About

About Us

At Porous Flexible Paving Store, we’re passionate about providing top-quality supplies and expert guidance to help you transform traditional paving into porous surfaces with ease.

With a focus on innovation and sustainability, we strive to empower our customers to embrace environmentally friendly solutions for their paving projects. Whether you’re a seasoned professional or a DIY enthusiast, we have the products and expertise to support your journey towards creating porous pavements that are not only functional but also environmentally responsible.

Our commitment to excellence extends beyond just offering products. We understand the unique challenges and intricacies of porous pavement installations, which is why our team is dedicated to providing personalized assistance and support every step of the way. From selecting the right materials to offering guidance on installation techniques, we’re here to ensure your project is a success.

"Genesis is the very start of something, its birth."

In the beginning, we spent years designing new ways to preserve trees in challenging urban settings. Naturally we were invested in learning about paving solutions which could potentially solve the environmental obstacles we faced on our job sites. There were porous concrete and rubber pavements, but those options suffered from limitations such as warping in extreme weather and significant maintenance requirements. When we encountered PFP and learned about its resilience, adaptability, and amazing porosity we were sold. It was a product that could meet real world demands for both quality of construction and preservation of natural resources. Shortly thereafter we became the District of Columbia’s certified installer of the product. We have since expanded and now offer PFP online.

What is PFP?

1. Rubber

Nominal 1/4 inch wire free SBR recycled tire granule

2. Stone

Nominal 3/8 inch size aggregate rock

3. Binder

Elastomeric urethane binder

Features

(Click on honeycombs for more information)

Flexible

Will not crack even with root intrusion

Porous

Allows for ground water recharge and storm water management (BMP’s), 2,000 gallons per square foot/per hour!

Dynamic

Heavy objects do not leave indentations when removed, 70,000 PSF compressive strength

Water Diffusion

Has erosion control uses (e.g., Embankments, Swales, etc.)

Impact Absorption

Injury reduction to joggers and walkers, meets ASTM six foot fall criteria

Slip Resistant

Exceeds ADA guidelines, reduces slip, fall and tripping hazards

Freeze/Thaw Resistance

Reduction of operation and maintenance costs such as repairing potholes

Dissipates Mechanical Shock

Resistant to snow plow damage

Cold Weather

50-75% reduction in snow melting

Non-flammable

Does not burn without the use of an accelerant

Non-toxic

Can be installed near bodies of open water or wetlands, filters out phosphates and nitrates by up to 80%.

Environment Friendly

Dana N. Humphrey, Ph.D., P.E., University of Maine concluded in a report dated 1993-1997 that tire shreds had a negligible impact on water quality for the near neutral ph conditions.

Environmental Considerations

The dynamic PFP material is the perfect solution whether you are looking to preserve natural resources within an urban environment, or building near delicate ecosystems. PFP is highly porous, promoting groundwater recharge at the rate of 2,000 gallons per square foot, per hour. This leads to healthier tree growth and a solid root base enhanced by natural water and air reaching the roots. Furthermore, PFP removes nutrient loading associated with storm water runoff (reducing dissolved nitrates and phosphates entering into the groundwater). In addition to the numerous benefits PFP provides after installation, the product is also made from recycled tires. 50% of the content of the mixed material is comprised of rubber granulate equating to 1/3 of a tire per square foot. By using PFP on your site you’ll be removing tires from landfills and using them to create low maintenance and long lasting solutions for your environmental challenges.

PFP is an exemplary urban paving solution

PFP is an ideal non-invasive trail option for forests/wetlands

PFP design can be as intricate as your imagination

1. SSc6.1 Stormwater Design, Quantity Control

(1+ point) – applies to landscaping and water usage
2.SSc6.2 Stormwater Design, Quality Control

(1+ point)
3. MRc4.1/4.2 Recycled Content, 10%/20%/30%

(1-2+ points) – up to 2 points are awarded to materials which are recyclable, or use recycled materials in their infrastructure
4. MRc5.1/5.2 Regional Materials, 10%/20%/30%

(1-2+ points) – this category can earn 1 point if 20% of all materials used are manufactured within a 500 mile radius of the project, and 2 points if half of the materials are.
5. IDc1 Innovation in Design

(1+ point): this category encourages designers to use new and creative construction approaches, in which PFP may play a role.

FAQ

Will PFP crack?

NO – Because of the elastic properties (even with root intrusion).

Will PFP have to be resealed because of ultraviolet light breakdown?

NO – Unlike two-part epoxy resins, the products are bound together with a single component urethane that has the same durometer as that of the rubber granule and which is totally resistant to UV degradation.

Do freeze-thaw conditions affect the integrity of PFP?

NO – It is like one large and continuous expansion and contraction joint. Because of the elastic properties of the urethane and the compression capabilities of rubber, the pressure that is exerted by freezing water does not interfere with the mechanical strength of the products.

Is PFP porous?

YES – The products are manufactured using a nominal 3/8” rubber granule which enables fast evacuation of water because of the “open-pore” design.

Is PFP slip-resistant?

YES – The surface is composed of thousands of rubber granules giving it incredible non-slip qualities.

Is PFP flammable?

NO – Tire chips were tested in accordance with the Federal Hazardous Substance Act (16 CFR 1500.44) to determine whether tire material would be considered flammable (a material is considered flammable if it ignites and burns with a self-sustained flame at a rate greater than 0.1 inches per second along its major axis). From the test results it was concluded that scrap tire material is considered a non-flammable.

Does PFP smell?

YES & NO – Only initially, similar to a new carpet having a smell. Once it has been installed for a few days, the smell goes away.

How long does PFP take to cure?

Under normal conditions it is recommended that a period of 24 hours be allowed for the Flexi-Pave to cure.

Can PFP be installed in the rain?

NO – PFP is a moisture-cured product, meaning if the product were mixed in the rain, the curing would be greatly sped up and cause the mixture to stiffen to the point of making it impossible to work with. Although we cannot install in the rain, we do use this “moisture curing” quality to our advantage and sometimes use a light spray of water after the PFP has been installed in order to accelerate the curing process.

Will PFP fade in time with exposure to the sun?

YES – Everything fades at certain speeds with continual exposure to sunlight and obviously at different speeds depending upon your location. PFP has UV inhibitors in the colorization process therefore giving longevity to color-fastness.

PFP can be installed on top of...

Wood
Steel
Aluminum
Concrete
Asphalt
Roofing Felt
Compacted Aggregate
Enamel Tile
Fiberglass

PFP is resistant to...

Chlorine
Ozone
Bromine
Muriatic Acid
Salt Water
Oil
Transmission Fluid
Hydraulic Fluid