Ballards Services in Seattle, WA
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A bollard is a small post used installed & arranged to create a protective or architectural perimeter. When installed primarily as a visual guide, bollards guide traffic and mark boundaries. They come in a wide range of shapes and styles to accentuate or visually stand out in their settings. Bollards can also be made to physically block vehicle incursion, protecting pedestrians and property. These security bollards may have decorative elements, or be chosen to complement the landscape, but their main purpose is resistance to collisions & impacts. Bollards can be made from almost any material, depending on their needed function, but the most common bollards are metal, stone, cement, or plastic.
What kind of cement mix is used for extruded curbing? How is this different from other cements?
Extruded curbing is placed using a unique mix which is drier than other concrete mixes. It will cure faster and the finishing process can be completed sooner.
How is extruded curb placed?
Extruded curbing is placed using a curbing machine and then finished by hand.
How much does it cost?
Factor that affect the cost of an extruded curbing job are: (1) Amount of removal/excavation to complete (2) Total lineal feet to place (3) Total number of locations and (4) Mold/uniqueness of the mold/shape.
Does curbing require a sub-base?
Yes, extruded curbing should be placed on a solid base, either asphalt or concrete. It should not be placed directly on top of dirt.
What should be done about root damage?
If roots are causing the curb to bulge upward, it is necessary to remove the curb, sub-base and the roots. Extruded curbing should not be replaced without removing the roots.