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Importance of Lines in Design

Aug 30, 2019
Video Length:  54:30
Presented By:  Daniel Martin

Lines, partitions, and edges are some of the most powerful design tools in a landscape architect's arsenal. Guest presenter Daniel Martin from Permaloc will explain the significant economic and environmental benefits of edging with expertise. Get to know some of the materials you might use, along with the pros and cons of each, so you can specify the right ones for the surfaces and edges in your projects.

Webinar Contents:

Note: The following catalog of content covered in this webinar is time stamped to allow you to follow along or skip to sections of the video that are relevant to your questions. You can also search for content on this page using the FIND command in your browser (CTRL + F in Windows, Command + F in Mac OS.)

 

  • Intro/TOC
  • Sustainability in the Landscape
  • Why Use Edging?
  • Application-Specific Edgings
    • Landscape Beds
    • Maintenance Strip
    • Aggregate Walkway
    • Brick Paver
    • Permeable Pavement
    • Asphalt Surface
    • Athletic/Sport Surface
    • Green Roof
  • Edging Materials
  • How to Choose

 

0:00 – 5:01: Intro/TOC

5:02 – 9:02: Sustainability in the Landscape

Sustainable landscapes are responsive to the environment, are regenerative, and can contribute actively to the development of healthy human communities.

 

Sustainable landscapes sequester carbon, clean the air and water, increase energy efficiency, restore habitats, and create value through significant economic, social, and environmental benefits.

 

How is sustainable landscaping accomplished? (5:45)

Sustainable landscapes are accomplished through thoughtful, intelligent design and product selection. Careful consideration is given to products that last a lifetime.

6:28 – 9:02: Why Use Edging?

  • Designer’s intent:
    • Quality edging helps assure that the lines the designed draws will stay intact.
  • Looks better:
    • The clean lines created by the edging are pleasing to the human eye.
  • Reduces costs:
    • Edging lines permanently means that they do not require continual maintenance.

9:03 – 33:54: Application-Specific Edgings

  • There are many different applications on which to use edging.
  • Each application has different requirements for a variety of edging shapes and features.
  • Knowing the applications, and how they are constructed, is important to selecting the correct edging to be used.

 

Edging applications (9:59)

  • Landscape beds
  • Maintenance strip
  • Aggregate walkway
  • Brick paver
  • Permeable pavement
  • Asphalt surface
  • Athletic/sport surface
  • Green roof

 

Landscape Beds (10:40)

Landscape beds are the most common use for landscape edging. Edging can be used to separate turf from planting soil, mulch, stone, glass cullett, or any other bedding material.

 

Maintenance Strip (12:13)

A maintenance strip is an area along a building or fence usually filled with stone to ease the burden of maintenance for the area.

 

In this application, pin-straight lints are usually desired wot create parallel lines.

 

Aggregate Walkway (14:58)

Aggregate walkways are typically a winding path filled with decomposed granite, pea gravel, or some other aggregate. They may or may not have a compacted sub-base.

 

Brick Paver (18:17)

Brick pavers are popular for walkways, driveways, and patios. In order to keep the pavers in place for the life of the project, a paver restraint is required to edge the pavers.

 

Permeable Pavement (20:29)

Permeable pavement is designed to allow rainwater to drain downward between interlocking concrete pavers, minimizing excessive stormwater runoff. Runoff mitigation and freshwater management are a significant environmental focus.

 

Asphalt Surface (25:02)

For decades, rough edges made asphalt a surface of last resort on projects. Broken edges and unsightly chemical maintenance of adjacent grass detracted from aesthetics.

 

Edging allies a clean, maintainable look that has brought asphalt back in line with long-term design goals for exterior surfacing.

 

Athletic/Sport Surface (27:45)

Rough, unprotected edges on rubberized sports surfaces can lead to unsightliness and premature breakdown of the surface.

 

Edging allows a clean maintainable edge for your sports surface. Weep hopes also allow water to exit the rubberized surface.

 

Green Roof (29:55)

A green roof is a roof of a building that is partially or completely covered with vegetation and soil, or a growing medium, planted over a waterproofing membrane.

 

Green roofs offer environmental benefits and can help buildings achieve LEED status.

33:55 – 42:44: Edging Materials

 

Aluminum (34:18)

 

Pros:

  • Durable
  • Lightweight
  • Flexible
Cons:

  • Price

 

 

Steel (35:07)

 

Pros:

  • Durable

Cons:

  • Heavy
  • Difficult
  • Rust
  • Price

 

 

Plastic (36:18)

 

Pros:

  • Lightweight
  • Price

Cons:

  • Temporary
  • Difficult

 

 

Wood (38:19)

 

Pros:

  • Natural

Cons:

  • Rot
  • Aesthetics

 

 

Concrete (38:55)

Pros:

  • Durable

Cons:

  • Price
  • Aesthetics
  • Machinery

 

 

Other (39:30)

Other solutions are available, including cutting a natural edge with no edging.

 

 

All edgings are not equal (40:12):

  • Edging manufacturers use “nominal” measurements, so be sure to check actual dimensions when comparing products.
  • Edgings have different features and accessories. Be sure when comparing that you take these factors into account.
  • Even within the same material (e.g., plastic), there can be different “recipes” that yield different results.

42:45 – end: How to Choose

  • Performance: Select an edging product with a durable material and features to make it last.
  • Aesthetics: Determine whether you want a visible/decorative or functional edging.
  • Availability: No sense in choosing an edging product that is not readily available.
  • Cost: How much are you willing to spend? Keep in mind the price vs. cost equation.
  • Installation: Look for an edging that’s easy install to save time and money on the product.

 

 

Question: Is there a reason for the surrounding material to extend more than halfway up permeable pavers? (46:20)

Answer: No, halfway up is adequate.

 

Question: What is the typical minimum radius for edging? (47:44)

Answer: The radius will vary dramatically depending on the preferences and needs of the project, as well as the materials used.

 

Question: Any wise words to prevent weardown and other damage? (50:22)

Answer: Proper installation is key.

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