A breathable multilayer spun bonded polypropylene membrane having a coated pressure sensitive adhesive capable of allowing air and moisture vapor to pass through it. The adhesive is formed of a copolymer comprising a backbone of n-butyl acrylate, 2-ethylhexyl acrylate, and vinyl acetate which is mixed with a surfactant and emulsified to produce 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 a pore density in the cured pressure sensitive adhesive ranging from about 4200 per inch.sup.2 to about 4600 per inch.sup.2, said pores being uniformly distributed to form a flow path through adhesive.

An underlayment that meets underlayment requirements and provides thermal insulation is disclosed. The underlayment includes a core material and an upper emittance layer having an exterior surface. An upper reinforcement layer is positioned between the upper emittance layer and the core material. A first encapsulation layer is positioned between the upper emittance layer and the upper reinforcement layer. A second encapsulation layer is positioned between the upper reinforcement layer and the core material. The underlayment includes a lower emittance layer having an exterior surface. A lower reinforcement layer is positioned between the lower emittance layer and the core material. A third encapsulation layer is positioned between the lower emittance layer and the lower reinforcement layer. A fourth encapsulation layer is positioned between the lower reinforcement layer and the core material.

A composite laminate comprising at least one moisture vapor permeable nonwoven sheet having first and second surfaces and a fluorinated polymeric coating on the first surface of the sheet wherein (i) the fluorinated polymeric coating is present in an amount such that the total fluorine content of the coated non-woven sheet is 0.05 to no greater than 0.4 gsm, and (ii) the composite laminate, after exposure to wet timber, exhibits a retained hydrohead of at least 60 percent.

A multi-layer laminate exterior finishing system. The system is a composite having a non-woven film layer; a hydrophobic layer; and an adhesive layer.

A retrofit roofing system with a roof furring having a substantially flat top and L-shaped side with openings that correspond to the raised portions of the existing metal roof panels, at least two fasteners that penetrate the L-shaped side through the existing metal roof panels and into the at least one roof perlins, a layer of adhesive on the substantially flat top portion of the roof furring; and at least one new metal roof panel on top of the layer of adhesive. There is also a new roofing system having at least two roof perlins with a bottom portion attached to a roof deck by fasteners and a top portion, a layer of adhesive attached to the top portion of the at least two roof perlins and a metal roofing panel on top of the layer of adhesive attached to the top portion of the at least two roof perlins.

A thermoplastic polyurethane foamed article has a density ranging from 0.3 to 0.8 g/cm3 measured at 25 C. and is self sealable in accordance with Section 7.9 of ASTM D1970/D1970M-11. The thermoplastic polyurethane foamed article is formed by melting and foaming a thermoplastic polyurethane composition having a durometer hardness ranging from 30A to 75D in the presence of a blowing agent.

A roofing underlayment includes a hydrophobic nonwoven core layer that provides enhanced resistance to water infiltration. In addition to the hydrophobic nonwoven core layer, the roofing underlayment includes a coating layer adhered to a surface of the hydrophobic nonwoven core layer, and an exterior surface layer adhered to the coating layer. A roofing system that includes the roofing underlayment is also provided.

A roofing underlayment with enhanced walkability and/or traction is provided. The roofing underlayment includes a base layer, a first coating layer adhered to a first surface of the base layer, and a melt-blown nonwoven layer adhered to the first coating layer. The melt-blown nonwoven layer enhances walkability by providing a rough surface on which roofing installers may walk.

One subject of the present invention is a roofing device (1) comprising an area support (2) made up of panels of wood particles on which a vapor barrier first layer (3), an insulating second layer (4) and a third layer (5) that is impermeable to liquid water are laid. Said device (1) is one wherein the second layer (4) is a composite layer formed by the superposition of two distinct homogeneous elementary layers (6 and 6), namely a lower elementary layer (6) of wood fiber and an upper elementary layer (6) made up of a material that is at least partially bio-sourced, that has hygroscopic, antifungal and thermal-insulation properties and that has a low resistance to the diffusion of water vapor.

A roofing underlayment that resists water ingress around fasteners that are used to secure the underlayment to a substrate, such as a roof deck, is provided. The roofing underlayment includes a base layer, a coating layer applied to the base layer, and a water-swellable composition. An upper surface of the roofing underlayment may have a water contact angle of at least 120.