Goodvin Designs
Engineered Resilience

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Goodvin Designs
Engineered Resilience

Goodvin Designs Engineered Resilience Goodvin Designs Engineered Resilience Goodvin Designs Engineered Resilience
  • Home
  • Projects
  • services
  • Articles
  • Contact/Bio
  • Workshops

Advisory Engineering for Alternative materials

Hempcrete mini-home demonstration.

Expert support for hempcrete and vapor‑open assemblies — from design through code‑compliant build

With over 15 years of hands‑on building and building‑science expertise alongside my Professional Engineering certification in alternative materials, I help individuals, builders, and project teams confidently plan, design, and build with natural and alternative materials. As a licensed P.Eng., I offer the engineering authority and practical know-how to ensure assemblies meet real‑world, code‑compliant standards — backed by real performance outcomes.

How I Can Help

Engineering Sign‑Off & Code Compliance

  • Provide stamped engineering for assemblies using hempcrete or vapor‑open materials and products.
  • Navigate design, energy, envelope requirements — including performance‑based solutions and alternative pathways
  • Collaborate with your structural engineering team


Design Concept & Detailing

  • Create robust wall, roof, and enclosure concepts tailored to climate, site, and material
  • Detail vapor-open and passive-solar-oriented systems


Material & Application Support

  • Advise on binder formulations, mix ratios, casting methods, and installation techniques
  • Guide panel/block system integration, including training and QA support


Performance Optimization & Monitoring

  • Guide testing and performance data
  • Help set up simple to advanced monitoring programs (moisture, temperature, air tightness)
  • Analyze performance data to refine designs and validate feasibility


Pilot Product/R&D Support

  • Advise on prototyping and test planning to capture actual performance 
  • Support materials testing, comparative analysis, and documentation-ready reporting


Flexible Advisory Engagement

  • Consulting packages and support
  • Email, calls, and onsite guidance available via retainers
  • Training

Why Work With Me?

  • Specialized P.Eng.: My stamp enables (beyond) code‑aligned implementation
  • Hands‑On Perspective: I've built and tested hempcrete domes, tiny homes, greenhouses, and a sauna and I know how these systems perform in real conditions
  • Broad Scope: Expertise spans hempcrete, vapor‑open walls, passive solar, and alternative compliance methodology
  • Product Design: save years of effort by starting with an engineer that understand the needs and application of alternative products in Canada.
  • Cost & Risk Savvy: I help you avoid over‑build and under‑performance — saving time and budget

Ready to Get Started?

Contact us to discuss our consulting services.

Keep an eye on our workshop page for hands-on learning opportunities!

Expert consulting in vapor open materials - not just hempcre

Beyond Hempcrete: Expertise in Regionally Appropriate Materials

While hempcrete is a key focus, I also assist with other alternative materials suited to specific climates and project needs. From autoclaved aerated concrete (AAC) to natural fiber insulation and earth-based construction, I help clients integrate materials that optimize performance, sustainability, and cost-effectiveness. If you're exploring a unique material for your build, I can provide guidance on application, compliance, and best practices.


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