Some embodiments of the present disclosure relate to a roofing system. In some embodiments, the roofing system includes a roofing membrane, which may include a cap, a scrim, and a core. In some embodiments, the roofing system may also include an adhesive film, which may include a first adhesive layer adhered to the roofing membrane, a second adhesive layer configured to adhere the roofing membrane to a roofing substrate, and a barrier layer positioned between the first and second adhesive layers. Methods of manufacturing roofing systems are also disclosed.

Disclosed are a composite gypsum board and a method of preparing composite gypsum board. The board contains a set gypsum core sandwiched between two cover sheets. The core is formed from a slurry containing stucco, water, and optional ingredients such as foaming agent, accelerator, retarder, polyphosphate, starch, and dispersant, and core intumescent material. The board also contains at least one skim coat and/or hard edges. A face skim coat layer can be included on one side of the core, facing a face cover sheet. A back skim coat layer can be included on the other side of the core, facing a back cover sheet. Hard edges are known in the art and can be formed, e.g., continuously from a stucco slurry for forming the face and/or back skim coats. Preferably, the back skim coat layer and/or the hard edges are formed from a slurry containing stucco, water, skim coat or edge intumescent material (which have the same desired characteristics), and other optional additives as desired. The skim coat or edge intumescent material can be composed of the same material as the core intumescent material, if desired, but the skim coat and/or edge intumescent material is present in a higher relative concentration in its respective slurry than the amount of core intumescent material in the core slurry. Examples of suitable intumescent materials include expandable vermiculite (e.g., No. 4 or No. 5 according to the US naming system, or combinations thereof), expandable graphite, perlite, or any combination thereof.

A structure includes a reinforcing member made up of reinforcing fibers that are impregnated with a resin. The reinforcing member includes a first region and a second region. The first region is formed by irradiating the reinforcing fibers with plasma. The second region is formed by irradiating the reinforcing fibers with a smaller amount of the plasma than the first region. The reinforcing member is provided such that the first region is positioned in a location where more strength is required than the second region.

This invention relates to improved high temperature resistant calcium sulphate-based products e.g. gypsum wallboard products and, in particular, to products having reduced shrinkage at high temperatures. The invention provides calcium sulphate-based product comprising gypsum and a shrinkage resistance additive. The shrinkage resistance additive is melamine polyphosphate or melamine pyrophosphate.

This invention relates to improved high temperature resistant calcium sulphate-based products e.g. gypsum wallboard products and, in particular, to products having reduced shrinkage at high temperatures. The invention provides calcium sulphate-based product comprising gypsum and a shrinkage resistance additive. The shrinkage resistance additive is melamine polyphosphate or melamine pyrophosphate.

A method of applying a protective film to a construction panel comprising: (a) selectively applying an adhesive composition to a peripheral region of a surface of the construction panel; and/or selectively applying an adhesive composition to a peripheral region of a surface of the protective film; and (b) applying a protective film to the surface of the construction panel to bond the protective film to the construction panel. A construction panel comprising a protective film layer on a surface of the panel and a peripheral adhesive composition layer located between said surface of the panel and the protective film layer, wherein the peripheral adhesive composition layer extends from an edge of the panel and across from about 0.1% to about 25% of the width of the surface.

A method of applying a protective film to a construction panel comprising: (a) selectively applying an adhesive composition to a peripheral region of a surface of the construction panel; and/or selectively applying an adhesive composition to a peripheral region of a surface of the protective film; and (b) applying a protective film to the surface of the construction panel to bond the protective film to the construction panel. A construction panel comprising a protective film layer on a surface of the panel and a peripheral adhesive composition layer located between said surface of the panel and the protective film layer, wherein the peripheral adhesive composition layer extends from an edge of the panel and across from about 0.1% to about 25% of the width of the surface.

A low-emittance material having improved energy efficiency protection against air infiltration and moisture build-up in buildings is disclosed. The aforementioned low-emittance material utilizes existing framing openings or without increasing the wall profile of a building. The present invention provides a low-emittance material which may be implemented on traditional 24 framing having R-15 mass insulation material within existing or newly constructed framing cavities. The material of the present invention also meets requirements for serving as a water resistive barrier as defined by ICC AC38.

A low-emittance material having improved energy efficiency protection against air infiltration and moisture build-up in buildings is disclosed. The aforementioned low-emittance material utilizes existing framing openings or without increasing the wall profile of a building. The present invention provides a low-emittance material which may be implemented on traditional 24 framing having R-15 mass insulation material within existing or newly constructed framing cavities. The material of the present invention also meets requirements for serving as a water resistive barrier as defined by ICC AC38.

The present disclosure relates to an engineered flooring product suitable for indoor or outdoor flooring applications, and a method of manufacturing thereof. The engineered flooring product comprises a core layer, the core layer comprising: (i) a hydrate compound comprising magnesium hydroxide and magnesium chloride; (ii) one or more hydrate compounds each comprising magnesium hydroxide and magnesium sulfate; and (iii) one or more stabilizing agents. The hydrate compounds are derived at least in part from magnesium oxide. The core layer has a composition that is free of PVC and other plastic-based materials and is selected to provide one or more desired physical properties such as, but not limited to, a desired degree of water resistance, durability, and thermal expansion and contraction. The core layer preferably has a composition that provides a thermal expansion coefficient equivalent to or comparable to concrete.