Old Mill Roofing Co. of CoronaVetted Corona roofing crews, no obligation to hire.Free estimate

Guide

What to do, and when

You cannot maintain your way out of old age, but you can comfortably add five years to a roof that is otherwise sound.

Guide7 sections1 min readCorona, CA

Get it looked at

Three questions, and up to three Corona contractors. Free either way.

Free estimate · No obligation

Get it looked at

Three questions, and up to three Corona contractors. Free either way.

Step 1 of 6

What best describes your home?

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

Free. You are not committing to anything.

Clear the gutters before the wet season

Gutters full of grit are not just a drainage problem — the grit is your roof, and its presence tells you something about how far along the covering is.

Cut back anything touching the roof

Branches abrade the surface in wind and drop debris that holds moisture. Keep growth well clear of the covering, and clear of the gutters while you are at it.

Keep the penetrations honest

Rubber pipe boots are the single most common source of leaks on an otherwise sound roof, and they are cheap to replace before they fail.

Twice a year, from the ground

You do not need to be on the roof to find most problems. A slow lap of the house at a low angle finds nearly all of them.

Deal with growth properly

Moss and algae hold water against the surface. Treat and brush gently, or fit zinc or copper strip near the ridge. Never pressure wash an asphalt roof — it strips the granules and takes years off it in an afternoon.

Look in the attic after heavy weather

Check after the first real weather of the season rather than at the end of it. A small stain found in autumn is a cheap repair; the same stain found in spring is not.

In short

None of this is difficult and none of it is expensive. It is simply the difference between a roof that reaches its rated life and one that does not.

Related questions

Should I take the cheapest quote?

Not automatically. Put the quotes side by side on layers, not on totals — underlayment, ice-and-water, drip edge, valley treatment, ventilation, decking allowance, warranty. Cheap usually means less of those, not the same roof for less money.

Can I just put a new roof over the old one?

Codes in most places allow two layers. That does not make it wise. You lose the chance to see the deck, and the next roofer has twice as much to remove.

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.

Find out what it costs

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