coat commercial and residential low-slope roofs throughout Potrero Hill and the surrounding San Francisco County communities, including Mission District, Dogpatch and Bernal Heights.

How we coat a roof in Potrero Hill

• 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

Pricing a Potrero Hill roof coating

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.

What you can expect from us

Any rot found under the old layers is swapped before anything new goes down.

• We do not ask for large deposits before material is delivered.
• Nothing is left on the lawn overnight, and the dumpster goes when the job ends.
• One person runs your job and answers the phone the whole way through.
• Ice-and-water goes in at the valleys and penetrations even though it rarely freezes here.

When coating makes sense in Potrero Hill

Good candidates for coating tend to have:

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

Lifespan and recoating

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.

Ready to look at your roof

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