Introduction to Permeable Pavement Systems

In recent years paver manufacturers, homeowners, commercial businesses and contractors alike have became more environmentally conscious than ever before and have taken serious steps to help in the recovery and conservation of storm water. Lancaster area Townships recently have signed an initiative to manage storm water run off for the Chesapeake Bay Watershed. For these reasons cities and townships have came under pressure to reduce water run off and protect the environment.

As part of the efforts to replenish the water supply by filtering and returning storm water back to the environment the installation of permeable pavement systems has skyrocket in areas where permeable pavers is an option for water management.

1. Benefits Of Permeable Paver Systems

The benefits of permeable pavement include outstanding beauty, easy care and long term efficiency adding value, class and elegance to your property. They are a great source of storm and water management for residential and commercial applications allowing water percolation back into the ground thus reducing the risk of severe flooding. In addition, permeable pavement systems help in eliminating water puddles and keeping contaminating pollutants  away from rivers, streams, lakes and ponds. Permeable pavements also help control ground erosion and speed up the deicing process of snow melting and removal saving you money in snow removal expenses.

2. Permeable Paver Systems for Sale in PA

Wondering where to get help on installing a permeable pavement system? Sauder’s Hardscape Supply offers you an extended and beautiful selection of colors, sizes and styles of permeable pavements produced by top manufactures in the hardscape industry. Our knowledgeable permeable hardscape supplies staff is ready to provide you with valuable information to help you in the selection of your permeable pavements systems. Visit our PA Hardscape Supplies Showroom and allow  us to demonstrate how  a permeable paver system works.

3. Basic Permeable Paver Installation

The installation of permeable pavements systems vary depending on the application where they are to be used as a water management solution. There are three types of PERMEABLE PAVEMENT filtration bases and options to consider while planning your project, full exfiltration, partial exfiltration and no exfiltration. The base setup and materials needed are distinctive for each function.

–  Excavation: The dept of excavation is subject to the project application and filtration required for the permeable paver system.

–  Geo Textile, impermeable liners and drain pipes: The installation of geo textile fabric is required for stabilizing the base aggregates. Depending of the filtration base option on the permealbe paver system, drain pipe may be or may not be needed.

–  Sub base aggregates: Must residential permeable systems require a minimum of 6” of number 2” stone, 4” of 3/4” stone. In commercial applications the amounts will vary according to the system application. A base plate compactor needs to be run over the 3/4”, without crushing  stone, until there is no visible movement of the aggregate. Contamination of the base must be avoided at all times.

–  Edge restraint: It is the “frame” for the permeable paver system. It can be hidden or exposed depending on the project specifications. It can rest on open grade or dense base graded base.

–  Bedding course: 1 1/2” – 2” of 1/4” rice stone is used for the paver setting bed. The screed bedding should not be disturbed by pedestrians or construction equipment and must be free of any contamination.

–  Permeable Pavers Installation: Pavers are placed following the chosen pattern design and application of the project. Run a roller compactor or a compactor with a poly pad to set the paver in the bedding base.

–  Joint Fill: The same 1/4” stone is used to fill the joints by sweeping the stone to fill the joints. The surface must be clean of any excess stone before running a roller compactor, preferably, if using a plate compactor then a poly pad should be use to prevent the pavers from being scuffed.

Post Installation Care: Prevent the joints in the permeable pavers system from  clogging by maintaining it free of debris and fine aggregates. Refilling the joints is part of the overall maintenance of the permeable pavers system.