DATA SHEET

Large Pedestals for use with porcelain tiles.

Method 1: Installing a porcelain paver patio

This method uses pedestals designed to hold paving slabs directly, without a subframe.

Preparation

1. Check balcony drainage: Ensure the existing balcony surface is clean and free of debris. Verify that the balcony's built-in slope for drainage is functional.
2. Calculate material needs: Measure the balcony's dimensions to determine the number of pavers and pedestals required. Pedestal placement is based on the paver size; for example, a 60x60 cm tile generally requires one pedestal at each corner.
3. Use a protective layer: Place rubber base mats under the pedestals to provide extra protection for the underlying roof membrane.

Installation

1. Set up the perimeter: Place pedestals around the perimeter and corners of the balcony, following your layout plan.
2. Lay the first pavers: Place the first four pavers on top of the pedestals. The pedestal heads have built-in separator tabs that automatically create uniform gaps for drainage.
3. Adjust the height: Use a spirit level to check the pavers for wobbles or unevenness. Twist the pedestal's collar to adjust the height until the surface is perfectly level.
4. Repeat and cut: Continue this process, laying rows of pavers and adjusting the pedestals as you go. For edges and other complex areas, you may need to cut pavers to size using a wet saw.

Method 2: Installing a composite or timber deck

This method involves building a supportive subframe on the pedestals before installing the decking boards.

Preparation

1. Assess drainage: Clear and clean the balcony surface. A deck system also needs good drainage, with the balcony's existing slope directing water away from the property.
2. Use protective mats: As with paving slabs, use rubber base mats under the pedestals to protect the balcony's surface.
3. Plan the layout: Calculate the number of pedestals needed based on the type of joists and decking material you are using. For example, composite decking may require closer joist spacing than timber. Plan for a double joist at butt joints where boards meet end-to-end.

Installation

1. Place pedestals: Position the pedestals in a grid pattern across the balcony according to your layout plan.
2. Lay the joist frame: Place the joists, such as aluminum or treated timber, on top of the pedestal heads, running perpendicular to the planned direction of the deck boards.
3. Level the subframe: Adjust the height of each pedestal using a spirit level until the entire subframe is level.
4. Secure the joists: Use screws to fasten the joists securely to the pedestal heads.
5. Install deck boards: Begin installing your decking boards onto the joist frame. Use screws or hidden clips, depending on your chosen deck board.

Key safety and technical considerations

• Building regulations: Especially for high-rise balconies, be aware of fire regulations. Standard plastic pedestals may not be compliant, and you may need to use Class A1-rated non-combustible pedestals and decking materials.
• Weight load: When planning, consider the weight of your chosen patio material and ensure your pedestals are rated to handle the load.
• Access: A pedestal system creates a void underneath, which is excellent for concealing pipes and providing access for maintenance. Ensure you can easily lift pavers or remove deck boards if access is needed.
• Waterproofing: Balconies must have proper waterproofing. Do not rely on the pedestal system for drainage. The underlying balcony surface must be waterproofed and have a functional slope.