Bmic LLC

Ft Synthetics Inc.

Gurpreet Singh Sandhar

Sahar Khedri

Kenneth Russell Robson

A roofing system includes a roof deck, a roofing underlayment overlying the roof deck, a foam adhesive on an uppermost surface of the roofing underlayment, and a roofing material on the foam adhesive. The roofing material may include roofing tile. The roofing underlayment includes a first fleece layer contacting a surface of the roof deck, a scrim layer overlying and contacting the first fleece layer, and a second fleece layer overlying and contacting the scrim layer. The second fleece layer includes polyethylene terephthalate and has an uppermost surface opposite to the scrim layer, where the uppermost surface has an embossed texture.

Multi-layer roofing system

A multi-layer membrane with fire-resistant properties having improved thermal stability and shelf-life is provided. The multi-layer membranehas at least a water resistant polymeric layerbonded to a fire resistant componentThe fire resistant componenthas a first fire retardant coatingbonded to a carrier layerThe fire resistant component may further include a second fire retardant coatingbonded to a surface of the carrier layer opposite to the first fire retardant coating. The first and second fire retardant coatings comprise a fillermixed with a carrierThe membrane may include a back bonding layerbonded to the bottommost layer thereof to adhesively secure to a structural support structure such as a roof. A release linermay be releasably secured to the back bonding layer. Additional layers may be included to provide for further support and/or additional functional properties to the membrane.

Fire-resistant multi-layer membrane

A multi-layer membrane with fire-resistant properties having improved thermal stability and shelf-life is provided. The multi-layer membranehas at least a water resistant polymeric layerbonded to a fire resistant component. The fire resistant componenthas a first fire retardant coatingbonded to a carrier layer. The fire resistant component may further include a second fire retardant coatingbonded to a surface of the carrier layer opposite to the first fire retardant coating. The first and second fire retardant coatings comprise a fillermixed with a carrier. The membrane may include a back bonding layerbonded to the bottommost layer thereof to adhesively secure to a structural support structure such as a roof. A release linermay be releasably secured to the back bonding layer. Additional layers may be included to provide for further support and/or additional functional properties to the membrane.

A breathable synthetic roofing underlayment having a hydrophobic nonwoven layer on top to deflect water, a liquid water-resistant and vapour-permeable membrane layer in the middle, and a bottom nonwoven layer which is hydrophilic and has rapid and high liquid water absorbency. This accelerates the movement of liquid water from a roofing deck into the nonwoven bottom layer and increases the rate of transfer of water through the underlayment. The bottom layer comprises a carrier resin and a hydrophilic agent, which may be a polyamide such as polycaprolactam (Nylon 6) or poly(hexamethylene adipamide), a polysorbate or other composition. The underlayment is especially useful for application to wet roofing decks.

Roofing underlayment

A synthetic nonwoven fabric having bonded fibers forming channels surrounding unbonded fibers forming raised slip resistant spots. The fabric is made by extruding hot polymer through a spinneret die onto a moving belt to form a sheet of random fibers, which sheet undergoes a calendering process between a pair of heated rollers, one of which rollers having a plurality of cavities defined in its surface. The resulting fabric can be laminated and otherwise combined with other layers as desired to provide an end product having good slip resistant properties.

Growing community of inventors

Langley, Canada

Gurpreet Singh Sandhar