AS3660 Termite Protection Standards: What Every Homeowner Must Know

AS3660: Your Shield Against Termite Damage

As a licensed pest control professional protecting Sunshine Coast homes for over 10 years, I need to explain why Australian Standard AS3660 isn't just technical jargon, it's your financial protection. Termite protection that doesn't meet AS3660 is more likely to fail early, and it can leave you with a warranty that doesn't hold up when you need it.

Understanding AS3660 could save you tens of thousands of dollars and ensure your termite protection actually works when you need it most. Here's everything you need to know about the standard that protects Australian homes.

What Exactly Is AS3660?

Australian Standard AS3660 is the comprehensive technical standard governing termite management in and around buildings. Developed by Standards Australia with input from termite experts and building professionals, it ensures termite protection meets proven effectiveness benchmarks.

AS3660 covers three critical areas:

• AS3660.1: New building work (design and construction of termite management systems)
• AS3660.2: In and around existing buildings and structures (guidelines for inspection, detection and treatment)
• AS3660.3: Assessment criteria for termite management systems (used by manufacturers and assessors)

Think of AS3660 as the rulebook for termite protection: AS3660.1 is called up by the National Construction Code for new buildings, and AS3660.2 is the benchmark for inspecting and treating existing ones. Just as electrical work must meet safety standards, professional termite protection is expected to meet AS3660.

Why AS3660 Compliance Matters for Your Home

Most home insurance policies exclude termite damage entirely, so the protection itself is what protects you. AS3660 sets out what that protection should look like:

What AS3660 Expects:

• Annual professional inspections by licensed technicians
• Proper documentation of all treatments and inspections
• Use of approved chemicals and application methods
• Correction of conditions conducive to termite attack
• Maintenance of protection systems as per manufacturer specifications

If termites do get in, there's usually no insurance safety net. That's why the inspection and maintenance side of AS3660 matters as much as the installation.

The Technical Standards That Matter

AS3660 isn't arbitrary: every requirement is based on termite behavior research and real-world effectiveness data. Here are the critical technical aspects:

Chemical Barrier Requirements (AS3660.1 for new builds, AS3660.2 for existing homes)

Chemical Concentrations:

• Mixed at the rate on the product label (for example, the Termidor label rate is 600 mL in 100 L of water, a 0.06% mix)
• Uniform distribution throughout treatment zone
• No gaps or weak points in chemical barrier
• Proper mixing and dilution rates documented

Application Depths and Zones:

• Horizontal treated zone at least 80 to 100 mm thick, depending on the product label
• Vertical treated zone at least 150 mm wide and down to at least 50 mm below the top of the footing
• Where the label calls for rodding, holes are spaced closer in heavy clay (about 150 mm) than in other soils (about 200 mm)
• A continuous treated zone under slabs where it can be achieved. On existing homes that means drilling and injecting, and where it cannot be made continuous the gap is recorded and more frequent inspections are recommended
• Vertical treatment zones around penetrations

Coverage Requirements:

• Continuous barrier around entire building perimeter
• Treatment of all service penetrations
• Special attention to stairs, patios, and attached structures
• Documentation of treatment rates and coverage areas

Inspection Standards (AS3660.2)

Annual Inspection Requirements:

• Visual inspection of all accessible areas
• Moisture detection and assessment
• Documentation of conditions conducive to termite attack
• Assessment of existing protection systems
• Written report with photographs and recommendations

That list is a good benchmark for an annual termite inspection. AS3660.2 recommends a regular inspection at intervals of no more than 12 months, and if your last report is missing most of this list, ask why.

Higher-Risk Properties:

• Shorter inspection intervals where there has been previous termite activity (AS3660.2 suggests special inspections during termite control work be no more than six months apart)
• Monitoring stations, where installed, checked at least every three months
• A fresh inspection after structural changes or additions

Where activity has been found before, ongoing termite monitoring and baiting is usually the practical way to meet those shorter intervals.

AS3660 vs. Non-Compliant Protection: The Real Differences

Here's what separates professional AS3660 work from substandard protection:

Chemical Quality and Application

AS3660 Compliant:

• Uses only APVMA-approved termiticides
• Proper chemical mixing with calibrated equipment
• Documented application rates and coverage
• Documented product, mix rate and volumes applied

Non-Compliant Work:

• May use diluted or inappropriate chemicals
• Inconsistent application rates
• Gaps in coverage around difficult areas
• No quality control or documentation

Documentation and Records

AS3660 Compliant:

• Detailed treatment diagrams and specifications
• Chemical usage records and batch numbers
• Photographic evidence of treatment areas
• Warranty certificates with clear terms
• Maintenance schedules and inspection records

Non-Compliant Work:

• Minimal or no documentation
• Vague warranties without specific terms
• No maintenance requirements specified
• Limited evidence of actual work performed

The Cost of Non-Compliance

Non-compliant termite protection doesn't just risk termite damage, it creates financial problems:

1. Damage you pay for yourself

Most home insurance policies exclude termite damage, so if a non-compliant barrier fails, the repair bill is usually yours.

2. A warranty that doesn't hold up

A barrier warranty generally depends on the work being installed to AS3660 and kept up with annual inspections. If the contractor can't show that, the warranty may be worth little when termites appear.

3. Property sale issues

A pre-purchase inspection can turn up non-compliant protection, which can hold up a sale or mean paying for a new barrier before settlement.

How to Verify AS3660 Compliance

Protecting yourself requires asking the right questions and demanding proper documentation:

Before Hiring a Contractor

Essential Questions to Ask:

• "Are you licensed for termite work in Queensland?"
• "Will your work comply with AS3660 standards?"
• "What documentation will you provide?"
• "What chemicals will you use and at what concentrations?"
• "How will you ensure complete coverage?"
• "What warranty do you provide and what are the terms?"

Red Flags to Avoid:

• Quotes significantly below market rates
• Vague or limited warranty terms
• Reluctance to provide chemical specifications
• No mention of AS3660 compliance
• Unlicensed or interstate contractors

During the Work

What You Should See:

• Calibrated mixing equipment for chemicals
• Measuring devices for application rates
• Photography of treatment areas
• Systematic coverage of all required zones
• Professional documentation of work progress

Upon Completion

Required Documentation:

• Termite management system certificate of installation and durable notice
• Detailed treatment diagram
• Chemical usage records
• Warranty certificate with specific terms
• Maintenance and inspection schedule
• Contact information for ongoing service

Maintaining AS3660 Compliance Long-Term

AS3660 compliance isn't just about installation, it requires ongoing maintenance and documentation:

Annual Inspection Requirements

Licensed Professional Must Assess:

• Structural modifications that may affect barriers
• Moisture issues and drainage problems
• Vegetation growth affecting access and treatment zones
• Signs of termite activity or damage
• Condition of existing protection systems

Property Owner Responsibilities

Between Professional Inspections:

• Maintain clear access to inspection areas
• Address moisture problems promptly
• Avoid disturbing treated soil zones
• Report any termite signs immediately
• Keep all documentation safe and accessible

The Radar Pest Control AS3660 Guarantee

As a fully licensed Queensland pest controller (PMT5005626616), every termite protection service I provide meets or exceeds AS3660 standards:

This is the standard I apply on every termite control on the Sunshine Coast job, whether it's a brand-new barrier install or an annual compliance inspection.

If you want the annual inspection and your general pest treatment done together, the pest control and termite inspection package covers both in one visit for $480.

Our AS3660 Compliance Includes:

• Premium APVMA-approved chemicals at correct concentrations
• Calibrated equipment ensuring accurate application rates
• Complete documentation package with photographs
• 8-year warranty backed by AS3660 compliance
• Annual inspection service maintaining compliance

Advanced Technology Advantage:

Our Termatrac T3i radar is one of the non-destructive tools AS3660.2 recommends where termite activity or unexplained moisture is suspected, and it can pick up activity behind linings without drilling.

Frequently Asked Questions About AS3660