Permits and roofing rules in Tustin

The statewide layer

These are not specific to Tustin, but they apply to it, and several of them are widely got wrong — including by contractors quoting from habit rather than from the current code.

The right to cancel

A home improvement contract can normally be cancelled within three business days, and within five if the buyer is a senior citizen. Where the contract is to repair or restore residential damage from a disaster or a declared state of emergency, that window is seven business days.

That longer window exists because of what happens on a street after a storm. Nothing has to be signed at the door — and if something was, the clock above is why it is worth re-reading tonight rather than tomorrow.

Tear-off waste and where it goes

CALGreen’s 65 per cent diversion requirement for construction and demolition waste attaches to additions and alterations that increase a building’s conditioned area, volume or size. A straight re-roof does none of those, so the state mandate generally does not reach it.

Local ordinances frequently do, and the state code expressly lets a city be stricter. Plenty of cities capture roofing through their own construction and demolition rules by permit valuation, which can mean a deposit and a diversion report on an ordinary house. Ask the city before the skip is ordered rather than after.

Licensing, deposits and what has to be on the paperwork

Roofing is the C-39 classification with the Contractors State License Board. The minor-work exemption that lets very small jobs be done unlicensed rose to $1,000 at the start of 2025, but it does not apply to work that requires a permit — and a re-roof requires a permit. The practical rule is therefore simpler than the statute: a re-roof needs a licensed contractor, whatever it costs.

The deposit is capped by statute. A home improvement contractor may not take a down payment of more than $1,000 or ten per cent of the contract, whichever is less, unless they have a blanket performance and payment bond on file with the board. Exceeding it is a misdemeanour, and in a declared disaster area the court is required to impose the maximum fine — which tells you how commonly it is attempted after a storm.

Licence numbers are required in all advertising and on contracts, subcontracts and bids. An advert without one is itself information. The board’s register settles it in under a minute and the minute is worth spending.

How many layers can stay on

A new covering may not be laid over the old one where there are already two applications of any type on the roof, where the existing roof or covering is water-soaked or has deteriorated enough that it is no longer a sound base, or where the existing covering is slate, clay, cement or asbestos-cement tile. In those cases the roof comes off to the deck.

Two layers is therefore the practical ceiling, and on an older house nobody knows how many are up there until somebody looks. That is the single most common reason a re-roof price changes after the work starts, and it is a fair reason to ask for the quote to state what happens if a third layer appears.

Fire classification: what is actually required, and where

Every ordinary re-roof has to meet at least a Class C fire-retardant covering. That floor applies to new roofs, to repairs and replacements, and to any existing building where over half the roof area is replaced inside a year.

Class A, the highest classification, is required where the property sits inside a fire hazard severity zone or a wildland-urban interface area, and many cities require it more widely by local ordinance. In practice, across most of south Orange County, Class A is the answer — but it comes from the fire zoning and the local ordinance rather than from a blanket statewide rule, so it is worth confirming for your address rather than assuming either way.

As of 1 January 2026 the wildfire rules live in their own book: the California Wildland-Urban Interface Code, Title 24 Part 7, which consolidated what used to be Chapter 7A of the building code and section R337 of the residential code. A contractor still citing Chapter 7A is citing something that has been superseded.