DBPA

Navigating DBPA: Waterproofing Balconies

Understanding the Design and Building Practitioners Act requirements for balcony waterproofing — what's required and when.

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Remedial

Do You Need to Replace Your Entire Balcony?

Patch jobs vs full replacement. When you can repair, when you can't, and the warranty implications of each approach.

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DBPA

When Is a Design Declaration Required?

The threshold: over one bathroom, you need a DBPA design declaration. What triggers it and who is responsible.

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Inspection

What Is Involved in a Waterproofing Inspection?

Thickness testing against specs, transition detailing at junctions, and why junctions are the most likely failure points.

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Materials

Pros and Cons: Sheet vs Liquid Membrane

A practical comparison of sheet and liquid membrane systems — performance, application, cost, and when to use each.

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Materials

Are All Membranes Compatible With Each Other?

Not all membranes play well together. Compatibility considerations when layering or patching different membrane systems.

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Detailing

How Should You Detail Around a Floor Waste?

Correct detailing methodology around floor wastes — one of the most common failure points in wet area waterproofing.

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Design

Single Layer vs Dual Layer Membrane Systems

The benefits of single and dual layer systems, when each is appropriate, and what the standards say.

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Case Study

How We Saved This Client Money

A real project where the right inspection and documentation approach saved significant cost. Coming soon.

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Process

The Process of Waterproofing a Class 2 Building

End-to-end walkthrough of waterproofing a Class 2 residential building — from design to sign-off.

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Deliverables

What You Get From an Inspection

Sample output — what an inspection report looks like, what it covers, and how it fits into your engineering documentation.

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