Abstract: A shingle coating asphalt composition is provided that is produced from a paving grade asphalt. The asphalt composition comprises a paving-grade asphalt that has been modified with one or more polymer additives; and a secondary additive comprising one or more of a viscosity reducing agent, a wax, a salt of a fatty acid ester, and an amide of a fatty acid. The shingle coating asphalt coating composition is used to make a shingle. The shingle includes a substrate, the asphalt, and roofing granules.

Abstract: Part retention features are disclosed for securing additively manufactured (AM) parts or for securing an AM part with another component, such as a node, panel, tube, extrusion, and the like, while an adhesive is being applied and/or while the adhesive is undergoing expansion due to a subsequent curing process. The retention features described herein can be used in the context of one or more AM parts such that the elements used to house the retention features (e.g., grooves, apertures, elastic elements, etc.) can advantageously be co-printed with the AM part, thereby removing a manufacturing step. The retention features also can be made with flatter profiles than existing solutions, making the overall structure smaller and less cumbersome to assemble.

Abstract: Disclosed are a method and equipment for reinforcing a concrete-filled steel tubular column with an outer concrete-filled steel tube. The method includes following steps: step 1, grinding and derusting an outer wall of a concrete-filled steel tubular column to be reinforced by an auxiliary device; step 2, welding two prefabricated semi-rectangular steel plates in advance, forming a complete rectangular steel tube with the two semi-rectangular steel plates and sleeving the rectangular steel tube outside the concrete-filled steel tubular column to be reinforced; and step 3, filling self-compacting concrete between the outer wall of the concrete-filled steel tubular column to be reinforced and an inner wall of the rectangular steel tube to complete a reinforcement.

Abstract: A thermally enhanced extrudate includes a channel, a first wall, and a second wall. The channel extends along a longitudinal axis from a first end to a second end of the thermally enhanced extrudate and is shaped to receive glass or a frame. The second wall is spaced from the first wall. The first wall and the second wall partially enclose a thermal break extending along the longitudinal axis. The thermal break has a first width defined between the first wall and the second wall at an upper end of the thermal break and a second width defined between the first wall and the second wall at a lower end of the thermal break. The thermally enhanced extrudate further includes a solid insulation material in the thermal break between the first and second walls and formed by curing a flowable material.

Abstract: A system and method of applying a slick surface, such as silicone epoxy, is applied on a vertical wall (on or around the perimeter of a structure), as a means of preventing (bark) scorpions (or other insects/arachnids) from climbing up walls. The system is intended, in part, to keep the Arizona bark scorpions out of homes. Vertical surface areas around the home are treated with a material such as silicone. A clear silicone epoxy, that when dry, prevents scorpions from climbing vertically up into a home or structure. This non-toxic epoxy is applied to the base of a home, including door thresholds, steps or other parts of a home which makes contact with the ground. The epoxy is applied to the area by sprayer.

Abstract: Concrete is formed by providing a wet layer of a first concrete 4, applying a second wet layer 6 of concrete on the first layer 4 of wet concrete and setting the layers 4 and 6 to provide a composite concrete structure, wherein at least one of the layers comprises, AACM (Alkali-Activated Cementitious Material). An ionic bond 2 is formed between the two layers. The AACM layer may comprise a reinforcement structure and cathodic protection.

Abstract: Polyurethane composites and methods of preparing polyurethane composites are described herein. The polyurethane composite can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) fly ash comprising 50% or greater by weight, fly ash particles having a particle size of from 0.2 micron to 100 microns; and (c) a coarse filler material comprising 80% or greater by weight, filler particles having a particle size of from greater than 250 microns to 10 mm. The coarse filler material can be present in the composite in an amount of from 1% to 40% by weight, based on the total weight of the composite. The weight ratio of the fly ash to the coarse filler material can be from 9:1 to 200:1.

Abstract: A flooring material having a textile pad substructure with a density of greater than 10 pounds per cubic foot is provided. The textile pad has reinforcement and binding fibers. The binding fibers are thermoplastic and are used to bind the reinforcement fibers together. The pad is created by heating and compressing a fibrous textile batt so that it has a density of greater than 13 pounds per cubic foot.

Abstract: A flooring material having a textile pad substructure with a density of greater than 10 pounds per cubic foot is provided. The textile pad has reinforcement and binding fibers. The binding fibers are thermoplastic and are used to bind the reinforcement fibers together. The pad is created by heating and compressing a fibrous textile batt so that it has a density of greater than 13 pounds per cubic foot.

Abstract: A flooring material having a textile pad substructure with a density of greater than 10 pounds per cubic foot is provided. The textile pad has reinforcement and binding fibers. The binding fibers are thermoplastic and are used to bind the reinforcement fibers together. The pad is created by heating and compressing a fibrous textile batt so that it has a density of greater than 13 pounds per cubic foot.

Abstract: A facade is formed on an upright supporting surface using a plurality of facade elements formed of plastic material having a flat rear side and a decorative front side protruding from the rear side. The flat rear side of the elements can be abutted directly against the upright supporting surface with the elements in spaced relation with one another and secured thereon using nails from an air driven nailer. Grouting in the form of mortar repair or caulking can be used to fill the gaps between adjacent elements on the supporting surface to complete the appearance of a natural stone facade on a building wall.

Abstract: The invention provides an aqueously-swellable water stop having an elongate body formed by shaping or extruding a composition mixture comprising water swelling fillers and/or polymers (e.g. Bentonite, super absorbent polymers, hydrophilic polymers), at least one elastomer or polymer, and preferably at least one plasticizer, the composition mixture when formed into an elongate water stop body having a Shore A hardness (durometer) of less than 35 and more preferably in the range of 5-35 (measured at 21° C.). The water stop body has at least one major face and a layer of pressure-sensitive adhesive attached to the face for bonding to a concrete substrate.

Abstract: The invention relates to a method for producing a drywall. In the method, a panel made of a plurality of panelling boards (3) placed alongside one another is fixed to a frame structure (1). According to the invention, fixation elements (5) are first affixed to a substructure (2) in the edge area of a panelling board (3) and/or in the joint area (4) of two adjacent panelling boards (3). Then, by means of a clamping tool (7) for example, fastening elements (6) are set alongside the fixation elements (5), the respective panelling board (3) being simultaneously clamped between the substructure (2) and the fastening element (6).

Abstract: Ceramic floors and methods of making thereof such that the ceramic tiles are quickly and easily removable from the floor substrate and replaceable at a future date. A ceramic tile floor is laid by releasably adhering a sheet to a floor substrate and bonding at least one ceramic tile to the sheet. A plurality of pre-fabricated articles each comprising a sheet and one or more ceramic tiles bonded to the sheet are laid onto the floor substrate with sheet edges abutting, and the sheets are releasably adhered to the floor substrate. The tile edges are set inwardly from the sheet edges so that a tile of one article is spaced from a tile of another article when the articles are laid. A non-Portland cement grout, preferably urethane grout, is provided between adjacent tiles.

Abstract: A floor panel and a floating floor system include a top surface and a bottom surface. The top surface has a visible decorative pattern and the bottom surface has a recess which extends about the periphery of the bottom surface. The recess has a recess surface. The floor panel includes a joining member with a top surface and a bottom surface. The top surface of the joining member is adhered to the recess surface of the recess. The bottom surface of the joining member and the bottom surface of the floor panel are essentially flush which each other. The use of the joining member does not create any imprints on the top surface of the floor panel.

Abstract: A flooring material having a textile pad substructure with a density of greater than 10 pounds per cubic foot is provided. The textile pad has reinforcement and binding fibers. The binding fibers are thermoplastic and are used to bind the reinforcement fibers together. The pad is created by heating and compressing a fibrous textile batt so that it has a density of greater than 13 pounds per cubic foot.

Abstract: Disclosed is an exterior finish system for building structures that includes a water pervious adhesive for securing an insulation layer to a water resistive barrier applied to a building wall substrate. Also disclosed is a building structure such as a building column or wall that includes the finish system and a method of using the finish system to assemble a building structure such as a column or wall.

Abstract: Disclosed is an exterior finish system for building structures that includes a water pervious adhesive for securing an insulation layer to a water resistive barrier applied to a building wall substrate. Also disclosed is a building structure such as a building column or wall that includes the finish system and a method of using the finish system to assemble a building structure such as a column or wall.

Abstract: The present relates to a metal profile having a thermal break for making doors. The metal profile comprises two complementary metal structural members. The two complementary metal structural members define at least one junction area there between, where each junction area defines a channel between the two complementary metal structural members. The metal profile further comprises a structural adhesive material for filling each of the channel. The structural adhesive material simultaneously forms a mechanical joint and a thermal break between the two complementary metal structural members. The structural adhesive material has a low thermal conductivity, a high percentage of elongation, and maintains a high rigidity of the metal profile. In an embodiment, the two structural members are made of aluminum.

Abstract: The invention concerns a panel of a flooring system, in particular a laminate floor, with a first side edge, and with a second side edge which is arranged opposite the first edge, wherein the side edges can be locked with corresponding side edges of further panels, wherein the side edges can be brought into engagement with each other, wherein the first side edge is fitted with at least one locking lip, and with an elasticity groove adjacent to the locking lip, wherein the second side edge is fitted with a locking element and wherein the locking element in the locked state is in engagement with the locking lip. To be able to set the elasticity of the locking lip more satisfactorily, it is provided that the elasticity groove is at least partly filled with at least one filling compound.

Abstract: Disclosed is an exterior finish system for building structures that includes a water pervious adhesive for securing an insulation layer to a water resistive barrier applied to a building wall substrate. Also disclosed is a building structure such as a building column or wall that includes the finish system and a method of using the finish system to assemble a building structure such as column or wall.

Abstract: A belt molding for an automotive door panel includes a molding body made of a hard resin and having an outer wall and an inner wall; a design tape fusion-bonded to an outer surface of the outer wall; and a lip made of a soft resin and standing from the vicinity of an edge portion of the outer wall. The outer surface of the outer wall to which the design tape is fusion-bonded is convexly curved in a direction orthogonal to the longitudinal direction. An edge portion of the design tape is covered with a root portion of the lip. A largest curvature portion of the outer wall is located immediately under a covered portion of the design tape.

Abstract: Building panels and a method to produce such panels including a solid decorative surface having a decorative wear layer including fibers, binders, color substance and wear resistant particles. A method of manufacturing a building panel having a decorative surface connected to a core wherein the surface has at least two homogenous layers, a lower sub layer and an upper decorative layer, the upper decorative layer including fibers, a first color substance a binder and wear resistant particles, the lower sub layer including fibers, a second color substance, and a binder, whereby the method including the steps of applying the layers comprising a mix of fibers, binder, wear resistant particles and color substance on a core wherein the layers comprise different colors, displacing particles from their original position such that particles from the sub layer are visible on the decorative surface, and curing the layers by providing heat and pressure.

Abstract: A composite building panel that includes a central body, substantially parallelepipedic in shape, containing an expanded polymer matrix, having opposite faces, a top surface, and a bottom surface; at least one embedded framing stud longitudinally extending across the central body between the opposite faces, having a first end embedded in the expanded polymer matrix, a second end extending away from the bottom surface of the central body, and one or more expansion holes in the embedded studs between the first end of the embedded stud and bottom surface through which the polymer matrix expands. A concrete layer can optionally cover a portion of the top surface and/or bottom surface. The building panel can be positioned perpendicular to a structural wall and/or foundation to provide a floor panel. The second end of the framing studs can be embedded in a second central body to provide an insulated concrete form.

Abstract: A composite building panel including a central body, substantially parallelepipedic in shape, comprised of an expanded polymer matrix, having opposite faces, a first surface and an opposing second surface; and one or more reinforcing members longitudinally extending across the central body between said opposite faces, having a first side portion embedded in the expanded polymer matrix, and a second side portion extending away from the first surface of the central body and one or more expansion holes located in the reinforcing member between the first side portion of the reinforcing member and the first surface of the central body. The central body includes a polymer matrix that expands through the expansion holes; and a space defined by the first surface of the central body and the second side portion of the reinforcing members is adapted for accommodating utilities through the space.

Abstract: A structural isothermal construction SIP panel comprising a board made of insulating material with two cement-based boards attached to said board made of insulating material per each one of its faces. The insulating board has in each of its sides a “C” type galvanized metal profile, that is embedded in the insulating board and the cement-based boards are attached to the insulating board and are placed overlapped opposite to each other with respect to their longitudinal axis, the overlapped bonding of the cement-based boards with the insulating board creates a protruding area which has a width equal to the width of the galvanized metal profile the bonding between two panels is made using screws. Two manufacturing methods and a bonding method are also provided.

Abstract: An article for applying to a floor substrate for preparing the floor substrate for laying of ceramic tiles by bonding ceramic tiles to the article. The article comprises a tile backer board for application to a floor substrate and a sheet bonded to the backer board for bonding of ceramic tiles to the sheet. The sheet comprises a plurality of layers bonded together wherein separation of the sheet along layers thereof is effected for removal of laid ceramic tiles from the backer board. Alternatively, the sheet is bonded to a floor substrate, and the ceramic tiles are bonded thereto. Alternatively, the article is a tape with releasable adhesive thereon. The adhesive releasably adheres to the floor substrate, and the ceramic tiles are bonded to the tape. Alternatively, the article comprises sheets which lie on the floor substrate and which float on the floor substrate and to which are bonded the ceramic tiles.

Abstract: An imitation wood plank comprises an elongate planar member having a top surface, a bottom surface and opposing sides. The top surface includes a wood grain pattern. The bottom surface includes a central portion and side margins disposed on opposing sides of the central portion. An adhesive material for adhering the elongate member to a sub-floor is applied to the central portion and extends substantially the entire length of the elongate member. The side margins are free of adhesive and provide a pathway for moisture to migrate from the sub-floor through gaps between adjacent imitation wood planks.

Abstract: An article for applying to a floor substrate for preparing the floor substrate for laying of ceramic tiles by bonding ceramic tiles to the article. The article comprises a backer board having a lower surface for application to a floor substrate and an upper surface, a sheet, and a releasable adhesive bonding the sheet to the upper surface of the backer board. The sheet covers the entirety of the upper surface of the backer board. After the article is applied to the floor substrate, ceramic tiles are then bonded to the sheet. For replacement of the ceramic floor, the releasable adhesive allows the sheet with the ceramic tiles attached to be easily removable from the backer board. A method for laying ceramic tiles comprising laying at least one sheet on a floor substrate so that it floats on the floor substrate, and bonding a plurality of ceramic tiles to the at least one sheet.

Abstract: A building panel structure is disclosed, in which building panels are used to form a structure. Roof panels and roof panel tiles are used to form the roof of the structure. The roof panel includes a core and a coating covering a portion of the core. In some embodiments the core consists of a frame and at least one insulating structural block. The insulating structural blocks can be encapsulated polystyrene (EPS) foam blocks. In some embodiments the coating includes ceramic material. In some embodiments the coating includes a first layer and a second layer. In some embodiments the coating materials are formed into a roof tile before they are coupled to the roof panel core. The roof panel and the roof tile can be shaped, formed, and colored to look like traditional roof tiles such as shake roof tiles or Spanish roof tiles.

Abstract: A fortified flashing laminate including a polymeric layer having an uncured portion and a cured portion forming a fortified area. The fortified area strengthens the flashing laminate at an area of known vulnerability or increased stress to prevent damage to the flashing laminate during installation and prior to curing of the remainder of the polymeric layer. The fortified flashing laminate may also include a layer of adhesive tape covering at least a portion of the bottom surface of the polymeric layer.

Abstract: Floor panel, which on the bottom side is provided with a factory-applied glue which substantially consists of synthetic rubber. The invention also relates to a method for manufacturing such floor panels, wherein the glue is applied by means of a roller device.

Abstract: The tile installation system provides a system for installing an architectural covering material to a substrate surface utilizing a plurality of release sheets where each release sheet has a top side surface and a bottom side surface. A plurality of discrete adhesive substrate portions are positioned on the top side surface of the release sheet, wherein the top side surface of the release sheet has a stronger bonding affinity with the plurality of adhesive substrate portions than the bottom side surface.

Abstract: The installation system and method for installing an architectural covering material to a substrate surface utilizes an adhesive mat having layers of adhesive and release layers arranged to allow the covering material to be initially positioned, and later repositioned to be permanently set. The adhesive mat includes a planar carrier member, one or more adhesive layers on at least one planar side of the planar carrier member, and at least one release layer of material removably covering the one or more adhesive layers. In one form, the adhesive mat includes a carrier sheet, first and second adhesive layers on opposing planar sides of the carrier sheet, and first and second release layers of material removably covering the two adhesive layers.

Abstract: A composite structural element and a method for making same are provided. The element includes a polymer foam core and at least one fibrous layer adhered to the polymer foam core by epoxy. Nano-particles are suspended in the epoxy prior to curing; preferably they are mixed with the hardener before it is mixed with the resin. The polymer foam core is preferably an exothermic foam such as polyurethane, and heat generated by the exothermic foam cures the epoxy, thereby causing the fibrous layer to adhere to the foam core. The nano-particles may be made from at least one of carbon, a ceramic, tungsten, a carbide, titanium, zircon, aluminum, silver, or boron. When carbon nano-particles are used, the strength of the composite is greatly increased, and the curing time of the heat-curable epoxy is significantly reduced. Ceramic nano-particles can be used to increase penetration resistance and provide increased ballistic protection.

Abstract: An external insulation wall having grid-reinforced insulation board anchored with mechanical devices includes: a base course wall (1), wherein a leveling and bonding layer (2), grid-reinforced insulation boards (3), plastic expansion anchor bolts (4), a thin plaster protecting layer (5), and a finishing layer (6) are provided on the base course wall (1) from inside to outside in turn. Holes are drilled on the grid-reinforced insulation boards (3), and the grid-reinforced insulation boards (3) are directly fixed on the base course wall with the plastic expansion anchor bolts (4), in such a manner that all load of an external insulation system is born by the plastic expansion anchor bolts (4), and the plastic expansion anchor bolts (4) transmits the load to the base course wall (1). The external insulation wall can solve technical problems of low bearing capacity and difficult surface treatment caused by an old base course wall.

Abstract: A surface material is provided for furniture and building structures. The surface material comprises a layer of artificial stone and a layer of fiber reinforced resin. The surface material may further comprise a separator material, for example, a metal strip, a fiber strip, etc. that defines partially or wholly a boundary edge of the layer of artificial stone. The layer of fiber reinforced resin partially or fully encompasses the artificial stone and/or the separator material on all sides and surfaces except exposed decorative surfaces. The surface material may further comprise a decorative material comprising, for example, ornamental glass, semiprecious stones, metal art, colored quartz, glass, stone jewelry, etc. embedded within the layer of artificial stone. The surface material is used to cover a central core for forming the furniture and the building structures.

Abstract: A culm block and a method of manufacture are disclosed. The culm block comprises a plurality of straw stalks forming a first rigid wall and a second rigid wall as a result of an application of heat and pressure to the same and the inherent bonding agent found in the straw stalks. Preferably, the culm block further comprises a plurality of through-holes for receiving structural reinforcements or otherwise and a restraining device wrapped about the block for added structural support.

Abstract: The installation system and method for installing an architectural covering material to a substrate surface utilizes an adhesive mat having layers of adhesive and release layers arranged to allow the covering material to be initially positioned, and later repositioned to be permanently set. The adhesive mat includes a planar carrier member, one or more adhesive layers on at least one planar side of the planar carrier member, and at least one release layer of material removably covering the one or more adhesive layers. In one form, the adhesive mat includes a carrier sheet, first and second adhesive layers on opposing planar sides of the carrier sheet, and first and second release layers of material removably covering the two adhesive layers.

Abstract: A floor panel and a floating floor system include a top surface and a bottom surface. The top surface has a visible decorative pattern and the bottom surface has a recess which extends about the periphery of the bottom surface. The recess has a recess surface. The floor panel includes a joining member with a top surface and a bottom surface. The top surface of the joining member is adhered to the recess surface of the recess. The bottom surface of the joining member and the bottom surface of the floor panel are essentially flush which each other. The use of the joining member does not create any imprints on the top surface of the floor panel.

Abstract: The invention concerns a panel (1, 2, 50, 52, 70, 72, 100, 102, 120, 122, 130, 132, 160, 162, 200) of a flooring system, in particular a laminate floor, with a first side edge (3, 54, 74, 104, 134, 164, 202), and with a second side edge (4, 64, 86, 108, 123, 137, 168) which is arranged opposite the first edge (3, 54, 74, 104, 134, 164, 202), wherein the side edges (3, 4, 54, 64, 74, 86, 104, 108, 123, 134, 137, 164, 168, 202) can be locked with corresponding side edges (3, 4, 54, 64, 74, 86, 104, 108, 123, 134, 137, 164, 168, 202) of further panels (1, 2, 50, 52, 70, 72, 100, 102, 120, 122, 130, 132, 160, 162, 200), wherein the side edges (3, 4, 54, 64, 74, 86, 104, 108, 123, 134, 137, 164, 168, 202) can be brought into engagement with each other, wherein the first side edge (3, 54, 74, 104, 134, 164, 202) is fitted with at least one locking lip (7, 56, 58, 76, 78, 148, 150, 172, 206) and with an elasticity groove (9, 62, 82, 116, 144, 174, 208) adjacent to the locking lip (7, 56, 58, 76, 78, 148, 150, 172, 2

Abstract: An insulated panel includes a first panel portion and a second panel portion which are identical. Each panel portion includes an outer profiled sheet and an inner backing tray with a foam core therebetween. The panel portions each have external sheet overlap parts and backing sheet overlap parts. The corresponding overlap parts of adjacent panel portions are bonded together at the overlap. The bonding may be by an adhesive.

Abstract: The installation system and method for installing an architectural covering material to a substrate surface utilizes an adhesive mat having layers of adhesive and release layers arranged to allow the covering material to be initially positioned, and later repositioned to be permanently set. The adhesive mat includes a planar carrier member, one or more adhesive layers on at least one planar side of the planar carrier member, and at least one release layer of material removably covering the one or more adhesive layers. In one form, the adhesive mat includes a carrier sheet, first and second adhesive layers on opposing planar sides of the carrier sheet, and first and second release layers of material removably covering the two adhesive layers.

Abstract: A spacer used to secure a solar module to a substrate having surface irregularities or unevenness includes a spacer layer located between two adhesive layers. The spacer has a thickness greater than any anticipated irregularities or unevenness on the surface of the substrate. The spacer is comprised of materials that provide sufficient strength and weatherability.

Abstract: A fortified flashing laminate including a polymeric layer having an uncured portion and a cured portion forming a fortified area. The fortified area strengthens the flashing laminate at an area of known vulnerability or increased stress to prevent damage to the flashing laminate during installation and prior to curing of the remainder of the polymeric layer. The fortified flashing laminate may also include a layer of adhesive tape covering at least a portion of the bottom surface of the polymeric layer.

Abstract: A structural fiber cement sheet containing cementitious matrix and reinforcing cellulose fibers distributed throughout the matrix having a dry density less than 1.25 g/cm3, a thickness less than 0.7500 in, and able to withstand uniform loads of 200 psf or greater according to test method of Section 6.4.2.4 of PS2 and with a deflection of less than 0.067 inches at 60 psf when spaced on a span of 24 inches or less on center.

Abstract: Connection device having at least one receiving building component, in particular a wooden body (1), which comprises at least a retention recess (2), in particular a continuous retention recess, and having a composite body (3) which is inserted into the retention recess (2) in the wooden body (1), wherein a composite mass (4) is curably inserted in an interstice (7) in the retention recess (2) between the wooden body (1) and the inserted composite body (3) such that the composite body is substantially frictionally secured in said retention recess (2), wherein an intermediate layer (5), in particular as a formation of the surface of the composite body and/or the composite mass, is at least partially provided between the composite body and the composite mass, providing at least partial decoupling of the composite mass from the composite body.

Abstract: A perimeter insulation strip for use when laying laminate or parquet floors is described. The perimeter insulation strips comprises a vapor barrier film including a perimeter insulation strip bonded on a front side and at least one adhesive layer arranged behind the perimeter insulation strip on a back side. The vapor barrier film has at least one overlapping section starting from the perimeter insulation strip to connect with a vapor barrier film below a floor covering to be laid.

Abstract: A panel includes a metal fabric and fixers, such as two plates, assembled by glue. The metal fabric may be a screen having rod elements and a chain having wire elements. The glue may be constituted from an epoxy resin base and a modified amine hardening agent. The panel may be made by assembling two plates on a fabric by gluing. The panel may also be made by coating two plates with glue, positioning fabric on the rear plate, and positioning the front plate on the fabric and the rear plate.

Abstract: The present invention relates to, inter alia, methods for the treatment of wallboards and the treated wallboards. In particular, the invention relates to the treatment of wallboards with a fungicidally effective amount of a strobilurin or strobilurin-type fungicide. In a particular embodiment the fungicide is azoxystrobin. The invention also provides for the treatment of wallboards and building materials with combinations of fungicides present in synergistic amounts.