Risk Management Indoor Air Quality (IAQ) Tailoring Lease Specifications www.saif.com
database on building material emission rates. In the absence of specific standards in this area, no lease clauses can be defined at this time. It appears that the most efficient way to obtain “clean” products is to place as much responsibility as possible on the product manufacturer to control emissions and to provide data.
In the interim, specifications can be suggested that can be used to direct potential vendors to provide appropriate products. Certain materials are more important sources of VOCs than others. These materials include carpets, adhesives, caulks, sealants, paints, insulations and office work station furnishings. Since the selection of interior furnishings is typically not within the scope of leases, readers are directed to a chapter by Hal Levin2 for a more detailed discussion of this issue.
Responsibility for the selection of materials often rests with both the tenant and the building owner.
What is in the domain of both construction activities and lease specifications are requirements to maintain maximum ventilation. Therefore, the following requirements may be considered:
During the installation of materials (in either the tenant’s space or areas served by the tenant’s HVAC system) with the potential to emit VOCs (including carpets, adhesives, caulks, sealants, paints, insulations and office work station partitions), the HVAC system shall be operated with no recirculation or air (weather permitting). This can be achieved either with 100 percent outside air or by using only the supply air fans and ducts; exhaust is to be provided through windows (if operable). This reduces contamination of return air ducts, plenums, and insulation materials. If operable windows are not present, temporary openings shall be provided by the removal of window glass. Consideration shall be given to the use of exhaust fans to pull exhaust air from deep interior locations. Stair towers and other paths to the exterior are useful for exhausting air from the building during temporary ventilation. Any temporary systems must comply with applicable life and safety codes. This construction related ventilation shall be operated for 24 hours a day and shall persist for one week after the installation of the carpets or other remodeling activity.
For addressing issues pertaining to cigarette smoke:
Air exhausted from areas designated to permit smoking discharged directly to the outdoors via a separate system at a minimum rate of 50 cfm/smoker.
shall be exhaust
© SAIF Corporation
Page 6 of 9