Liquid applied roofing systems and methods for forming roofs

Patent metadata

Field	Value
Publication number	US-12473735-B2
Application number	US-202318182550-A
Country	US
Kind code	B2
Filing date	Mar 13, 2023
Priority date	Sep 30, 2019
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

A method of forming a sloped roof can comprise obtaining a base layer comprising at least one of a permeable mesh, woven fabric, non-woven fabric, plastic, foam material or combinations thereof; applying the base layer over a roofing substrate of the sloped roof; and applying a liquid roofing material to the base layer to form a liquid applied roof.

First claim

What is claimed is:

1 . A temporary roofing system comprising:
a base layer overlaid on a roofing substrate;
wherein the base layer comprises a permeable mesh;
a lipophilic coating applied on an upper facing surface of the base layer;
wherein the lipophilic coating consists of a wax, a silicone oil, or a combination thereof;
a protective layer positioned along the lipophilic coating of the base layer, the protective layer comprising a sheet of a hydrophobic material releasably attached to the lipophilic coating of the base layer;
wherein the protective layer is removable from the lipophilic coating of the base layer and is adapted to deter water flow through the base layer; and
wherein when the protective layer is removed and the lipophilic coating is exposed, the base layer is configured to at least partially receive a liquid roofing material therethrough to form a permanent roofing structure.

2 . The temporary roofing system of claim 1 , wherein the lipophilic coating comprises a material adapted to dissolve upon contact with the liquid roofing material.

3 . The temporary roofing system of claim 1 , wherein the base layer further comprises a plurality of restraining features adapted to restrain at least a portion of the liquid roofing material along the roofing substrate to control flowing and sagging of the liquid roofing material of the liquid roofing material.

4 . A temporary roofing system comprising:
a base layer overlaid on a roofing substrate;
wherein the base layer comprises a permeable mesh;
a lipophilic coating applied to the base layer;
wherein the lipophilic coating consists of a wax, a silicone oil, or a combination thereof;
a protective layer positioned along an upper facing surface of the base layer;
wherein the protective layer is removable from the upper facing surface of the base layer and comprises a hydrophobic material adapted to deter water flow through the base layer; and
wherein when the protective layer is removed and the lipophilic coating is exposed, the base layer is configured to at least partially receive a liquid roofing material therethrough to form a permanent roofing structure.

5 . The temporary roofing system of claim 4 , wherein the lipophilic coating comprises a material adapted to dissolve upon contact with the liquid roofing material.

6 . The temporary roofing system of claim 4 , wherein the base layer further comprises a plurality of restraining features adapted to restrain at least a portion of the liquid roofing material along the roofing substrate to control flowing and sagging of the liquid roofing material of the liquid roofing material.

7 . The temporary roofing system of claim 4 , wherein the liquid roofing material comprises polysiloxane, polyurea, polyurethane, silane modified ether, silane modified ester, silane modified polyurethane, silane modified polyurea, epoxy, acrylic, poly acrylic, or combinations thereof.

Assignees

• Bmic Llc

Inventors

• Zheng Yan
• Xiao Yixi
• Boss Daniel E
• Chich Adem

Classifications

• E04D11/02 Primary

  Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition (gravelling of flat roofs E04D7/00; venting or ventilation E04D13/17) · CPC title

• E04D7/00

  Roof covering {exclusively consisting of} sealing masses applied in situ; Gravelling of flat roofs · CPC title

• B32B2419/06

  Roofs, roof membranes · CPC title

• B32B2307/7265

  Non-permeable · CPC title

• B32B2260/021

  Fibrous or filamentary layer · CPC title