Roof Coating Excelsior

Flat roof restoration in Excelsior 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.

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

Excelsior, up close

Roof life in Excelsior is decided by exposure more than brand, and sea air corrodes anything unprotected and keeps north slopes damp. 335 miles northwest means a free inspection costs you nothing but an hour.

Crews rotate through Bernal Heights, Visitacion Valley and Glen Park, so the drive is routine.

• Solar gets detached and reset by a licensed crew, not improvised around.
• Where an HOA sets colour or material rules, we match the approved list before the job is quoted.
• Satellite dishes and A/C line sets are re-flashed, not just set back down.
• Tile is sorted and reused where it is sound, which keeps the roof looking original.
• Solar panels get detached and reset on a schedule that matches the roofing crew.

A roof opened in winter costs more and risks more, so we plan around the forecast. We will tell you if the Excelsior roof has years left in it rather than sell you a new one.

How long a Excelsior 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 Excelsior and nearby

We coat commercial and residential low-slope roofs throughout Excelsior and the surrounding San Francisco County communities, including Bernal Heights, Visitacion Valley and Glen Park.

When we tell you not to coat

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 Excelsior roof needs replacing instead.

Silicone or acrylic for a Excelsior 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 we look for on a Excelsior roof

Good candidates for coating tend to have:

• Chalky, sun-baked membrane that has lost its surface but not its body
• Low spots that hold water for days after a storm
• A roof with years left in the deck and insulation underneath
• Flashing and penetrations that leak while the field of the roof is still solid
• Seams and laps that have opened up and started weeping

Pricing a Excelsior 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.

Before, during and after

Edges are fastened to spec because that is where uplift starts.

• Ice-and-water goes in at the valleys and penetrations even though it rarely freezes here.
• Any rot found under the old layers is swapped before anything new goes down.
• Plants and pool equipment are covered before tear-off begins.
• You get a start date and a finish date in writing, and we hold them.

Get a Excelsior roof coating estimate

The estimate is free. Call (818) 277-6626 and we will measure your Excelsior roof, check the deck, seams and drains, and tell you plainly whether coating is the right call.

After the job in Excelsior

Before we quote we check the deck, the ventilation, the flashings and the drainage. Three of those four are invisible from the ground, and all four decide how long the roof lasts.

We do not use subcontract crews we have never met. The people on your Excelsior roof are the people we train, and they carry our workers' compensation.

Questions Excelsior owners ask us

Cheap work shows up at the details: a flashing sealed instead of replaced, a vent reused because it was quicker, decking covered because nobody wanted the conversation. Those are the roofs we get called back to in two winters.