Separating membrane of plastic material, made up of a bossed and waterproof sheet which is coupled with a permeable base layer. The bosses are of the cylindrical type with a double diameter and have such a shape and arrangement as to feature improved adhesion on both faces. The gripping of the adhesive is increased in order to obtain greater tear strength, on the upper face, and at the same time increases the area of contact with the base layer for a greater resistance to delamination on the lower face. In particular, inside each chamber there is an internal crown, which divides it like a necking into two superimposed compartments having the same diameter, wherein the first compartment has a depth amounting to at least of the total. A production process for obtaining the membrane is also disclosed.

The present invention relates to a floor underlayment that may be positioned directly in contact with the underside surface of a finished floor and comprise more than one layer such as a first layer pattern-unbonded nonwoven web and a second layer microporous film. Additional layers may comprise a meltblown nonwoven layer and a spunbond layer. The floor underlayment of the present invention may exhibit a sound pressure level (SPL in dB at 800 Hz or 1600 Hz) reduction IIC of about 30 to about 40.

Separating membrane of plastic material, made up of a bossed and waterproof sheet which is coupled with a permeable base layer. The bosses are of the cylindrical type with a double diameter and have such a shape and arrangement as to feature improved adhesion on both faces. The gripping of the adhesive is increased in order to obtain greater tear strength, on the upper face, and at the same time increases the area of contact with the base layer for a greater resistance to delamination on the lower face. In particular, inside each chamber there is an internal crown, which divides it like a necking into two superimposed compartments having the same diameter, wherein the first compartment has a depth amounting to at least of the total. A production process for obtaining the membrane is also disclosed.

A method of installing a flooring structure is disclosed. The method includes providing an acoustic insulating layer over a sub-floor layer. The method also includes providing an underlayment layer over the acoustic insulating layer. The provided underlayment layer includes gypsum concrete having a water-resistant additive. Also disclosed is a flooring structure. The flooring structure includes an acoustic insulating layer over a sub-floor layer. The flooring structure also includes an underlayment layer having a first side and a second side opposite the first side. The underlayment layer includes gypsum concrete having a water-resistant additive. Additionally disclosed is a gypsum concrete flooring underlayment product. The product includes a mixture of alpha calcium sulfate hemihydrate and beta calcium sulfate hemihydrate. The product also includes a silane-based powder intermixed with the mixture of alpha calcium sulfate hemihydrate and beta calcium sulfate hemihydrate.

The invention relates to a decoupling sheet (1) having a carrier plate (2) and a plurality of nubs (4) protruding from the carrier plate plane (3). According to the invention, a plurality of protrusions (21a) and/or recesses (21b) is provided on the side of the nub base (10) of at least one nub (4) facing toward the nub interior space (20) and/or a plurality of protrusions (21c) and/or recesses (21d) is provided on the side of the carrier plate (2) facing toward the nub interior space (20), especially wherein the protrusion (21a) and/or the recess (21b) on the nub base (10) and/or the protrusion (21c) and/or the recess (21d) on the carrier plate (2) has a height and/or a depth greater than 1 m, preferably greater than 100 m, further preferably between 100 and 1000 m and especially at least substantially between 300 and 500 m.

Separating membrane (10) of plastic material, made up of a bossed and waterproof sheet (100) which is coupled with a permeable base layer (101); the bosses (102) are of the cylindrical type with a double diameter (D1, D2) and have such a shape and arrangement as to feature improved adhesion on both faces (110-111). The invention increases the gripping of the adhesive in order to obtain greater tear strength, on the upper face, and at the same time increases the area of contact with the base layer for a greater resistance to delamination on the lower face. In particular, inside each chamber (103) there is an internal crown (104), which divides it like a necking (D2) into two superimposed compartments (105-6) having the same diameter (D1), wherein the first compartment has a depth (H1) amounting to at least of the total (H). The invention also relates to the production process for obtaining said membrane (10).

An underlay mat (10) for floor coverings, includes a polyurethane layer (14), a self-adhesive film (20) on the topside of the polyurethane layer (14) and which includes a carrier film (12), a layer of adhesive (22) applied to carrier film (12), and a mesh structure (24) made of fibers which is embedded in the adhesive layer (22), and a removable protective film (26) on the topside of self-adhesive film (20).

The present disclosure provides a mortar bed gauge device, system, and method that create a predetermined mortar bed thickness. The mortar bed gauge device includes a web of extruded polymer monofilaments having indentations on a surface of the web. The mortar bed gauge system includes the web located between a substrate layer and a finish layer. The mortar bed gauge method includes supplying the web, laying the web onto the substrate layer, placing a mortar composition onto the web, and measuring the amount of composition being placed on the web by the thickness of the web.

The invention relates to a decoupling mat (1) with a continuous plastic layer (2), for example one fabricated via deep drawing, comprising elongated, rib-like formations (3) on a first broadside (B.sub.1), wherein the formations (3) simultaneously form groove-like recesses (5) on a second broadside (B.sub.2) lying opposite the first broadside (B.sub.1). In order to achieve a solution advantageous for use, emphasis is placed on having the formations (3) be bordered in their longitudinal extension (1) by sections (9) of a reduced height (h) and/or width (c), which simultaneously also form partial areas (10) of less depth (s) and/or width (d) bordered relative to the recesses (5). In addition, the invention relates to a floor structure, in particular in a building with a decoupling mat (1).

An uncoupling mat includes a flexible plastic layer (2) made of film-like plastic with structuring that defines indentations (6) provided with undercuts (5) on the first side (4) and cavities (8) positioned between the indentations (6) on the opposite second side (7). A fleece or fabric (3) is securely connected to the second side (7) and covers the cavities (8). A cross-section of the indentations (6) in at least some corner regions (10) increases towards the first side (4).