The present document relates to surface covering panel assembly for installation over a receiving surface and under a top layer. The surface covering panel assembly includes substantially identical surface covering panels. Each one of the surface covering panels includes a sheet member made of a first flexible material, the sheet member defining a first surface for interfacing with the top layer and a second surface, a padding layer panel made of a second flexible material, the padding layer panel defining a first surface for partially covering the second surface defined by the sheet member and a second surface for interfacing with the receiving surface, and an edge being adapted for releasable attachment to one of the at least other substantially identical surface covering panel.

A customizable playing field includes a turf system comprising a tile with a turf layer. The tile overlays a subfloor, defining a reservoir thereunder. A forced air system includes a pipe disposed within the reservoir and operatively coupled to a pump; and a sensor. A control system controls the pump, and includes a processor in data communication with at least one input/output device and computer memory. The computer memory has a program with machine readable instructions that, when effected by the processor, perform the following steps: if the temperature is above a predetermined threshold as measured by the sensor, forcing a cool fluid through the pipe; and if the temperature is below a predetermined threshold as measured by the sensor, forcing a warm fluid through the pipe.

This invention refers generically to pavement modules, more specifically to a pavement module that includes a resilient cushioning system to cushion the impacts caused by users in the interconnected modules that form the covering of a pavement. The system consists of a pavement module with an upper side and a resilient cushioning system that integrates a cushioning spike.

A flooring system includes at least two discrete layers. The at least two discrete layers include at least a first discrete layer comprising variably responsive elastic subfloor. The at least a first discrete layer includes at least first sublayer having area elastic properties and at least a second sublayer, wherein at least a portion of the at least a second sublayer includes a first material displaying dilatant properties. The at least two discrete layers include at least a second discrete layer comprising a wear layer disposed on top of the at least a first discrete layer.

One aspect of the invention provides an extruded, polymeric underlayment pad including: a substrate; a first plurality of at least four intersecting ridges extending perpendicularly from a first side of the substrate; and a second plurality of at least four intersecting ridges extending from a second side of the extruded polymeric substrate.

A support layer for supporting an artificial turf assembly. The support layer being formed of a polymeric foam, preferably having a density of between 20 and 70 grams per liter, such as a polyolefin foam; and having an upper side and a lower side, wherein in use the support layer has been placed with the lower side thereof on a base surface and supports, on the upper side thereof, the artificial turf assembly, the support layer including a plurality of through drainage holes extending from the upper side to the lower side for allowing liquid such as rain water to flow via the plurality of drainage holes from the upper side to the lower side, and also including a plurality of channels at the lower side for allowing liquid such as rain water to flow through the channels along the lower side, wherein each of said plurality of drainage holes debouches into one of the plurality of channels. The support layer is further included in an artificial turf system, that includes an artificial turf assembly with the support layer supported on a base surface such as a layer of sand, wherein the support layer forms, at the upper sides thereof, a closed support surface supporting the artificial turf assembly.

A system including a pavement module that includes a protective system against wear and tear of rigid support elements of interconnected modules that form a covering of a pavement, or impact absorbers that integrate or are coupled to the pavement modules. The system consists of a pavement module with an upper side and a wear-protective system consisting of a protective shoe.

There is provided a void forming module (100), the module including a support surface (110) including a first generally planar upper region (112), a second generally planar lower region (114), and a third generally convex region (116) joining the first region and the second region. At least one of the first region, the second region, and/or the third region includes at least one aperture (120,122) for the passage of fluid through the void forming module. There is also provided a structure (200) including the void forming module, a method of preparing a structure, and the use of the void forming module.

A ground covering comprising: a base panel including a sheet with an array of protrusions extending therefrom; a top panel including an array of receptacles for mating with at least a number of said protrusions; one or more drainage conduits formed through each of the protrusions, each drainage conduit being at least partially occluded by a baffle; and complementary engagement formations on peripheries of the protrusions and of the receptacles for fastening the top panel to the base panel.

A lightweight universal panel mat made of plastic or elastomeric material and having a first section that provides a relatively flat surface and provides a frame for receiving a plurality of removable panels that form a working surface within the panel mat. The panel mat includes a second section having geometry that supports the first section. The mats also include first, second, third and fourth sides forming a perimeter of the mat, wherein the first and second sides include upper structures having a sloped lower surface and the third and fourth sides include lower structures having sloped upper surfaces. The sloped surfaces are configured to allow for overlapping with sloped surfaces other like mats for interlocking therewith while forming a generally flat continuous top and bottom surface of the overlapped mats. The mats may be interlocked by a fastening member which fits in aligned openings of the adjacent mats for connection therewith.