Recent Projects

In this Mold Remediation and Building Envelope Upgrade projet, we performed a forensic investigation into the causes of water intrusion at the school. We thoroughly analyzed the building envelope and air quality issues, as well.

The Middle School of the Kennebunks suffered from long-term moisture intrusion and water leakage problems due to issues with the roof, windows, and walls, as well as HVAC piping leaks and freezing. Through in-house water testing and field work, we were able to execute a fix without incurring major renovation costs to the school district.

We completed a series of building evaluations to uncover causes of moisture that was promoting mold growth. We used an alternative method of wall repair on the brick facade, and replaced the existing insulation, which provided more efficient air and vapor barriers. A new drainage mat was also installed to maintain proper conditions behind the brick facade.

We conducted pressure diagnostics over an exted period of time to understand how building operations affected pressures near the floor slab of this historic mill building, which dates to the 1800s. We provided short- and long-term solutions for building pressurization and slab suction to address the underground problem.

We performed building science evaluations to determine the cause of moisture intrusion on this New England-based office building. Our knowledge of the behavior of the building envelope systems enabled us to determine the proper retrofit system. Specially-designed valleyes, ridges, expansion joints, and a vapor barrier were all incorporated in the final design.

We provided an initial evaluation of deconstructed walls to determine sources of moisture that promoted mold growth. We found the existing walls had very little drying potential, and that the windows were not installed with pan flashing at the sills. Our recommendations empowered the preschool move forward without further issues caused by moisture and mold.

When schools discover health concerns in the classroom such as mold growth, we are able to formulate plans to remediate mold issues and faulty envelope construction through scientific, thermal, and destructive testing. Often this occurs in two phases, beginning with containment, removal, and upgrades, then focusing on energy saving and aesthetic upgrades that improve performance and reduce operating costs.

In this project, impact from a previous dry-cleaning occupant eleveted the levels of soil gases in the basements of several homes. We worked to design mitigation systems for each building, including conceptual renderings, and gained approval to fit each house with a sub-slab suction system to remove the dangerous soil gases.

We evaluated the air quality at this school, including airborne and surface sampling for microbes, but quickly turned to the building envelope because observations indicated that the walls may be damp or wet. Our report compiled recommendations for repairs to the wall, site modifications, and proper drainage to keep surface water away from the building.

We provided enhanced commissioning services for a class 10,000 cleanroom facility expansion, renovation, and LEED certification. We ensured that the buildings energy-related and comfort systems were designed, installed, calibrated, and performing in accordance with the Owner's Project Requirements, Basis of Design (BOD), and construction documents.

For this commissioning project at the Berlin, NH campus, we reviewed the lighting, HVAC systems, controls, mechanical and building envelope to find savings and projects through energy conservation. The analysis was based on an ASHRAE Level II audit and involved ARRA funding requirements.

We were the Commissioning Agent for the roof, walls, and ground contact floor of a residence hall erected at Stonehill College in Easton, MA. We provided design drawing review and field testing services during construction to ensure sufficient and clear details were provided in the drawings, and that the builders were providing the necessary attention to detail to provide an enclosure that would not exceed an air leakage rate of 0.25 CFM/SQFT surface area at a 50 Pa pressure difference.

We recommended an alternative approach to the failed mechanical refigeration air handler which used a non-refrigerated, passive heat pipe, heat exchanger ventilation-only unit, which significantly reduced operating costs. We also acted as commissioning agent for the new mechanical systems.

The new Maine DOT building design incorporated upgrades to the window-wall and HVAC systems, bringing the complex up to current code requirements and renovating all interior finishes. The new space plan fosters teaming between departments and provides for more efficient flow of personnel. We also acted as commissioning agent for this project.

Following the collapse of part of the roof under the weight of snow, we were contracted to perform a complete investigation of both the building shell and the mechanical systems for this elementary school. Building shell commissioning services provided included dew point/vapor pressure review, exterior drainage plane/wind barrier review, interior air barrier/vapor barrier review, and numerous other analyses throughout the building.

We have provided BAE Systems with a wide variety of mechanical systems since 2006. Our professional design services have included the replacement of an absorption chiller with a new centrifugal chiller, the replacement of an NHQ cooling tower, and a dust collector replacement. We have also assisted BAE Systems with Benchmark Verification for Energy Star Certification.

We've worked on various F.W. Webb Company facilities throughout New England since 2006. Projects have included HVAC and fire protection for new and existing buildings, thermal solar panels, and an open loop well design with local geotechnical considerations.

We provided energy auditing services on two buildings, including the review of lighting, HVAC systems, mechanical systems, and the building envelope, and identified savings and energy conservation opportunities. The study and analysis were based on an ASHRAE Level II audit and involved ARRA funding requirements.

We performed HVAC renovations and upgrades toe the Fairgrounds, Ledge Street, and Charlotte Avenue Elementary Schools in Nashua, NH. The scope involved replacing existing boilers and pneutmatic control compnents with new, gas-fired, cast iron sectional hot water boilers and DDC components. Combusion air systems were also installed, as well as kitchen upgrades.

We conducted an energy savings analysis for seven municipal buildings in Rockport, ME. Work included the review of lighting, HVAC systems, mechanical and the building envelope to find savings opportunities. We delivered a report that indicated payback information as well as energy savings., and recommended alternative energy methods that could be employed.

Rundlett Middle School was relying on its original heating and piping systems, which were more than 50 years old at the time we were brought in to design new systems for the facility. We began by studying alternatives to supply the building with heating, then analyzing heating needs. We prepared initial costs, operating costs, and life cycle analysis of the options and assisted the School District with decision making moving forward.