A Precast Building Component and Window Frame System and A Method of Manufacturing a Precast Building Component and Window Frame System

A method comprising:

• positioning a window frame within a window opening of a precast building component, wherein the precast building component comprises solidified settable material;
• forming a void between the window frame and the precast building component, wherein the void surrounds the window frame;
• wherein barrier material is placed within a gap between opposing surfaces of the window frame and of the precast building component to form a boundary of the void, wherein at least part of the opposing surfaces form other boundaries of the void, and wherein the void is defined by the boundary and the other boundaries and an open end;
• filling the void with a settable adhesive sealant, up to the open end of the void;
• wherein the settable adhesive sealant, once set, provides a continuous seal that surrounds the window frame and supports the window frame within the window opening.

A precast building component and window frame system, comprising:

• a precast building component, the precast building component comprising solidified settable material and a window opening;
• a window frame supported within the window opening;
• wherein the window frame is surrounded by a continuous seal, wherein the continuous seal supports the window frame within the window opening;
• wherein the continuous seal comprises a settable adhesive sealant that has set within a gap between opposing surfaces of the window frame and of the precast building component, wherein the settable adhesive sealant has a first boundary within the gap, other boundaries formed by the opposing surfaces, and extends to a further boundary flush with or raised above a rear face of the precast building component.