These Universal Extra pedestals by Wallbarn give installers greater flexibility when working across surfaces with very large differences in deck level as the height range is far greater across just three products: 85mm-135mm, 125mm-215mm and 210mm-380mm. This is due to each Extra pedestal coming complete with an extension shank which clicks into the baseplate. The threaded stem is then placed into the top of it. Typically, installers cannot always be sure how much the fall will be on the roof or where it will be, these pedestals have heights marked out every 10mm on the sides of the stems. This saves time, not having to frequently remeasure as you can see the height at a glance. Wallbarn’s Universal Extra pedestals are a freestanding system that create a cavity between the decking/paving surface and sub-deck, this allows obstacles such as pipes and cables to be concealed and out of the way and keeps it ventilated. This means that no fixings are made through the membrane underneath, this is ideal for warm roofs and inverted waterproofing systems. They also come with an integrated acoustic shim on the headpiece. Even flat roofs are built to a small fall to allow adequate drainage. Their adjustable pedestals have a telescopic stem which allow you to make millimetre-precise manual adjustments in height in order to achieve a flat upper surface. Wallbarn’s Universal Extra adjustable pedestal range is suitable for both paving and decking. They are particularly ideal for porcelain tiles on flat roofs and podiums. Paving applications Positioning lugs create uniform spacing between each slab, allowing rainwater to run between and under the slabs, so no standing water is left on the surface Being a suspended system, the weight of the slab holds everything in place Height adjustments can be made whilst the slab is in place, saving time and labour 10mm high lugs mean they are ideal for supporting thin tiles Lugs can be snapped by hand for stretcher bond and irregular laying patterns Laying decking Adjusting the height of the pedestals, rather than cutting furring’s means installers can install decking onto structural decks much more quickly Pedestals are adjusted to accommodate the fall in the roof deck Placed a maximum of 600mm apart, the joist bearers are simply slotted between the joist holders A joist framework is constructed to create a sturdy, stable, weight-bearing surface to take the upper surfacing The top decking is then fixed onto the joists using ordinary wood screws or hidden fixings Height adjustments can be made whilst the timber joist framework is in place, saving time and labour Raising the decking off the sub-deck allows water to drain freely under the decking so there is no standing water left on the surface, preventing ponding and associated slip hazards, and extending the lifespan of the timber. Joists are not standing directly on the waterproofing membrane, or insulation, preventing damage to it. Product Specification Material: Virgin fibre injection moulded polypropylene Weight Tolerance: Maximum Load 11,493 N 1,171kg End of Linear Behaviour: 6,700N 683kg Compressive Strength: 20°C and - 40°C Max Temperature: 75° C Min Temperature: -40°C Base Plate Diameter: 200mm Height: 210mm to 380mm Headpiece Diameter: 120mm Lug Dimensions: 10mm x 2mm (4mm available upon request) Distance between lugs: 55mm