LEED 2009 for adhesives and sealants - EQ credit 4.1
There are VOC requirements for adhesives and sealants in the LEED 2009 specifications.
These go for VOC content determination, where all volatiles are determined by weight loss after drying at 110°C during 1h. Besides VOC, also water evaporates then. Therefore a water determination is added and all water is subtracted. Furthermore, all VOCs that are not relevant for ozone generation in ground-level atmosphere ("exempt compounds") are subtracted. Here you can download an illustration. Limit values are different per product group and application.
Some examples of limit values (Volatiles minus water minus exempt compounds):
- Flooring adhesives 50 g/l
- Rubber floor adhesives 60 g/l
- Wood floor adhesives 100 g/l
- Indoor sealants 250 g/l
The data can be determined by calculation or by testing. References methods include SCAQMD rule 1168, SCAQMD methods 304 and 303, ASTM D2369 and D3960, EPA method 24. Also ISO 11890-1 is equivalent to ASTM D2369.
For testing, the laboratory needs to know what type of adhesive or sealant the test is about. Please see a table with the different product groups and respective limit values. And please use our LEED specific order form.
Other points may be achieved for recyclable and for recycled content.
US GBC declared in October 2014 that projects that run under LEED 2009 may decide to apply the low VOC credit of LEED v4.
US GBC operates a list of common low VOC rating systems that allow showing product compliance. Some of them are directly compliant, such as the Indoor Air Comfort GOLD program; other ones are compliant only if the test report shows low formaldehyde emissions of max. 10 µg/m³ after 28 days the reference room, in line with the French A+ class. The French A+ class alone is sufficient only for Composite Wood products, not in general. The list of compliant rating systems can be seen on the US GBC website.
Further information regarding LEED:
- USGBC Contact page
- List of LEED compliant VOC rating systems
- LEED User with tips, help and discussion forum
- GBC Italia
Eurofins VOC related services
Eurofins offers documentation of compliance with the specifications on emissions of VOC and aldehydes by independent and ISO 17025 accredited testing, and if relevant also with external surveillance (inspections, re-testing), and certification, e.g. in combination with the Eurofins operated certification programme Indoor Air Comfort - certified products.
Eurofins operates both an accredited and notified test house and an approved ÜZ certification body. VOC emissions testing for any program or regulation can be easily combined with tests for other regulations or labels such as Belgian VOC regulation, French VOC regulations, German VOC regulations, EMICODE, German Blue Angel, Finnish M1 and US tests. Such combinations allow to save money compared with separate testing for each of these purposes. One example is the Eurofins Pan-European test package.
Certification and testing services for Ü mark, CE mark and the Eurofins certification program Indoor Air Comfort - certified products can be ordered in parallel for use on different market segments - there will be significant costs saving when compared to ordering these services separately.
Contact to VOC Testing Laboratories
Please see here contact information of Eurofins VOC testing laboratories in Europe, China and Japan: