AWS Pedestals
Q: What are pedestals?
Q: How do I figure out how many I need?
Q: Do you have examples?
AWS Pedestal System
Q: What are pedestal systems and why would you use them?
A: The AWS pedestal systems are designed for architectural concrete slabs to lay over a built up roof. The substrate can be either a concrete or wood structure, with a roof membrane over the top.
The AWS pedestal system consists of 7 pieces:
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- Top Cap
- Bottom cap
- Top Shims of 1/16″ and 1/8″
- Round Bottom Shims of 1/8″
- Buffer Pad (optional)
- Joist Plate (used for less than 1″ height)
- Standard 4″ PVC piping between caps
This system allows for varying heights up to 20+ inches. There is a standard 1/8″ vertical spacer on the top cap, allowing for open joints and proper alignment.
The top cap is 1/2″ in height, and if needed, top or bottom shims lock into place, to get the height just right. If using a joist plate, you will find its height to be 1/8″, with 1/8″ spacers.
The bottom shims can be broken in half and stacked for areas that are sloped more than the typical 2%.
Q: How do I calculate the quantity I need?
A: That’s easy! Just use our web calculation page!
Calculation Page for AWS Pedestals
Q: I’m still a little fuzzy on what to do with these things. Do you have examples I can see?
A: Here are two videos presenting the Pedestal System or Joist Plates.
Installation of AWS Pedestal System
Installation of AWS Joist Plate System