Waterproofing
Can You Waterproof on Top of Existing Tiles?
Yes, you can waterproof over existing tiles with the right preparation and materials. Learn about epoxy, polyurethane, and acrylic coating options.
Read the article → WaterproofingChoosing the Right Waterproofing Solution: Sheet vs. Liquid Waterproofing Membranes
Compare sheet and liquid waterproofing membranes. Pros, cons, and which solution is right for your construction project.
Read the article → Remedial EngineeringDo You Need to Replace the Entire Balcony? Repair vs Full Replacement
When can a balcony leak be fixed with a localised repair, and when does the whole deck need to come up? A risk-based framework for owners corporations, builders and strata managers facing a leaking balcony.
Read the article → WaterproofingEfflorescence in Waterproofing: What Causes It and How to Prevent It
Understand what causes efflorescence in waterproofed areas, how to minimise it through good design and construction practice, and how to treat it when it appears.
Read the article → WaterproofingHow to Choose a Waterproofing System for Your Project
A practical guide to selecting the right waterproofing system based on substrate, exposure, movement, access and budget. Includes product examples from Sika, Tremco, Ardex, Gripset and more.
Read the article → WaterproofingHow to Detail Around a Floor Waste: Why Most Leaks Start Here
Floor wastes are the single most common waterproofing failure point. Learn how to detail them properly: flange selection, set-down depths, membrane dressing, sealant choice, and the trap that catches most...
Read the article → WaterproofingHow to Detail a Waterstop at a Cavity Sliding Door
Cavity sliding doors are the hardest wet-area doorway to waterproof. Step-by-step waterstop angle detailing: equal angle flush with the floor finish, returns fixed to the jambs, membrane dressing, fillets and...
Read the article → WaterproofingNegative vs Positive Waterproofing: Pros, Cons and When to Use Each
Understand the differences between negative and positive side waterproofing, their pros and cons, and when each approach is appropriate for your building project.
Read the article → WaterproofingRe-Waterproofing a Balcony or Roof in an Apartment: A Guide to DBPA Legislation Requirements
A guide to DBPA legislation requirements for re-waterproofing balconies and roofs in NSW apartments. Steps from assessment to compliance documentation.
Read the article → WaterproofingSingle-Layer vs Dual-Layer Waterproofing Systems
When does a project need a dual-layer waterproofing system instead of a single layer? Risk-based selection per AS 4654.2 and BS 8102, where redundancy actually matters, and the cost trade-off.
Read the article → WaterproofingThe Process of Waterproofing a Class 2 Building
From schematic design to DBPA declaration: the seven stages of waterproofing a Class 2 apartment building correctly under the NSW Design and Building Practitioners Act.
Read the article → Remedial EngineeringThe Remedial Waterproofing Process: From Inspection to Completion
A step-by-step guide to the remedial waterproofing process — site inspection, engineering report, technical specification, tendering, contract management and the superintendent's role.
Read the article → WaterproofingVertical Termination Height Calculator (AS 4654.2)
Free calculator for AS 4654.2 Table A1 vertical termination heights. Enter an Australian site address and building height — get the ULS site wind speed and minimum external waterproofing upstand in millimetres.
Read the article → WaterproofingWaterproofing Component Compatibility Checker
Check waterproofing component compatibility instantly. Select two materials to see if they bond — covering bitumen, silicone, polyurethane, acrylic, PVC and polyester resin systems.
Read the article → WaterproofingWaterproofing Membrane Classes Explained: Rigid, Flexible and Elastomeric
A practical guide to waterproofing membrane classes under AS 3740 and AS 4858 — rigid, flexible and elastomeric systems, their pros and cons, and when to use each.
Read the article → WaterproofingWet vs Dry Basements: Understanding the Difference and Choosing the Right Approach
Learn the key differences between wet and dry basement construction in Australia, including waterproofing requirements, structural considerations, and how to choose the right approach for your project.
Read the article → WaterproofingWhat Is Involved in a Waterproofing Inspection?
What an independent engineering waterproofing inspection actually covers: stage holds, membrane thickness testing, junction detailing, fall checks, flood testing and what's documented in the report.
Read the article →Facades & Cladding
5 Design Moves That Lower Your F3V1a Risk Score and Save Money
Five practical design changes architects and developers can make to reduce NCC Table F3V1a weatherproofing risk scores, avoid costly cladding upgrades, and simplify compliance.
Read the article → FacadesDirect-Fix vs Drained Cavity: What Your F3V1a Risk Score Means for Cladding
Understand the difference between direct-fix and drained cavity cladding systems, and how your NCC F3V1a risk score determines which option your building requires.
Read the article → FacadesElevation vs Wall Face Approach: How to Assess Complex Buildings Under F3V1a
Technical guide comparing the elevation approach and wall face approach to NCC Table F3V1a weatherproofing risk assessment. Learn when each method is appropriate for facade engineering.
Read the article → FacadesExternal Wall System Finder
Set your fire (FRL), acoustic (Rw) and thermal (R-value) targets and instantly find the certified external wall systems that comply. Every result is grounded in the manufacturer design guide and links to the...
Read the article → FacadesNCC Table F3V1a Explained: How to Score Your Building's Weatherproofing Risk
Step-by-step guide to scoring your building's weatherproofing risk using NCC 2022 Table F3V1a. Learn the six risk factors, scoring bands, and what they mean for cladding selection.
Read the article → FacadesWall Sarking Installation: A Practical Guide to AS 4200.2
How to install wall sarking (building wrap) correctly to AS 4200.2 — membrane class selection, climate-zone vapour rules under the NCC, laps and fixing, openings, and the common installation defects to avoid....
Read the article → FacadesWall Type Schedule Builder
Build a project wall-type schedule fast: pick a cladding system by manufacturer, stack it into a scaled wall section and get the total wall thickness. Customise layers, save and export to PDF, CSV or a...
Read the article → FacadesWhen Your F3V1a Risk Score Exceeds 20: What ‘Specific Design’ Actually Means
What happens when a building scores over 20 on NCC Table F3V1a? Learn what specific design means in practice, what triggers high scores, and how facade engineers approach weatherproofing design for high-risk...
Read the article → FacadesWhy Parapets and Balconies Are the Biggest Weatherproofing Risk on Your Building
Parapets and enclosed balconies dominate NCC Table F3V1a weatherproofing risk scores. Learn why these features are high-risk, how they are scored, and what alternatives reduce exposure.
Read the article →NCC & DBPA Compliance
How We Use Self-Auditing to Stay Ahead of NSW Building Commission Compliance
Learn how Excelo Consulting Engineers uses an internal self-auditor tool to ensure every deliverable meets NSW Building Commission compliance and enforcement standards before it leaves our office.
Read the article → ComplianceWhen Is a Design Declaration Required Under the DBPA?
A practical guide to the NSW Design and Building Practitioners Act: which work triggers a registered design practitioner declaration, what counts as a building element, and how this affects waterproofing,...
Read the article →Structural
Need an engineer on a real project? Send us a brief — waterproofing, facade, structural and remedial engineering across NSW, VIC and QLD.