S.I.M.M.

Holzraum System creates a Single Integrated Manufacturing Model combining structural, building fabric, energy performance, manufacturing and mechanical systems perspectives and aligns them with the project stakeholders' goals.

 

Holzraum System  works with architects, engineers, builders and developers and connects them with our manufacturing processes and efficiencies in order to provide building envelope analysis and consulting as needed, resulting in a complete integration of project design intent, passive house principals and cost-effective offsite manufacturing.  Holzraum System keeps the envelope design and planning process connected - always maintaining alignment between client, engineering and manufacturing perspectives. As we create a precise and comprehensive single 3D model of your structure, we apply our building science training and Wufi static and dynamic software tools. This eliminates thermal bridging, achieves superb air-tightness, and delivers highly vapor-open moisture profiles in our exterior wall and roof assemblies: eliminating risks of mold conditions and assembly decay and assuring the safest, healthiest indoor air quality possible.

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When the S.I.M.M. is complete, a detailed set of geometry drawings is prepared and reviewed by the project's structural engineer, architect and builder to ensure the whole team agrees with design intent and fabrication strategies.  Once the drawings have been approved for fabrication, Holzraum System creates machine files and factory instructions from the S.I.M.M. to ensure that every aligned perspective is manifest in the delivered panels and loose parts.

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Holzraum System® marries high-performance wooden building envelope design and translation for off-site manufacturing with interpretation and advocacy for designers, developers, owners, and manufacturers.

Carbon Smart By Design

TM

Holzraum in 60 seconds...
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  • SERVICES

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    Digital Modelling for Prefab
    David Hessler
    • Jun 2

    Digital Modelling for Prefab

    Holzraum System was recently featured in Offsite Builder Magazine's June 2022 issue with a really nice article discussing how our...
    The Passive Rowhouse Manual
    David Hessler
    • Jun 17, 2021

    The Passive Rowhouse Manual

    We want to congratulate Green Building United on their outstanding work developing this amazing guidance for improving the quality and...
    Please join us at NESEA BuildingEnergy Boston on May 7, 2021
    David Hessler
    • Apr 17, 2021

    Please join us at NESEA BuildingEnergy Boston on May 7, 2021

    Ilka Cassidy, Steve Hessler, Chris Hearl, Kyle Macht and Shannon Pendleton will present "The Glue That Binds PrePHab: How Designers &...
    Building Science Friday discusses our Silvergreen Passive House project with Ilka and Steve
    David Hessler
    • Apr 16, 2021

    Building Science Friday discusses our Silvergreen Passive House project with Ilka and Steve

    Holzraum's own Ilka Cassidy and Steve Hessler, along with Shannon Pendleton and Angela Iraldi discuss the Silvergreen project in depth...
    Silvergreen: a Prefab Passive House presentation
    David Hessler
    • Apr 6, 2021

    Silvergreen: a Prefab Passive House presentation

    Do you like our modeling video? Want to learn how that model was used? Holzraum's own Ilka Cassidy was joined by Shannon Pendleton and...
    SHE WHO CONSTRUCTS, A PASSIVE HOUSE ACCELERATOR SUMMIT
    David Hessler
    • Feb 25, 2021

    SHE WHO CONSTRUCTS, A PASSIVE HOUSE ACCELERATOR SUMMIT

    Please join Holzraum's own Ilka Cassidy for a special Passive House Accelerator Summit celebrating International Women's Day 2021 at 7pm...
    Passive Goes Prefab - Passive House Accelerator spotlights a Holzraum System Project
    David Hessler
    • Feb 21, 2021

    Passive Goes Prefab - Passive House Accelerator spotlights a Holzraum System Project

    Holzraum System is very proud to be featured in Passive House Accelerator magazine's latest issue: "Passive Goes Prefab". Take a look at...
    Safety First: Or Else.
    David Hessler
    • Sep 22, 2020

    Safety First: Or Else.

    I have recently had a lot of free time to contemplate the nature of the universe and my place in it, due to my spectacularly bad...
    What’s in a SIMM?
    David Hessler
    • Aug 4, 2020

    What’s in a SIMM?

    If you work in the construction industry, you have probably heard the aphorism: “construction is messy”. If you have engaged a developer,...
    HolzChat #2: Future Wooden Building Systems
    David Hessler
    • Jun 3, 2020

    HolzChat #2: Future Wooden Building Systems

    Our second HolzChat webcast was recorded on June 4, 2020 at 12pm Eastern USA, and you can get the replay link by registering here. We...
    Who cares about high fidelity building models?
    David Hessler
    • May 14, 2020

    Who cares about high fidelity building models?

    The answer to this question is actually really easy: everybody who will pay for mistakes should care about having the right design before...
    Our First HolzChat!
    David Hessler
    • May 7, 2020

    Our First HolzChat!

    Please join us on May 14, 2020 at noon Eastern time for our first ever HolzChat webcast. Our first topic is "Demystifying Sustainable...

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