Envelope commissioning applies to the air, thermal, and vapor barriers, and the water management systems, of the exterior shell. Similar to HVAC commissioning, envelope performance goals are set and the envelope is designed, implemented, and tested to insure the goals have been met. Don't forget, envelope commissioning is eligible for an Innovation in Design Credit in the current LEED rating system.
Large Building Blower Door Testing
Blower door testing to confirm compliance to an air tightness standard or to quantify air leakage for existing large buildings. Past tests include buildings between 100,000 and 200,000 s.f. of floor area. Air tightness test results are compared with other buildings of similar type to assess the potential for improvement.
Quality Assurance Testing With Fog or Infrared
On site testing of zones, rooms, or specific details while construction is ongoing to insure that the design intent is being met in the actual construction. This testing has minimal impact on construction sequencing and schedule. On-site training for subcontractors is included.
Special Environment Air Tightness Testing
Qualitative and quantitative testing of unique spaces within a building that may require custom testing solutions where a typical blower door may not be applicable, verification of ultra-low air leakage rates, and/or investigation of specific air leaks both large and small with the use of pressurized fog or a smoke pencil. Lab rooms or “clean” rooms are one such example.
Window & Air Tightness Testing
ASTM E783 is used to quantify the air leakage rate of an installed window, storefront, or door in new construction and helps determine the potential benefit of replacement windows in existing buildings.
Water Infiltration Testing
Testing windows, doors, storefronts, curtain wall assemblies and flashings for water penetration under simulated wind conditions per ASTM E1105, AAMA 502, and AAMA 503. AAMA 501.2 is also used to test water infiltration but without simulated wind conditions.
Testing membranes, spray foam, and fasteners for proper bonding strength on all types of substrates.
Testing on-structure and off-structure mock ups for air tightness (ASTM E783, E1186) or water penetration (ASTM E1105, AAMA 501.2, 502, 503) is a great way to verify the design and workmanship before construction begins.
Review and testing of all building systems including lighting, electrical loads, HVAC, hot water, and the building envelope. This information is integrated with the maintenance schedule and future plans for the building to create an energy plan for the building. With the plan, energy improvements can be implemented when they will have the fastest return on investment.
Infrared imaging, pressurized fog, and blower door testing used as needed to determine the root causes of excessive energy costs, comfort issues, water damage, ice dams, mold, or pipe freeze-ups.
Technical Consulting for the Building Envelope
There is science and math behind every window, door, and cladding system out there. With our background in physics and construction we can aid in reviewing specifications or submittals, dew point calculations, energy savings calculations, and in setting project goals.
Pressure Balanced Blower Door Testing For Additions and Zones
Sometimes called guarded blower door testing, pressure balanced testing is for accurately testing a single zone or addition as if it were a stand-alone building. This procedure eliminates the error associated with air leakage in the connecting structure(s).
Guided Volunteer Audits
We conduct energy audits at a reduced rate with a core of volunteers that are local to the building. Training for the volunteers is included. Side benefits of this type of audit have been increased awareness of how to save energy and local advocates that can push for implementation long after the auditor has moved on.
Year-round, non-invasive approach to identify air leakage sites and diagnose complex air leakage pathways.
Infrared surveys under normal and induced building pressures to identify locations of insufficient R-value and locations of air infiltration.
Baseline Pressure Analysis
Determines the normal operating pressures for zones of the building due to stack, wind, and HVAC systems. Identifies the zones that are most subject to heat loss by air movement.