This was an ECO-friendly remodel of a Southern California home. The materials used to

complete the project were for the most part recycled or ECO-friendly “green” materials.

Even the original concrete driveway was recycled. It was broken into pieces and later

used to create planters and walkways in the rear of the home. The concrete driveway was

then replaced with Belgard’s Subterra™ Pavers.

PERMEABLE SOLUTION CHOSEN FOR 3.5 MILLION DOLLAR GREEN REMODEL

Subterra™ Permeable Paver Green Remodel - Southern California

11.3 [287.0]7.5 [191.0]

Subterra™

WHO SELECTED BELGARD HARDSCAPES AND WHY?

Richard Byrd and his team at Byrd Development chose Belgard Subterra for its permeability and architectural appeal. The home’s existing driveway had an extreme slope that created problems during heavy rain falls. Aside from the inherent problems caused by excessive water runoff, vehicle trac-tion was a serious issue. The solution was found in a new permeable pav-ing system developed by Belgard to address the needs of today’s environmental conscience homeowners, contractors and professionals. Belgard Subterra paving stones offered both the permeability and the classic good looks the Byrd Team was looking for.

WERE ANY OTHER PERMEABLE PAVER PRODUCTS OR POROUS PAVING SYSTEMS CONSIDERED?

No. Belgard Subterra was chosen exclusively because it met the project’s criteria - primarily functionality, safety, and a look compatible with the existing architectural style.

PROJECT SUMMARY AND ARCHITECTURAL OR ENGINEERING DETAILS (UNIQUE FEATURES, CHALLENGES, ETC.)

This was a large LEED project featuring many ECO additions to the home’s remodel. Byrd Development installed water runoff systems to capture rain water and store it for later plant watering and growing. The drainage sys-tems came from the roof gutters and drain pipes beneath the pavers, as well. Solar shade systems had solar panels above and daily stored power for landscape lighting at night. Recycled materials, such as decorative tiles, iron railings and old concrete, were used throughout the inside and outside of the home. This home was a unique, completely ECO-friendly home minimizing its environmental impact during project construction, remodel completion and for future homes. This home/project was a com-plete “green” remodel, LEED project, and home expansion by Byrd Development and the Discovery Channel. The ECO program will air on TV in early 2009. Episode 13 will feature our Subterra paver and install on the Discovery Network Channel.

LEED AND BELGARD PERMEABLE PAVINGSTONE SYSTEMSThe Leadership in Energy and Environmental Design (LEED) program was originally developed for the U.S. Department of Energy. LEED utilizes a point rating system to recognize sustainable site and building design. Many organizations were involved in developing the rating system and certification program. The LEED program is administered by the U.S. Green Building Council www.usgbc.org Currently, many municipal projects that are city owned or city funded are mandating LEED point objectives, while private sector projects are pursuing LEED credit points on a voluntary basis.

BELGARD PERMEABLE CONCRETE PAVING STONE SYSTEMS CAN EARN CREDIT POINTS IN THE LEED RATING SYSTEM.

Please refer to the ICPI (Interlocking Concrete Paver Institute) www.icpi.org. Tech Spec Number 16 for a complete description and detailed explanation of LEED credits. LEED credits for new and major renovations earn points from six broad rating categories and of these six, the two primary categories that pertain to permeable concrete paving stones are Sustainable Sites (SS) and Material & Resource (MR).

* Request based on an article entitled “Performance and Fields of Application for Permeable Paving Systems” by Sonke Borgwardt published within the 2/97 issue of Performance and Field Application for Permeable Paving Systems.

RESULTS OF WATER INFILTRATION TESTING

During the winter of 2008-09, a total of 19 water infiltration test were conducted on Belgard Subterra Permeable Pavers by Colorado State University’s Hydraulics Laboratory. The maximum rainfall intensity which did not generate pooling on the pavers was determined to be 814 in/hr. The 814 in/hr value was determined based on a system immediately following installing and does not account for any sediment accumulation that may occur naturally over the life of the system. To provide a representative value for the life of the paver system, this value was reduced by 80% to 163 in/hr. at Oldcastle’s request.*

The following chart represents the maximum infiltration rate without pooling at 20% (or 163 in/hr) of system capacity:

Series Date DischargeRainfall Intensity

(in/hr)20% Capacity

(in/hr)Water Depth

Above Paver (ft)

1 12-31-08 0.243 437 87 0.000

1 12-31-08 0.354 637 127 0.000

1 12-31-08 0.452 814 163 0.000

1 12-31-08 0.491 884 177 0.001

1 12-31-08 0.551 992 198 0.024

1 12-31-08 0.599 1078 216 0.055

1 12-31-08 0.651 1172 234 0.094

2 12-31-08 0.450 810 162 0.000

2 12-31-08 0.491 884 177 0.006

2 12-31-08 0.552 994 199 0.021

2 12-31-08 0.600 1080 216 0.042

2 12-31-08 0.651 1172 234 0.087

3 12-31-08 0.490 882 176 0.011

3 12-31-08 0.552 994 199 0.028

3 12-31-08 0.599 1078 216 0.050

3 12-31-08 0.650 1170 234 0.092

4 1-5-09 0.599 1078 216 0.061

4 1-5-09 0.650 1170 234 0.107

4 1-5-09 0.714 1285 257 0.217

Precipitation data for 24 North American cities was collected and compared to the

163 in/hr. The maximum value for all cities reported for the 100 year storm was 7 in/hr,

well below the 163 in/hr. infiltration rate

____________________

30 Minute Duration Precipitation DataRainfall 30 min duration (in/hr)

CITY 100 YRBoston 4.50

New York 5.00

Washington DC 6.00

Charlotte 5.50

Atlanta 5.20

Cleveland 4.00

Minneapolis 4.50

Dallas 6.50

St. Louis 5.00

Kansas City 5.50

Denver 3.50

Seattle 1.50

Las Vegas 2.00

San Diego 2.50

Phoenix 3.50

Houston 7.00

Miami 7.00

Orlando 6.50

San Francisco 3.00

Quebec 2.76

Ottawa 3.54

Toronto 3.54

Montreal 3.54

UNDERSTANDING PERMEABLE PAVERSThe key to understanding permeable pavers is to perceive the pavement and the base aggregates as a system, instead of separate products.

“As water rains down on the pavement, it begins its journey by seeping through the specially-fi lled joints in the pavers, and then through the base aggregates, which naturally fi lter the pollutants,” said Chuck Taylor. “As it travels down, the water is stored in the base, until it reaches the natural underlying soils and recharges the ground aquifers that fi lter the water while allowing pedestrian and vehicular traffi c on the surface.”

Depending on site conditions and owner preferences, permeable pavement can be designed to obtain full, partial or zero exfi ltration. Full exfi ltration is the most often desired and used application, which sees all the rain water stored in the base leeching down to the underlying subgrade. When natural soils are not permeable enough, or storms are too heavy, perforated pipes are added to alleviate the excess water. Thirdly, an

impermeable geo-membrane can be installed above the natural soils to prevent exfi ltration of contaminated fl ows when the pavement is installed in industrial sites.

About Belgard® CommercialBelgard Commercial is part of the Oldcastle Architectural Group, the largest concrete products manufacturer in North America. With over 180 locations and a company culture characterized by a commitment to customer satisfaction, Oldcastle adheres to a level of service and consistency that no other supplier can match. Our combination of local market presence and national capabilities allows us to meet and exceed the demanding needs of an ever-changing industry.

Oldcastle Architectural Products Group900 Ashwood Pkwy, Suite 600, Atlanta, GA 30338Phone: 1-877-BELGARDwww.belgardcommercial.com

© Copyright 2014, Oldcastle BEL14-004 Case Study 4

Direct Infiltration Into Permeable Subgrade

Peripheral Storage With Slow Infiltration

Residential Plastic Edging / Infiltration And Drainage Pipe Discharge

Infiltration And Drainage Pipe Discharge