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How Impervious Surface Limits Affect Your Outdoor Living

Impervious surfaces such as driveways, patios, roofs, and other man-made structures are common features of our exterior living landscape. These surfaces, unlike natural ground cover, do not allow water to penetrate into the soil, leading to various environmental and regulatory implications. Many municipalities have established impervious surface limits to manage these impacts, which can significantly influence how homeowners plan and enjoy their outdoor living spaces. AWS is here to help you learn how impervious surface limits can affect your plans for outdoor living.

Understanding Impervious Surface Limits

Impervious surface limits are regulations set by local governments to control the amount of land that can be covered by impervious materials. These limits are typically expressed as a percentage of the total lot area. For example, a regulation might state that no more than 30% of a property can be covered by impervious surfaces.

The primary goal of these regulations is to mitigate the environmental impacts associated with increased runoff. Impervious surfaces prevent rainwater from infiltrating the ground, leading to higher volumes of surface runoff. This runoff can overwhelm stormwater management systems, contribute to flooding, and cause erosion. Additionally, it can carry pollutants such as oil, chemicals, and debris into nearby water bodies, degrading water quality.

The Impact on Outdoor Living Plans

  1. Design and Planning Restrictions: Impervious surface limits can constrain the design and planning of outdoor living spaces. Homeowners who wish to install extensive patios, large driveways, or swimming pools must carefully consider these restrictions. This often requires creative solutions, such as incorporating permeable materials or limiting the size of impervious features. Your contractor should be aware of these restrictions and have the appropriate exterior drainage systems installed as part of your plan.
  2. Increased Use of Permeable Materials: To comply with impervious surface limits while still creating functional outdoor spaces, homeowners can use permeable materials. Permeable pavers, gravel, and reinforced grass can provide a solid surface for walking or driving while allowing water to infiltrate the ground. These materials can help maintain the aesthetic and functionality of an outdoor space without exceeding impervious surface limits.
  3. Enhanced Landscaping Solutions: Landscaping becomes a crucial aspect of designing outdoor spaces under impervious surface regulations. Homeowners can utilize features such as rain gardens, green roofs, and bioswales to manage runoff and enhance the visual appeal of their properties. These features not only help comply with regulations but also contribute to the overall health of the local ecosystem.
  4. Potential for Increased Costs: Complying with impervious surface limits can sometimes lead to increased costs. Permeable materials, drainage systems, and innovative landscaping solutions can be more expensive than traditional impervious options. Additionally, homeowners may need to hire professionals like those at AWS who are experienced in sustainable design and stormwater management, further adding to the costs.

Practical Tips for Homeowners Before Your Next Outdoor Project

  1. Consult Local Regulations: Familiarize yourself with your municipality’s specific impervious surface limits and related requirements. This information is usually available on the local government’s website or through the planning department. If you do this first you’ll know what you might be up against as your project begins.
  2. Evaluate Existing Conditions: Before making any changes, assess your property’s current impervious surface coverage. This will give you a baseline understanding of what changes are necessary to comply with local regulations.
  3. Seek Professional Advice: Hiring a landscape architect or engineer with experience in stormwater management can be beneficial. These professionals can provide guidance on the best practices for managing runoff and complying with impervious surface limits.
  4. Incorporate Permeable Solutions: Explore options for permeable materials, innovative landscaping techniques, and any necessary drainage assistance. Consult with professionals who specialize in sustainable design to create a plan that meets both aesthetic and regulatory needs.

For Impervious Surface Solutions in the Delaware Valley Contact AWS

While Impervious surface regulations can pose challenges for homeowners, they also provide opportunities to create more sustainable and environmentally friendly outdoor living spaces. By understanding and complying with these limits, homeowners can enjoy beautiful, functional, and resilient outdoor areas that contribute positively to their communities and the environment. If you live in the Delaware Valley and need help with impervious surface solutions for your outdoor living, contact the exterior drainage pros at A Waterproofing Solution, Inc.

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