What Are Pedestal Roof Deck Systems and Their Advantages?

A pedestal roof deck system is a support system that consists of a series of raised platforms or pedestals that are used to support a variety of different types of materials. This type of system offers a number of benefits over traditional support methods, including improved drainage and increased flexibility. Let's take a closer look at pedestal roof deck systems, as well as their benefits.

What Are Pedestal Roof Deck Systems?

A pedestal roof deck system is a mobile, freestanding deck that is supported by adjustable height supports, or pedestals. This type of system is ideal for elevated applications where a traditional deck ledger board cannot be used. Ledger boards are horizontal beams that are attached to the house or building to provide support for the joists. Without a ledger board, the joists of a traditional deck would have nowhere to be attached, and as a result, the deck would collapse. 

Pedestal roof deck systems overcome this problem by using pedestals to support the joists instead of ledger boards. Pedestals have the added benefit of creating an open space beneath the deck which can be used for storage, HVAC units, or even another outdoor living space such as a patio. 

The Benefits of a Pedestal Roof Deck System

A pedestal roof deck system is a support system that consists of a series of slender, raised platforms or pedestals that are used to support a variety of different types of materials. This type of system offers a number of benefits over traditional support methods, including improved drainage, reduced weight, and the ability to create a very level deck surface. Let's take a closer look at each of these benefits in detail.

1. Easy Installation Pedestal systems are very easy to install. The substructure consists of multiple independent support columns or “pedestals”. This design makes installation quick and easy because there is no need for welding, drilling, or pouring concrete footings. All you need is a power drill and various screw sizes to put it all together. Depending on the size of the project, a pedestal roof deck system can be installed in as little as one day.
2. Durability
   A well-built pedestal roof deck system is extremely durable and can last for decades with proper maintenance. The materials used in the construction of pedestals are typically high density polyethylene (HDPE), fiberglass reinforced polymers (FRP), or recycled HDPE composites. These materials are known for their strength, stability, and resistance to weathering and rot. 
3. Versatility
   Pedestal systems are very versatile and can be used on a variety of different roof surfaces including single ply membrane roofs, built-up roofs, modified bitumen roofs, etc. They can also be used on uneven or sloped roof surfaces. 
4. Drainage
   Pedestal roof deck systems offer excellent drainage capabilities due to their design. The gaps between each pedestal allow water to runoff quickly and easily preventing pooling or ponding on the roof surface which could lead to leaks.  
5. Cost-Effective 
   The investment in a well-designed pedestal system pays off due to easier installation how well it supports the overlying deck materials over time.