1 Pre-fabricated, highly permeable air and water barrier membrane in liquid chemical form for use in construction, particularly for use on roofs, floors, walls, ceilings, foundations, pavements, decks, and other building structures; pre-fabricated, self-adhering, highly permeable air and water barrier membrane in liquid chemical form for use in construction, particularly for use on roofs, floors, walls, ceilings, foundations, pavements, decks, and other building structures; pre-fabricated water barrier membrane in liquid chemical form for use in construction, particularly for use on roofs, floors, walls, ceilings, foundations, pavements, decks, and other building structures; pre-fabricated, self-adhering air and water barrier membrane in liquid chemical form for use in construction, particularly for use on roofs, floors, walls, ceilings, foundations, pavements, decks, and other building structures