• Project Type: Evaluation, Design, Construction Administration

 The Vital Structure: 

Wood-Framed Envelope Failure

Issue

Several wood-framed 2-3 story buildings built between 2009-2014, using vinyl siding and accent-areas of thin-brick veneer were exposed to the severe environment of the New England coastline. The Owners reported evidence of water, snow and wind infiltration through roof eaves, soffits, walls, fenestrations, and chimney transitional areas.  Interior finishes at spot locations were becoming stained, with leaks reported in some locations since original construction.  Although moisture issues were reported at select buildings and concentrated building transitional areas, Vital Structures engineers used exploratory destructive testing to expose extensive and global deterioration-extending to structural components.

Diagnosis

Performed building envelope evaluation with targeted/representative exploratory test cuts, which revealed:

  • Thin brick veneer wall assemblies were not a ventilated drainable wall cladding, but rather a thin-set mortar application over the OSB sheathing with integral weather-resistive barrier. Limited areas were found to have substantial moisture infiltration, rotted structural framing and insect infestation.
  • A poorly sealed wall penetration was found to have led to substantial moisture infiltration, saturated insulation, rotted sheathing and rotted structural framing
  • Chimney framing could be easily moved by hand, with inconsistent anchorage and substandard structural connection.
  • Wood framed exterior decks were neither connected nor flashed properly to the building which caused extensive rot in wood framing/sheathing and corrosion of structural connections.
  • The deck outer and perimeter support beams and posts were not consistently pressure-treated, and constructed incorrectly with inadequate metal connectors, missing fasteners, suffered from inappropriate load-path resolve, and experienced damaged support post conditions from rodent mastication and water infiltration.

 

Solution

Prepared a building envelope evaluation report and complete design documents, including structural framing and building envelope repairs. The design for the thin-brick veneer replacement areas utilized a back-vented thin-brick, veneer-weeped panel system.

    The Client’s Result

     To solve the issue, we: 

    • Removed exterior wood-framed decks and slider doors to address envelope flashing/weatherproofing deficiencies.
    • Removed building exterior sheathing to replace deteriorated structural wall framing, corroded connections, and to install solid wood blocking between framing members to receive new deck ledger connectors.
    • Removed exterior brick veneer from wall sections and chimneys, and replaced with a drained brick veneer panelized system.
    • Added transitional flashings, improved self-adhered water resistive barriers, door sill pans, and window flashing improvements.
    • Replaced or reframed exterior deck support beams and columns, connectors, and re-established proper load path.
    • Reframed and improved chimney anchorage and framing systems.
    • Replaced exterior siding, trim, roofing systems, and low-slope roofing under exterior decks.
    • Improved roof and wall ventilation systems to help resist wind-driven rain infiltration.

    Contact us to get a free quote for your vital structure.

     

    Evaluate. Guide. Revitalize.

    Let's Do Something Vital Together!

    “An Objective Expert We Could Trust”

    We retained Vital Structures after finding our builder unwilling to help identify and rectify obvious bowing and waving to our accessory building.  The information provided by Vital was impressive as it was detailed and specific calling out nonconformance to building codes, industry standard construction practices and manufacturer specifications.  The reports were written in a way that was observational, with pictures and evidence.  Had we not hired an objective expert we would have been faced with serious structural problems unknown to layman.  The professionalism, expectation setting and follow-through on Vital Structures part was the due diligence we needed to protect ourselves in this endeavor.  It is well worth the time and expense to correct the issues in advance of accepting subpar construction.

    Jeanne Pagani

    Homeowner

    “Vital Structures Has My Highest Recommendation.”

    As the trustee for the Lois J. Lewis Trust, I contracted Vital Structures to oversee a project to evaluate and repair the foundation pilings of an 1880s lakefront cabin on Spofford Lake. The cabin’s piling foundations had deteriorated due to hillside erosion, age, and lack of maintenance. By the time Vital Structures took on our project, the foundation was close to failure.

    David Morand, who oversaw the project, was professional, meticulous, and flexible,- offering several well-considered solutions to our problem. He and his team were involved from start to finish, readily available for updates, and on site to address any issues that arose. David was also instrumental in connecting us with a contractor who could meet our unique needs, given the limited access and difficult site conditions.

    I can’t say enough good things about the way Vital Structures conducted the project and their professionalism throughout the process. They were a pleasure to work with.

    Kenneth Betts

    Trustee, The Lois J. Lewis Trust

    “Vital provided invaluable assistance and made our buildings healthy again!”

    Our Association hired Vital Structures to inspect our decks. David, Richard, and the rest of their team are very professional, knowledgeable, and easy to work with. As our relationship formed, Vital Structures became our Engineers of choice to develop a new design to replace all the decks in the Association.  Vital provided us with invaluable assistance in obtaining Contracting Bids, so we had verifiable Construction Company choices.  Once renovation began, Vital oversaw the project, holding Contractors accountable, ensuring construction was completed to our new design specifications and that the job was done correctly.  Everyone loves the new look and our buildings are becoming healthy again!

    Mike Labrecque

    Trustee, The Colonial Village

    “A huge value to our business!”

    We are a waterfront business operating in Provincetown for over fifty years. Vital Structures has been our valued “go-to” partner whenever we address issues relative to our building or property. Their comprehensive knowledge and ability to assess issues and provide solutions across the board is truly a unique expertise and of huge value to businesses like ours. They are service-oriented, extremely responsive, and know their business – and ours. Five-star excellence in all regards!

     

    Jill Botway

    Managing Director, The Boat Slip LLC

    “Highly Recommended! “

    Vital Structures llc has proven to be a top notch engineering firm. Beginning with a comprehensive and thorough review of the job scope, to the completion of a project with no details missed. All personnel involved with each project we have found to be excellent to work with and yet never willing to compromise details that would have any adverse effect on the project. Whenever unforeseen conditions arise, they are immediately back to the drawing board without any hesitation in order to keep the project moving. I would highly recommend Vital Structures llc for any structural or building envelope projects.

    Brett Emery

    Emery Construction LLC

    “An Eye for Detail”

    We have been working with David Morand of Vital Structures on a few different projects over the years.  We are completely impressed as he is professional, has an eye for detail, is very thorough, and always answers all our questions.  David & the Vital Structure’s team are very knowledgeable about the industry, very proactive with their approach, and always do a great job.  I would not hesitate to use David and his team on the future projects.

    Laurie Ferrari

    CEO, Peters Property Management
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