A method is provided for forming an adhered membrane roof system that meets Factory Mutual (FM) 4470/4474 standards for wind uplift. The method comprises applying a bond adhesive to a substrate on a roof to form an adhesive layer and applying a membrane directly to the adhesive layer. The bond adhesive includes a moisture-curable polymer.

Granules include a hydrophobic surface treatment. The hydrophobic surface treatment may include a hydrocarbon oil and a silicon-containing polymer, in which the hydrocarbon oil is present in an amount of at least 0.025 percent by weight, and the silicon-containing polymer is present in an amount of greater than 0.05 percent by weight of the roofing granules. The hydrophobic surface treatment may include silicon-containing polymer present in an amount of greater than 0.05, greater than 0.25 percent, or greater than 0.5 percent by weight of the roofing granules. Use of the granules as roofing granules is also disclosed. A construction article includes a substrate, an organic coating, and the roofing granules at least partially embedded in the organic coating. Methods of making the granules and the construction article are also disclosed.

Granules include a blend of porous, mineral-based granules and additional granules having a hydrophobic polymeric coating. Use of the granules as roofing granules is also disclosed. A construction article includes a substrate, an organic coating, and the roofing granules at least partially embedded in the organic coating. Methods of making and using the construction article are also disclosed.

Provided is a seamless composite roofing system for a gravel built up surface. The system includes a first fluid application flood coat of bentonite emulsion applied over a gravel built up surface at a rate of 15 gallons per 100 square feet and a second fluid application flood coat of bentonite emulsion applied at a rate of 10 gallons per 100 square feet. The second flood coat includes approximately 3 to 6 pounds of chopped reinforced fiberglass per 100 square feet, and is applied over the first flood coat after the first flood coat cures. A fiberglass reinforcement layer with approximately 3 to 6 pounds chopped reinforced fiberglass per 100 square feet is applied over an area surrounding any roof top penetrations, followed by an elastic trowel grade mastic layer. An asphalt primer is then applied over the second flood coat, followed by a reflective Energy Star Rated top coat.

Provided is a seamless composite roofing system for a gravel built up surface. The system includes a first fluid application flood coat of bentonite emulsion applied over a gravel built up surface at a rate of 15 gallons per 100 square feet and a second fluid application flood coat of bentonite emulsion applied at a rate of 10 gallons per 100 square feet. The second flood coat includes approximately 3 to 6 pounds of chopped reinforced fiberglass per 100 square feet, and is applied over the first flood coat after the first flood coat cures. A fiberglass reinforcement layer with approximately 3 to 6 pounds chopped reinforced fiberglass per 100 square feet is applied over an area surrounding any roof top penetrations, followed by an elastic trowel grade mastic layer. An asphalt primer is then applied over the second flood coat, followed by a reflective Energy Star Rated top coat.

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.

Provided is a seamless composite roofing system for a gravel built up surface. The system includes a first fluid application flood coat of bentonite emulsion applied over a gravel built up surface at a rate of 15 gallons per 100 square feet and a second fluid application flood coat of bentonite emulsion applied at a rate of 10 gallons per 100 square feet. The second flood coat includes approximately 3 to 6 pounds of chopped reinforced fiberglass per 100 square feet, and is applied over the first flood coat after the first flood coat cures. A fiberglass reinforcement layer with approximately 3 to 6 pounds chopped reinforced fiberglass per 100 square feet is applied over an area surrounding any roof top penetrations, followed by an elastic trowel grade mastic layer. An asphalt primer is then applied over the second flood coat, followed by a reflective Energy Star Rated top coat.

This invention relates to a method and system of applying a fluid material to a roofing surface. By modifying a peristaltic pump-driven sprayer device, a fluid material having a viscosity of 10,000 to 40,000 centipoise at 25° C. can be effectively sprayed onto a roofing surface. Additionally, the use of a modified peristaltic pump-driven sprayer device allows for the fluid material to be applied onto the roofing surface at a faster rate than other spraying methods.

This invention relates to a method and system of applying a fluid material to a roofing surface. By modifying a peristaltic pump-driven sprayer device, a fluid material having a viscosity of 10,000 to 40,000 centipoise at 25° C. can be effectively sprayed onto a roofing surface. Additionally, the use of a modified peristaltic pump-driven sprayer device allows for the fluid material to be applied onto the roofing surface at a faster rate than other spraying methods.

A plurality of non-white roofing granules is provided. The roofing granules include a plurality of particles including mineral fines and a calcia-based cement binder; and a non-white pigment-containing coating disposed on at least a portion of exterior surfaces of the particles. Methods of making the roofing granules are also provided. One method includes: mixing material including mineral fines and a calcia-based cement binder to provide agglomerates; curing the agglomerates to provide particles; and coating at least a portion of exterior surfaces of the particles with a non-white pigment-containing coating. Another method of making the roofing granules includes: providing an aqueous dispersion in a tool having cavities, the aqueous dispersion including mineral fines and a calcia-based cement binder; curing the aqueous dispersion in the tool to provide particles; and coating at least a portion of exterior surfaces of the particles with a non-white pigment-containing coating. The roofing granules exhibit an intrinsic total solar reflectance greater than 0.3. Often, the roofing granules contain by-product mineral fines.