Keystone Roofing Co.Roof repair and replacement across San Juan Capistrano, CA.(949) 868-1671Get my price

San Juan Capistrano, CA

Flat and low-slope roofing in San Juan Capistrano

Flat sections on an otherwise pitched house are where the leaks are. Additions, porch roofs, and the bit over the garage.

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Describe the flat roofing job

Three questions, then the address. Up to three San Juan Capistrano contractors who do this work.

Or call (949) 868-1671

No obligation · No cost to you

Describe the flat roofing job

Three questions, then the address. Up to three San Juan Capistrano contractors who do this work.

Step 1 of 6

What best describes your home?

Different buildings need different crews, so this is the first thing a roofer asks.

No fee, no obligation, nothing to cancel.

Before you let anybody on the roof

The things worth pinning down on a flat roofing job. A contractor who has not raised them has not looked properly.

  • How the flat section is flashed into adjoining walls and pitched roofs
  • Whether water ponds anywhere after rain
  • Whether a coating is being sold as a repair
  • Drain, scupper and overflow provision
  • Which membrane, and how the seams are joined

Single-ply membranes — TPO, PVC, EPDM — are heat-welded or taped at the seams. The seams and the terminations are the whole job.

Ponding water is the enemy. Anything still sitting there forty-eight hours after rain is a design problem, and tapered insulation is usually the answer.

Drains and scuppers need to be checked every season. One blocked drain can hold enough water to matter structurally.

Locally

Behind it: the autumn offshore winds, which find anything already loose. These winds are not constant, which is the problem. A roof gets nine quiet months and then one night at fifty miles an hour, and whatever was marginal goes.

About flat roofing here

How long should a roof last here?

Rated life and real life are different numbers. Here, salt and sun together tend to take the low end of any rated life. Ventilation and the quality of the installation move that more than the brand does.

I have solar panels. What happens to them?

They come off and go back on, and that is a separate cost, often handled by the solar installer rather than the roofer. If the roof is near the end of its life, do the roof first — removing and refitting panels twice is money wasted.

Are the contractors licensed and insured?

Contractors have to give us their state licence number and proof of liability and workers compensation cover before they can receive requests. You should still ask to see current certificates yourself before work starts — a licence can lapse between checks.

Is moss on the roof a problem?

It matters more than it looks. The damage is not the moss, it is the permanent damp underneath it. Kill it and brush it off gently; never pressure wash asphalt.

Get the roof looked at

Three questions, about a minute, and up to three San Juan Capistrano contractors come back to you.

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