Sentinel Roof Works — PerrisVetted Perris roofing crews, no obligation to hire.(951) 418-3407Get my price

Perris, CA

Flat and low-slope roofing in Perris

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 Perris contractors who do this work.

Or call (951) 418-3407

Free · Up to three quotes

Describe the flat roofing job

Three questions, then the address. Up to three Perris 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.

Nothing is charged and nothing is booked.

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.

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

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.

Modified bitumen is the rolled, torched or self-adhered system you see on older flat additions. Cheaper, and shorter-lived.

Locally

Close behind that: 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

What should I do to prepare?

Clear the driveway, protect attic storage from falling dust, and plan for two loud days. Agree in advance where the dumpster goes and who sweeps for nails.

How long does a re-roof take?

Two days is typical for asphalt. Add days for steep pitch, multiple layers to strip, tile work, or a roof with a lot of valleys and penetrations.

What if the decking is rotten underneath?

Some of it usually is. The important thing is that the price per sheet is agreed in writing before the tear-off, so the conversation on day two is about quantity rather than rate.

Why three quotes and not one?

Because one price tells you nothing. Three tells you where the middle is, and the outliers are informative in both directions — the very cheapest is usually leaving something out, and the most expensive should be able to say what you are getting for it.

Start with a free estimate

It is free, and nothing obliges you to hire anyone.

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