a new approach to green building: caulks, sealants & adhesives

A New Approach to Green Building: Caulks, Sealants & Adhesives

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Best Practices

Hanley Wood is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. Certifications of Completion for non-AIA members are available on request.

This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Question related to specific materials, methods and services will be addressed at the conclusion of this presentation.

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4000 bc 3000 bc 2000 bc 1000 bc 500 ad 1000 ad 1900s

Tree sap

Animal glues

Used for pottery,

burial rituals

Egyptians used natural glues to adhere furniture

& pottery

Literature describing process

to make animal glues appear

Paintings show use of wood gluing as method of assembly

Greeks & Romans used blood, bones, hides, bees wax to

caulk boats

Adhesives improved strength, versatility & power of weaponry

Advances in chemistry lead to synthetic adhesives for strength and sealants for flexibility.

History of Adhesives

AdhesivesAdhesives

NaturalNatural SyntheticSynthetic

Animal GluesAnimal Glues

Fish GlueFish Glue

Casein GlueCasein Glue

StarchStarch

CelluloseCellulose

EpoxiesEpoxies

CyanoacrylatesCyanoacrylates

ThermoplasticsThermoplastics

Rubber-based Solvents Rubber-based Solvents

Anaerobic AdhesivesAnaerobic Adhesives

RTV SiliconeRTV Silicone


1900s: The industrial revolution

20s-30s: advances in chemicals and plastics created plastic/synthetic resins

40s-50s: WWII led to development of neoprenes, epoxies and cyanoacrylates


1. Identify how adhesives and sealants can contribute to green building practices, specifically LEED and NAHB Certification.

2. List three performance benefits of high-performance, low-VOC adhesives and sealants.

3. Identify the differences between VOC-compliant products and products with low-VOC content.

4. Describe the importance of third-party certification when selecting sealants and adhesives.

5. Describe the benefits of using a series of adhesive and sealant products.

Learning Objectives

There are nine project categories

1. New Construction

2. Existing Buildings

3. Homes

4. Commercial Interiors

5. Core & Shell

6. Schools

7. Retail

8. Healthcare

9. Neighborhood Development

LEED (Leadership in Energy and Environmental Design) promotes a whole building approach to sustainability.

LEED Certification

LEED for Homes Version 2.2

LEED Certification

Point Adjustments based on square footage

LEED Certification

4545 The minimum number of points required for a home project to be certified as “green”

1616 The number of points available in the Materials and Resources category

88 Adhesives and sealants can contribute up to eight points towards LEED certification in the Environmentally Preferable Products section of the Materials & Resources (MR) category

LEED Certification

For more information about LEED project certification guidelines and a project check-list visit www.usgbc.org/.

http://www.usgbc.org/

Materials and Resources

Efficient utilization of materials, selection of environmentally preferable materials and minimization of waste during construction.

Environmentally Preferable Products

Increase demand for environmentally preferable products and products or building components that are extracted, processed and manufactured within the region.

LEED Intent

LEED guidelines identify standards for environmentally preferable products

LEED Certification

Materials and Resources: Environmentally Preferable Products VOC-emissions standards

LEED Certification

High performance, low-VOC adhesive and sealant products are available for the

following applications:

1. drywall adhesives 2. acrylic indoor/outdoor sealant

3. draft & acoustical sealant 4. sub-floor & deck adhesive

5. general purpose adhesive 6. flame and smoke sealant

7. minimally expanding foam sealant

* All told, these application-specific adhesives and sealants can contribute 3.5 of the maximum 8 points for the Materials and Resources Environmentally Preferred Products category.

LEED Certification

NAHB (National Association of Home Builders) Green Building Program seeks to move green building practices in to the mainstream.

The green construction process is divided in to seven guiding principles- Lot Design, Planning and Development- Resource Efficiency- Energy Efficiency- Water Efficiency- Indoor Environmental Quality- Operation, Maintenance and Homeowner Education- Global Impact

Adhesives and Sealants can contribute to Energy Efficiency and Global Impact

NAHB Certification

Points Required for the Three Different Levels of Green Building

Guiding Principal Bronze Silver Gold

Lot Design, Preparation, and Development 8 10 12

Resource Efficiency 44 60 77

Energy Efficiency 37 62 100

Water Efficiency 6 13 19

Indoor Environmental Quality 32 54 72

Operation, Maintenance, and Homeowner Education 7 7 9

Global Impact 3 5 6

Obtain additional points from sections of your choice 100 100 100

NAHB Certification

Energy Efficiency

The intent of energy efficiency is to integrate a comprehensive approach to the design of the building site, envelope and mechanical space conditioning systems.

Additional points are available for using green building products.

NAHB Certification

See NAHB certification guidelines section 3.3.1

for more information.

National Association of Home Builders

Energy Efficiency

Improvements in energy efficiency can be made by sealing gaps in insulation and proper installation.

NAHB Certification

http://www.nahbrc.org/greenguidelines/userguide_energy_design.html

Most common air infiltration sites in residential building

NAHB Certification

Energy Efficiency

To verify the energy efficiency of a home, third-party verification can examine the following systems:

- duct installation

- building envelope air sealing details

- proper installation of insulation (no gaps, voids or compression)

- batt insulation cut accurately to fit cavity

- windows and doors flashed, caulked and sealed properly

NAHB Certification


The use of low-VOC sealants and adhesives can contribute 5 points towards an NAHB Green Building certification.

Adhesives and sealants should comply to the California Air Resources Board Regulation for Reducing VOC Emissions from Consumer Products.

NAHB Certification


According to the California Air Resources Board Technical Data Sheets, the following figures are acceptable VOC emissions for green buildings.

Construction adhesives: the greater of 200 grams/liter or 15% by weight

Sealants and caulks: the greater of 60 grams/liter or 4% by weight

Contact adhesives: the greater of 650 grams/liter or 80% by weight

NAHB Certification


To verify that adhesives, caulks and sealants are within the acceptable limits of NAHB certification, a third-party inspection can verify performance and proper installation.

Currently the California Air Resources Board has the most stringent guidelines on “acceptable” VOC emissions.

NAHB Certification

For more information on NAHB National Green Building program guidelines visit the NAHB program website.

http://www.nahbgreen.org/

In addition to national building practices and regulations, you should always check with state and local codes concerning VOC compliance. Some states have adopted lower-VOC regulations.

To learn if your state has adopted lower-VOC regulations visit the Environmental Protection Agency (EPA) at www.epa.gov

NAHB Certification

http://www.epa.gov/






Learning Objectives

Low-VOC adhesives and sealants can

Reduce the health risks of building occupants, installers and contractors

Help contribute to improved air quality (indoors and out)

High-performance low-VOC adhesives and sealants can provide uncompromised bond strength and flexibility

Performance Benefits

What does VOC mean?

VOC stands for Volatile Organic Compounds.

VOCs are organic compounds that evaporate into the atmosphere at room temperature.

VOCs often have noticeable odors similar to gasoline, solvents, paints, stains, lighter fluid, sealants and adhesives.

Performance Benefits – Reduced Health Risks

How do VOCs affect health?

VOCs can contribute to smog and certain health problems

- headaches

- loss of coordination

- nausea

- damage to liver, kidneys and central nervous system

- eye, nose, throat or skin irritations

- some VOCs have been labeled as carcinogenic

Severity of health problems depends on the VOC, length and level of exposure.


Attention Specifiers, Contractors and Installers:

People who regularly handle VOCs are at the greatest risk of developing health ailments associated with VOC exposure.

To Reduce Exposure:

Increase ventilation, properly discard unused materials, store them properly, do not buy excess amounts

Buy green building products (not all adhesives and sealants are green)

- look for products that will meet the standards set by green building programs such as USGBC and NAHB

- look for third party certification of products for credibility


Improve Air Quality

Reducing VOC content in the air will help improve air quality for the installers and the future building inhabitants.

Low-VOC products emit significantly fewer grams of VOCs per liter than do VOC-compliant products.

Performance Benefits – Improved Air Quality

Strength and Flexibility

New low-VOC adhesives are available that have similar strengths and performance characteristics to traditional adhesives.

Performance characteristics such flexibility are uncompromised with new high-performance, low-VOC caulks and sealants

These new low-VOC products both contribute to green building practices.

Performance Benefits – Strength & Flexibility

Know the Products You Specify

By recommending or specifying low- or no-VOC products instead of VOC-compliant products, architects can directly help the environment and reduce the health risks for installers and building occupants.

Homeowners are aware of the importance of the Green movement and will appreciate the use of low-VOC products to ensure the health and safety of their family and the environment.

Performance Benefits






Learning Objectives

Compliance vs. Safety for construction adhesives

However, there are adhesives on the market that emit fewer than 2 g/l

However, there are sealants on the market that emit fewer than 5 g/l

VOC-compliance vs. Low-VOC content

Regulation – Adhesives must emit fewer than 200 g/l to be VOC compliant (with CARB, California Air Resources Board)

Regulation – Sealants must emit fewer than 60 g/l to be VOC compliant (with CARB, California Air Resources Board.)

0

20

40

60

80

100

120

Type of Adhesive & Sealant

lbs

of

VO

C

Traditional Adhesives &Sealants

Low-VOC Adhesives &Sealants

VOC Difference

Estimated VOC Content in lbs for a 2100 ft2 residential home


**These numbers are based only on adhesives and sealants used inside a standard 2100ft residential home. There are other sources of VOCs inside a home such as paints, stains and carpets.

Compliance vs. Green

VOC-compliant products are considered to be relatively safe but they are not necessarily green.

Current CARB VOC regulations only affect ozone-depleting solvents. Non-ozone depleting products can have high VOC emissions and still be CARB compliant.


Studies by the Environmental Protection Agency (EPA) have shown that VOCs are up to 10 times more concentrated indoors than outdoors.

Regardless of location, VOCs are present in both rural and highly industrial settings.

0102030405060708090

100

Indoors Outdoors

Indoor VOC

Out door VOC


Future Regulations: Low-VOC Adhesives and Sealants?

It is important to note that each state has its own VOC compliance measures and that these are constantly changing.

In the future a universal code may require the use of low-VOC adhesives and sealants to help ensure green building standards.

Third party certification of products may be required.







Learning Objectives

GreenGuard® Environmental Institute (GEI)

Industry independent, non-profit organization that oversees GreenGuard® Certification Program

The program establishes acceptable indoor air standards for indoor products, environments and buildings.

Third-party Certification

GreenGuard® Certification Programs

Founded in 2001 to establish the first third-party certification program of proven emissions standards

A resource for specifying and procurement specialists for low-emitting products

GreenGuard Online Product Guide identifies certified products


GreenGuard® Certification Programs

Indoor Air QualityDefines emissions standards for indoor use of productsDetermines test methods, allowable emissions levels, etc.

Children & SchoolsTests chemical emissions from building products used in schoolsChildren are more heavily exposed to environmental toxins than

adults

Building ConstructionCertifies new construction of commercial and multi-family housingFocuses specifically on safeguarding against mold


Adhesives and Sealants applicable to the

following can be certified:

1. General Construction Adhesives

2. Surfacing Adhesives

3. HVAC Adhesives

4. Surface Sealants

5. Wall covering Adhesives

6. Furniture Construction

7. Flooring Adhesives

8. Tile and Stone Adhesives

GreenGuard® Indoor Air Quality Certification Program


Low-VOC adhesives and sealants certified by GreenGuard are available for:

1. Sub-floor and deck construction 2. Drywall panel construction

3. Electrical, plumbing and heat ducts 4. General caulking/sealing

5. Low expansion insulating foams 6. Multi-purpose surface needs

GreenGuard® Indoor Air Quality Certification Program



2. List three performance benefits of low-VOC adhesives and sealants.




Learning Objectives

Consistent Quality

Rest assured that the products you specify will meet or exceed even the most stringent of “Green” standards.

A series of low-VOC adhesives, caulks and sealants can be used independently of each other or in combination to meet LEED and NAHB VOC requirements.

A product series from one manufacturer will be produced with strict standards to ensure the highest quality low-VOC products on the market.

Benefits of a Product Series

Easy to Identify

A single product series will have a consistent look, making the products easy to identify.

You will know if they are certified by a third-party such as GreenGuard.


Easy to Specify

A series of low-VOC products under one name will be easy to specify. You will not have to call for several products from different manufacturers.

You will not have to worry about meeting LEED and NAHB VOC off-gassing requirements with one product and not another.

Third-party certified products ensure that you are specifying the highest-quality, safest and most green products available. You can easily specify a range of certified products – all from the same manufacturer.


Thank You

The OSI® GreenSeries™ product line is the first brand to offer high-quality interior and exterior construction adhesives and specialty sealants that combine high performance and long-lasting quality with environmentally friendly formulations. These very low-VOC products

contribute to improved indoor air quality and energy efficiency. OSI® GreenSeries™ products far exceed what is considered VOC-compliant today.

For more information, contact an OSI® GreenSeries™specialist.

mailto:[email protected];%[email protected]

a new approach to green building: caulks, sealants & adhesives

Documents

sealants adhesives

synthetic adhesives

lowvoc adhesives

natural glues

s tree sap animal glues

green building practices

lowvoc content

voccompliant products