ROOF COATINGSilicone & Acrylic

A cool roof coating turns a hot, chalked Castro roof into a sealed, reflective surface. 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.

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 we coat a roof in Castro

• 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

Serving Castro and nearby

We coat commercial and residential low-slope roofs throughout Castro and the surrounding San Francisco County communities, including Noe Valley, Haight Ashbury and Mission District.

The honest version

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 Castro roof needs replacing instead.

Pricing a Castro 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.

Castro, up close

Roofs in Castro do not wear out the way a brochure says they do, and sea air corrodes anything unprotected and keeps north slopes damp. From the shop it is a 337-mile run northwest to Castro, so emergencies get a same-day answer.

We know Noe Valley, Haight Ashbury and Mission District as well as we know Castro.

• We photograph every penetration before and after, so the file shows the work.
• Material is delivered the morning of the job, not left on the driveway for a week.
• Solar panels get detached and reset on a schedule that matches the roofing crew.
• 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.

A roof opened in October is a different job from one opened in January. Call and we will look at the Castro roof, show you photos, and put the price in writing.

How long a Castro 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.

What we look for on a Castro roof

Good candidates for coating tend to have:

• A roof with years left in the deck and insulation underneath
• Seams and laps that have opened up and started weeping
• 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
• Chalky, sun-baked membrane that has lost its surface but not its body

Standards we hold on every Castro job

Ventilation gets looked at while the roof is open; most Castro attics run hotter than they should.

• Change orders are discussed before anything is done, not billed afterwards.
• Rake and eave metal is new on every job; reusing bent metal is false economy.
• You get the manufacturer warranty on the materials and ours on the workmanship, both in writing.
• Payment is tied to progress, not demanded up front.

Get a Castro roof coating estimate

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