A foam generation and distribution gun, comprising: a. an upstream end and a downstream end (6, 7); b. a first elongated chamber of a first diameter and in which a plurality of bubble forming media are contained and that extends between a first end portion positioned adjacent to said upstream end, and an opposite second end portion; wherein said bubble forming media comprises beads composed of glass; c. first and second conduits (1, 20) for carrying bubble fluid and compressed air, respectively, to said first end portion, wherein a mixture of bubble fluid and compressed air is generated and forcibly passed through said first elongated chamber at a first pressure, whereby upon exiting said first chamber a foam fluid is formed from said compressed air and bubble fluid; d. a second chamber extending from said first elongated chamber and in which a first foam fluid reforming structure is contained, whereby said foam fluid is reformed as it exits said second chamber; wherein said first foam fluid reforming structure comprises first and second mesh screens (56, 58) positioned in spaced parallel relation to one another; e. a third chamber extending outwardly from said second elongated chamber and in which a second foam fluid reforming structure is contained and through which said foam fluid passes, wherein said foam fluid is at a second pressure lower than said first pressure upon entering said third chamber and at a third pressure equal to said second pressure upon exiting said third chamber; f. a foam distribution conduit positioned downstream from said third chamber; and g. a third conduit (30, 80) for carrying cement to said foam distribution conduit, wherein said cement is combined with said foam fluid prior to passing through said foam distribution conduit, wherein said cement and foam fluid combination are mixed together at a fourth pressure lower than said second and third pressures. a. an upstream end and a downstream end (6, 7); b. a first elongated chamber of a first diameter and in which a plurality of bubble forming media are contained and that extends between a first end portion positioned adjacent to said upstream end, and an opposite second end portion; wherein said bubble forming media comprises beads composed of glass; c. first and second conduits (1, 20) for carrying bubble fluid and compressed air, respectively, to said first end portion, wherein a mixture of bubble fluid and compressed air is generated and forcibly passed through said first elongated chamber at a first pressure, whereby upon exiting said first chamber a foam fluid is formed from said compressed air and bubble fluid; d. a second chamber extending from said first elongated chamber and in which a first foam fluid reforming structure is contained, whereby said foam fluid is reformed as it exits said second chamber; wherein said first foam fluid reforming structure comprises first and second mesh screens (56, 58) positioned in spaced parallel relation to one another; e. a third chamber extending outwardly from said second elongated chamber and in which a second foam fluid reforming structure is contained and through which said foam fluid passes, wherein said foam fluid is at a second pressure lower than said first pressure upon entering said third chamber and at a third pressure equal to said second pressure upon exiting said third chamber; f. a foam distribution conduit positioned downstream from said third chamber; and g. a third conduit (30, 80) for carrying cement to said foam distribution conduit, wherein said cement is combined with said foam fluid prior to passing through said foam distribution conduit, wherein said cement and foam fluid combination are mixed together at a fourth pressure lower than said second and third pressures.