In at least one embodiment, a microporous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The microporous membrane may be used in building applications, including as or as part of a building wrap, a rain screen, a roofing underlayment, a flashing, a sound proofing material, or an insulation material. The microporous membrane may include at least one thermoplastic polymer, at least one filler, and at least one processing oil. The microporous membrane may be flat or may have ribs. The microporous membrane may include at least one scrim component. A method for forming the microporous membrane is also disclosed.

An ultra violet stable polyester membrane with a polyacrylic coating on one side and a coated pressure sensitive adhesive coating on its other side capable of allowing water vapor to pass through it. The pressure sensitive adhesive is formed of a copolymer comprising a backbone of n-butyl acrylate, 2-ethylhexyl acrylate, and vinyl acetate which is mixed with at least one surfactant and emulsified to produce air bubbles which form pores when the copolymer is set with about 80% to about 90% of the pore sizes ranging from about 200 microns to about 300 microns and being uniformly distributed to form a flow path through the pressure sensitive adhesive.

A drainage component having a continuous, extruded mat having an upper face and a lower face. The mat includes a plurality of patterned three-dimensional structures, each structure spaced from all adjacent structures, and the plurality of patterned three-dimensional structures are provided in a plurality of linear rows or columns in a first direction.

The invention relates to a floor underlayment comprising a first layer, a second layer, and an inner layer between the first layer and the second layer, wherein the inner layer has one layer of foam beads, and the floor underlayment has a thickness from 0.8 mm to 1.5 mm. The invention further relates to a method for manufacturing a floor underlayment, a flooring system and a use of a floor underlayment.

A universal barrier system includes universal barrier components that may be assembled together to shield floors and walls from moisture and provide a thermal break in an operational area of the universal barrier component. A lap zone of the universal barrier component may allow universal barrier components to be assembled and installed to protect floors, walls, ceilings, footings and the like from moisture and heat gain or loss by minimizing the need for tapes and other joining methods. The universal barrier system may also act as a sound deadening material. The operational area and lap zone of the universal barrier component may be disposed on a vapor block layer to provide some rigidity. The operational area of the universal barrier component may include a thermal break disposed upon the vapor block layer. The thermal break may include an outer protective layer. In addition, universal barrier tape and universal barrier edging may be provided to couple adjoining universal barrier components.

A water barrier system to protect a roof surface from environmental conditions is disclosed. In one embodiment, the water barrier system includes an underlayment layer and a liquid applied coating. In use, the underlayment is coupled to the roof surface. Thereafter, the liquid coating is applied to the underlayment to form a barrier layer. The underlayment may be manufactured from a porous material so that the liquid applied coating is at least partially absorbed by the porous underlayment. In this manner, direct application of the liquid coating to the roof surface is eliminated. In one embodiment, the underlayment may be provided with a load bearing component/layer and a coating absorbing component/layer. For flat roof applications, the load bearing component/layer may be provided with increased rigidity for dimensional and installation stability. Meanwhile, for roof penetration applications, the load bearing component/layer may be provided with increased elasticity to enable the underlayment to wrap about the penetration.

The present invention provides a panel sheathing for making wall and roof structures in which the panels (e.g., wood boards, oriented strand boards, plywood, etc.) are pre-coated at a factory, before installation at the building/construction site, using a polymeric barrier coating having specific water permeability, self-sealing properties with respect to penetrated metal fasteners (e.g., nails) in accordance with ASTM D7349 (modified using 1.5-5.0 inches water depth in hydrostatic head testing over sample of coated panel in which a steel nail is driven to within ⅛ inches of being flush with the panel and conditioning the test specimen for 24 hours at 23° C. prior to hydrostatic loading), as well as anti-blocking properties whereby the coated panels can be transported in stacked configuration without sticking or disintegration of the polymeric barrier coating. The coated panels do not require the use at the installation site of felt paper, house wrap, or additional applied barrier coating to provide excellent weather barrier properties. The present invention also provides methods for constructing the panel sheathing structure as well as for making the coated panels.

An apparatus for sealing a hole or a shape in a surface, which, in an exemplary embodiment, may take the form of a sheet of a soft material containing an interior hole, an exterior surface, a top lip, and an outer area. It may likewise be contemplated for the sealing apparatus to feature a bottom lip. Part of the apparatus may be roughened or have a rough surface attached thereto, which may be imprinted into the interior portion of the body and the exterior portion of the body and the top lip, or both. An adhesive pipe sealant may be used along the rough surface and bonded to the increased surface area of the roughened region.

The invention relates to a composite film (1), preferably intended for use in the construction industry and/or preferably for use as a construction film, having at least one functional layer (2), at least one outer protective layer (3) and at least one inner protective layer (4), the functional layer (2) being arranged between the outer protective layer (3) and the inner protective layer (4). According to the invention, it is provided that the functional layer (2) is formed as at least a single-layer membrane layer, that the outer protective layer (3) is formed as a nonwoven layer comprising polyolefin and the inner protective layer (4) is formed as a nonwoven layer comprising polyester.

A self-adhesive vapor-permeable membrane for use on a building, comprising a support that is permeable to air and water vapor, and a pressure-sensitive adhesive layer that is permeable to air and water vapor, and is secured to the underside of the support, wherein the membrane is noteworthy in that it comprises gas bubbles trapped between the support and the adhesive layer.