Abstract: A tarpaulin with thermal insulation for a swimming pool, comprising a closed-cellularly foamed, elastic plastic foil with flotation features, wherein the top side thereof is lined with a porous material and the reverse side with an impenetrable, flexible surface structure having a relief-like surface.

Abstract: A thermal insulating and flotational interlining material comprising a tricot fabric flame laminated to a closed-pore cross-linked polyolefin foam provided with staggered slits so as to be extensible with the tricot. The slits may be about 1 to 10 mm long spaced longitudinally in rows by about an equal amount, rows being spaced about 1 to 5 mm from one another.

Abstract: A sound deadening system is provided, comprising a laminate of a covering stratum of closed-cell soft foam having a bulk density of less than about 50 kp/m.sup.3, and a core stratum having cavities and joined to the covering stratum at locations spaced from one another by a distance less than about 10 times the thickness of the covering stratum, the total area of the joinders between the covering stratum and the core stratum being less than about 2/3 of the covering stratum area. The core stratum may have a honeycomb structure, such as expanded sheet metal, a closed-cell soft foam possibly in granular form, etc. The laminate may include additionally an additional covering stratum on the other side of the core stratum or even multiple layers of alternating covering and core strata. A paper sheet may be provided on the last core stratum for cementing to a surface. Reinforcements can be provided embedded in or on the back of the core stratum, e.g. a metal sheet.