Redline Roof ProsFree roof inspections for Whittier homeowners.Join the list

Whittier, CA

Flat roofs do not shed water. They hold it back.

Almost every flat roof problem is a drainage problem wearing a disguise. Standing water finds the one seam that was not welded properly.

Describe the flat roofing job

Three questions, then the address. Up to three Whittier contractors who do this work.

Free · No obligation

Join the Whittier list

No company gets your details until you say yes to it by name.

Step 1 of 6

What best describes your home?

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

Free, and no obligation to anyone.

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.

  • Which membrane, and how the seams are joined
  • 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

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

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

Look at the flashing where the flat section meets a wall. That transition leaks far more often than the field of the membrane does.

Locally

Then, less dramatically: the marine layer keeping the north slope damp. Slopes that never get direct sun stay wet for hours after the fog burns off, and that is where moss, lifted shingles and soft decking start.

About flat roofing here

Is this really free?

It is free to you. Contractors pay to receive homeowner requests in their area. That is the entire business model, and we would rather say so plainly than pretend otherwise.

It is leaking right now. What do I do?

Move what you can out of the way, put a bucket under it, and if there is a bulge in the ceiling put a small hole at its lowest point to let the water out in one place rather than bringing the whole panel down. Then mark your request as an emergency — those go out first.

Should I repair or replace?

It depends almost entirely on how much life is left in the material. Ask any contractor who inspects it to give you a number of years and a reason. If two of them independently say the same thing, believe it.

How much deposit is normal?

Ten to thirty per cent is ordinary, and is often used to order material. A demand for full payment up front is a reason to walk away.

Get the roof looked at

Free, no obligation, and your details go to no company until you say yes.