Abstract: A flooring underlayment comprises a membrane that includes a body panel having a panel top surface and a panel underside surface spaced apart from the panel top surface by a panel thickness. The membrane further includes a plurality of dimples projecting downward from the panel underside surface, each dimple having a dimple upper end open to the panel top surface, a closed dimple lower end spaced apart from the dimple upper end by a dimple height, and a dimple sidewall extending between the dimple upper end and the dimple lower end, the dimple sidewall configured to inhibit collapse of the dimple height when a load is applied to the flooring underlayment during use. The membrane includes a plurality of grooves open to the panel top surface and formed within a groove body projecting downward from the panel underside surface, each groove shaped to receive an elongated heating element therein.

Abstract: A foam board article for installation against a base surface comprises a rigid foam layer including (a) a panel having an underside surface and a topside surface opposite the underside surface; and (b) a plurality of underside protrusions projecting from the underside surface for supporting the panel in spaced apart relation from the base surface to provide an air gap therebetween.

Abstract: A membrane for installation circumferentially about a pipe includes: (a) a substrate including: (i) a panel having an underside surface on an underside of the substrate for facing the pipe and a topside surface on a topside of the substrate opposite the underside, (ii) a plurality of underside protrusions projecting form the underside surface for supporting the panel radially apart from the pipe; and (iii) a plurality of topside protrusions projecting from the topside surface. The membrane further includes (b) a foam layer extending over the topside of the substrate; and (c) a heat-reflecting layer extending over the foam layer.

Abstract: An underlayment for installation between a base surface and a flooring material includes (a) a structural membrane formed of a structural material and including a panel and a plurality of dimples projecting from an underside surface of the panel. Each dimple has a dimple tip spaced apart from the underside surface. The underlayment further includes (b) a plurality of discrete dimple endcaps comprising a resilient material. Each endcap is fixed relative to, and covers at least a portion of, the dimple tip of a respective dimple. The endcaps support the dimples above the base surface when the underlayment is installed.

Abstract: An underlayment for a floor includes a dimpled substrate having a generally planar top side, an opposed bottom side, and a plurality of dimples formed therein. Each dimple is bounded by a dimple wall, and includes a dimple opening along the top side. A smoothing layer is bonded beneficial to the top side of the dimpled substrate and overlays and occludes the dimple openings.

Abstract: An underlayment for a floor includes a dimpled substrate having a generally planar top side, an opposed bottom side, and a plurality of dimples formed therein. Each dimple is bounded by a dimple wall, and includes a dimple opening along the top side. A smoothing layer is bonded to the top side of the dimpled substrate and overlays and occludes the dimple openings.