Pedestal InstallationGuidelines for installing adjustable height pedetals
Irrespective of the type of pavers or tiles that will be installed over pedestals, the following basic requirement must be met.
- Decks must be designed not to exceed the load capacity of the pedestals.
- The substrate under the pedestals should provide for positive drainage.
- For decks installed over roofing substrates, roof systems must comply with local building codes.
- Any area not bounded by a parapet or wall must be ‘boxed-in’ and fully contained so the tiles or pavers cannot move.
- Any movement at the perimeter of the deck should not exceed 1/8”.
- Elevated decks must comply with all relevant codes and regulations particularly relating to wind uplift and fire resistance.
Installing Porcelain or Concrete Pavers
The procedure for laying either porcelain, stone or pedestal supported concrete pavers is essentially the same.
- Measure the total area to be paved to determine the number of pavers required.
- Use sight or laser lines to mark the intersections of the corners of each paver to be laid.
- Position the first pedestal in one corner of the area.
- Place subsequent pedestals along one wall edge, spaced according to the width of the pavers to be used.
- Cut the bases of the pedestals along the scored lines to ensure the pedestals are as close as possible to the wall.
- Snap off any tabs that are not required.
- Install shim quadrants between the pavers and the head if pavers vary in thickness, to ensure each paver is level on the head.
- Place a second row of pedestals parallel to the first and separated from the first row by the width of the pavers.
- Carefully position the pavers with each corner resting on the top of a pedestal head and tightly butted against the tabs.
- Screw the head component up or down with the height adjustment tool to ensure each paver is level.
- Make sure to check the deck surface for level as each row of pavers is laid.
- Where extra support is required, place an additional pedestal with all tabs removed under the paver.
See the video below for the step by step procedure in laying porcelain pavers on Eterno adjustable height pedestals.
The video shows the base of the pedestals installed directed against the perimeter wall being cut. This is typically only required where the pedestal heads need to be as close to the wall as possible e.g.:
a. when the pedestals are supporting a narrow section of cut paver (less than approx. 12″ wide)
b. where a cant strip installed at the foot of the perimeter wall which restricts the pedestals being placed directly against the wall.
It is essential to leave a small gap (1/8″) between the wall and the edge of the pavers. We recommend the spring loaded stainless steel Eterno perimeter clips as shown in the video which are specifically designed to maintain a consistent gap around the perimeter and allow for slight expansion and contraction of the pavers.
Installing Structural Wood Tiles
Our structural wood tiles are produced with a slot in each corner to accept a special fixing device. This integrated screw and washer assembly secures the wood tiles to the Eterno pedestals without penetrating or damaging the wood.
Firstly place the pedestal under two adjacent pavers and level the pavers using the adjustment tool.
Move the pedestal slightly towards you and insert the fastening screw into the hole in the center of the pedestal head.
Screw it down using a Pozidriv #2 bit (not a Philips bit) until the washer is level with slot cut in the tiles.
Push the pedestal back towards the tiles so the tabs on the head butt firmly against the tiles and the washer engages the slots.
Install the other two tiles on the pedestal, then tighten the screw with a screwdriver to secure the corners of all four tiles.
Note that although the height adjustment tool cannot be used to adjust the height of the pedestal after the screw has been inserted, you can still adjust the pedestal height if required by turning the pedestal base.