Roofing Advice
From the Field

Underlayment down as fast as we can, no new sections, more hands on the roof. How we handle rain mid-job, with a Rancho Cucamonga lift and relay open this week.

An older S concrete tile roof with leaks in more than one spot. Instead of chasing them, the whole roof gets new TileSeal HT and valley metal under the same tile.

Tile crowded into the valleys dammed the water, and the felt underneath was gone. New Spyder PSU to the deck, the valley metal back on top, done the same day.

A few leaks, old paper that was shot, and a budget. The tile came off, new Titanium PSU30 went down, and the same tile went back on in five days.

After the first big storm, everybody calls their insurance company at once, and the adjuster can be weeks out. What California's rules require, what the water does while you wait, and how to protect your house in the meantime.

Remodel first, line of credit tapped, then the old roof leaks into the new kitchen. Why the roof goes first and what a tarp can't do.

The wind knocked tile off the second story onto the roof below, and the dew got in before the rain did. Why a falling tile is also a hazard, and why we nail every tile.

An active leak, a roof installed with nails that were too short, and a signed job put on hold for an insurance claim. It rained hard, the claim was denied, and the repair got bigger.

Old shingles lose their granules and get light. Three tab doesn't have the weight or adhesive. A bad repair lets go. And a starter strip keeps the roof edge down.

Every one of 40 panels has to come off before the new roof, then go back on. Why panels end up on old roofs, and why the roof should always go first.

Handymen kept sealing a tile roof leak in Hemet. Under the tile the deck was rotted. New decking, TileSeal HT and the tile back on, done surgically.

Catch the water in the attic so it never reaches the drywall. A tip, not a repair, and read the safety notes first: the attic is full of nail points.

A Portland grocery store case started with water dripping from a parking deck drain. What a roofer takes from it for shops, offices and multiplexes with flat roofs.

Tile lifted and stacked, the deck opened, TileSeal HT underlayment and new metal underneath, and the same tile back on. Day by day, with photos.

Five things I check before I trust a roofer: the special they advertised, the small print, their insurance, how they showed up, and whether the scope says anything.

A leaking roof at the end of its life, a full tear-off with new underlayment, the chimney flashing redone, and Owens Corning Duration COOL on top.

BusinessRate ranks GAX Roofing #1 of 30 roofing contractors in Rancho Cucamonga for September and October 2026, and #1 in 91701 three months running. What the score measures and who earned it.

A leaking roof at the end of its life, a board deck under the old shingles, and Owens Corning Duration COOL on the whole house. The job story, start to finish.

The Malarkey shingle we install, the cool colors that meet California's Title 24 reroof rule (one of them is a black), and the three reasons we use it.

Yes, we work on clay. Why clay takes more care than concrete, why a cracked clay tile is never a sealant job, and how to choose between a repair, a relay, new clay or concrete.

NOAA puts the odds of the strongest El Niño on record at 70 percent. What that means for Inland Empire roofs, and why a roof that is already done should be replaced before the storms line up.

TileSeal HT, Titanium PSU30 and Spyder PSU carry three different manufacturer warranties. Years, proration, transfer, exclusions and claim deadlines, straight from the papers.

Seamless aluminum formed on site, the fascia it hangs on, the drip edge that feeds it, and what the granules in your gutter say about the roof.

Who takes the panels off (a licensed C-10 or your solar company), why ownership and your solar warranty decide it, and who covers what after the panels go back on.

California's default rule on who pays for an HOA roof, why your CC&Rs can change it, what the committee has to follow, and what a board should ask before it hires a roofer.

An Etiwanda homeowner wanted a modern refresh, and the roof came first. Old Monier tile off, TileSeal HT down, new Westlake Royal tile on, with the drone up for every step.

Most sound tile roofs need new underlayment, not new tile. When new tile is the right call, and why this Etiwanda homeowner chose it.

Etiwanda is Rancho Cucamonga, but the foothills change things. Santa Ana wind, the fire zone and the Class A rule, the reroof permit, and relay vs replace.

The five second check that beats every visual test, nine things that cannot happen on a real roof, and the excuse that will talk you out of the best evidence you have.

Every job photo on their Google page was generated by AI. Here is how to check any roofer's photos yourself in about two minutes, and the one line to make every bidder put in writing.

Everyone pictures the tile. The roof is what goes under it. The whole install in the order it happens, from the framing question to the city sign-off, plus what to ask any tile roof installer.

How we find a leak before anyone lifts a tile: listen first, fly the roof, match the two. The Huntington Beach front-door leak, and why the drone points but never confirms.

A Huntington Beach home leaked at the front door every rain and the tile was fine. Water off the second story was splashing back under the roof-to-wall flashing. Why a patch would not hold and how the section got real waterproofing under the tile it already had.

This house was carrying two roofs, one over the other. Both came off, the deck got looked at in daylight, and an Owens Corning cool roof went on with more ventilation than before. Why the layers mattered and what the homeowner noticed first.

Concrete tile weighs about three times what a shingle weighs, and Rancho Cucamonga publishes a number where an engineer gets involved. What that means for your reroof, what we look for in the attic, and why we will not put tile on a house framed for shingles.

An aerial measurement gets your square footage and pitch right. It has never photographed your underlayment, your deck, or your flashings, which is where the price actually lives. How to read a quote from somebody who never came out.

"Can you just go over the old shingles?" Sometimes it is legal. It is almost never smart. California's two-layer rule, an honest side-by-side, what an overlay hides, and the bill that shows up a few years later.

A Colton tear-off uncovered shingles laid over bone-dry wood shake from an old layover. The bottom layer crumbled under the crew's boots. What layovers hide, and what a full resheet involves.

A chimney wearing several contractors worth of mastic, two days of Marie rain, and a leak that was never a mystery. Why caulk always loses, and our all-new-flashings rule on every reroof.

Ridge caps crack straight down the middle as they age, and once the ridge is exposed, water travels the whole line. Real before and after from an Upland roof, plus a check you can do from the ground.

Two days of Hurricane Marie rain, a phone that would not stop, and zero warranty calls. Why every roof is fine until the drywall stains, and why that estimate from last year will not hold up.

The first SoCal rain does not cause roof problems, it finds them. The pre-season checklist for Inland Empire homeowners: pipe seals, cracked tiles, and granules, in that...

Wind is covered on a lot of homeowners policies, but the adjuster still needs proof. How we photograph wind damage from Fontana to Hemet to Riverside, and when a claim is not...

Original skylights fail slowly and politely, right up until they leak. Why the foggy dome from the 90s costs you light and heat, and why mid-reroof is the perfect time to replace...

He just moved into his Riverside home and reroofed it before it ever leaked. Why buying the roof once, on your schedule, at today's prices, is the smartest play in...

Most failed repairs are not bad work, they are good patches in the wrong place. Why repairs aimed at the stain miss the source, what a second opinion with instruments looks like, and the three questions to ask before paying for any repair.

Water travels along rafters and underlayment before it ever touches your ceiling, so a repair aimed at the stain misses the source. Real thermal shots from a Fontana repair call, and the process that puts the fix where the water actually gets in.

Everyone claims the title. Here are the five checks that settle it: the CSLB license, the review record, the independent data, the documentation, and the questions that make weak bids get vague. Run every roofer through them, including us.

A homeowner asked five sharp questions about their $42,000 tile quote before signing: flashings, deck repair allowance, Westlake tile choice, the Rancho Cucamonga permit, and what the 10-year labor warranty actually covers. All answered in writing.

Solar panels on a tired roof is the most expensive sequencing mistake in home improvement. Why the roof comes first, and how GAX seals panel zones in Eastvale, Corona, and Fontana...

One piece of paperwork tells you everything about a roofing contractor. What an owner-builder permit really means, why unlicensed operators love it, and the five minute check that...

A full tile replacement in Bloomington: the Eagle showroom field trip, a flat concrete tile in the gray range, the two week manufacturing wait nobody warns you about, and a four...

Eagle rates concrete tile for 75 years, so why do Inland Empire tile roofs leak? The underlayment is the bottleneck. What we find under tiles in Riverside, Eastvale, and Yorba...

A Riverside homeowner turned roof wear into a weekly chore. What granule loss means, the shiny-fiberglass tell, and the ridge-vented replacement that ends the sweeping.

Tile and shingle shed water downhill. Put them on a flat section and the water backs up under the overlaps instead. The rotted patio deck we found in Riverside tells the rest.

Half the tiles on some older roofs were never nailed at all. What spot nailing is, how it turns into leaks, and how to spot the creep from your own driveway.

A Jurupa Valley inspection found the ridge dressed in cut-up field shingles instead of real caps. Why that old shortcut fails first, and what a shiny roof is telling you.

The valley funnels all your roof water to one channel. When tiles crowd into it they dam up, debris packs in, and water backs up under the roof. What a valley should actually look like.

The rule everyone quotes is Florida law, not California. What actually decides repair versus replacement here: two layers max, deck condition, shake resheets, and the Title 24 energy trigger.

A lift and relay during a 100-degree week: the attic had nowhere to send its heat, so we are adding additional O'Hagin vents while the tiles are up. Why that matters for your AC and your roof.

Material, labor, tear-off, and a permit that runs $200 to $600 depending on the city. What is in each bucket, why we do not mark up the permit, and what a suspiciously cheap bid quietly took out of your roof.

Picking tile off a catalog page is guessing. Eagle's plant in Rialto has them laid out in the sun, they let you take about six home, and while we are standing there I ask the rep how long your order actually takes.

The drip edge is the cheapest metal on your roof and it protects some of the most expensive wood on your house. What it does, the sun problem nobody warns you about, and how to check your own roof edge from the driveway.

A dispatch from the middle of a Pomona job. Narrow streets and double carrying, why we never drop OSB into a tongue and groove deck, why the magnet comes out every single day, and the fascia conversation that only happens while the eaves are open.

The cheaper bid usually isn't cheaper, it's smaller. How I read scopes side by side with homeowners, the "Title 24 compliant" dodge, why designer shingles cost tile money, and the one line I'll trim when a budget is tight.

I put a temperature gun on an attic with zero roof vents: 157 degrees. What that heat does to your shingles and your AC bill, the 20-feet-of-ridge rule of thumb, and why bargain attic fans don't save roofs.

Shingles are the part you see. The deck, underlayment, and ventilation underneath are what protect your home, and where the real difference between bids lives. The felt "paper towel" problem, the 10% wood allowance, and the questions to ask every bidder.

Re-roof before solar, not after. The C39 license vs. B license problem. What happens when your solar company goes bankrupt. And why the underlayment under your panels matters more than you'd think.

Your tiles can last 75 years. The underlayment underneath them won't. What a tile lift & relay is, the three signs your roof is due for one, and why it beats a spot fix every time.

Southern California sun is relentless, and your roof takes the full hit every day. Heat damage, ventilation failures, Title 24 requirements, and how to pick the right materials for SoCal.

Most people call hoping for a repair. How I tell a repair roof from a replacement roof, what I look for up top, and why patching a roof that is done usually costs more than replacing it.

Not all contractor licenses are the same. Here's what a C39 actually means, why workers' comp matters more than most homeowners realize, and how to verify any contractor before you write a check.