The Session
This presentation explores condensation management and ventilation strategies for metal roofing and wall cladding systems, with a clear focus on NCC compliance and real-world constructability. It will unpack the NCC condensation provisions as they relate to metal envelopes and examine how different wall and roof build-ups perform in practice — from direct-fixed profiles to architectural panel systems installed over battens or plywood substrates. The session will compare insulation types, vapour control layers, and breathable membranes, and will place particular emphasis on correct detailing of ventilation paths, air inlets, and outlets to reduce condensation risk and improve long-term building performance.

No. 1 Roofing & Building Supplies
No.1 Roofing & Building Supplies is a premier supplier of high-quality roofing and building materials in Australia. As a proudly family-owned and operated business for over 21 years, we have built a strong reputation for reliability, expert guidance, and exceptional customer service.

We proudly support roofing contractors, builders, and homeowners across New South Wales, the Australian Capital Territory, Queensland and beyond. Established with a commitment to providing top-tier products, No.1 Roofing & Building Supplies offers an extensive range of roofing and façade materials, including metal roofing and walling, Architectural Panels cladding, insulation, rainwater systems, water proofing, and ventilation solutions.

We partner with trusted brands to ensure our customers receive durable and innovative products that meet Australian standards. Our branches are strategically located to provide fast and efficient service, with a team of knowledgeable professionals ready to assist with everything from product selection to technical advice. Whether it’s a small residential project or a large-scale commercial development, No.1 Roofing & Building Supplies is the trusted partner for roofing and building needs.

Marcio Da Silva
Marcio Da Silva is the General Manager of Architectural Specifications at No.1 Roofing & Building Supplies, where he supports architects, designers, and specifiers in selecting appropriate metals and architectural panels for their projects. He holds a degree in Architecture and Urban Planning from the Federal University of Paraná (UFPR) in Brazil and has nearly two decades of experience in the Australian construction industry. With formal architectural training and a specialised focus on metals and architectural cladding systems, Marcio brings deep technical expertise and a comprehensive understanding of both the creative and commercial aspects of building envelope solutions. His career spans roles in design, national sales leadership, and management of a specialised non-ferrous and architectural panels manufacturing facility.

This 1 hour session offers 1 formal CPD point, performance criteria addressed are 12, 39, 41 and 46 from the AACA National Standard of Competency for Architects 2021.

RAA members are eligible to utilise the discount code available in the member content area for free attendance of this session

Contact the host of RAA In Detail | Condensation by Design: Ventilation and Moisture Management in Metal Roofing and Cladding | No. 1 Roofing & Building Supplies

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