Fenestration assemblies including composite frame cores and methods for same

A fenestration assembly comprising:

• a peripheral frame having a peripheral frame core, the peripheral frame core includes a hollow peripheral core wall including a composite material;
• at least one panel movably coupled with the peripheral frame, the at least one panel includes:
• a glazing unit seated within the at least one panel;
• and
• a frame core, the frame core having:
• a core exterior face proximate an exterior of the fenestration assembly;
• a core interior face proximate an interior of the fenestration assembly;
• a core wall including a filament reinforced polymer, and the core wall extends continuously between the core exterior face and the core interior face;
• and
• one or more core cavities within the frame core, the one or more core cavities surrounded by the core wall;
• wherein the frame core includes a modulus of elasticity of at least 7 million pounds per square inch and a thermal conductivity of 4.0 (Btu in)/(hr ft2° F.) or less.

A method of making a fenestration assembly comprising:

• assembling a fenestration frame with a frame core, assembling the fenestration frame includes:
• continuously forming the frame core from a base resin and filaments in the base resin, the frame core includes a core wall continuously extending between a core interior face and a core exterior face;
• cutting the frame core into two or more components of a fenestration frame;
• assembling the two or more components into the fenestration frame;
• and
• wherein the frame core includes a modulus of elasticity of at least 7 million pounds per square inch and a thermal conductivity of 4.0 (Btu in)/(hr ft2° F.) or less;
• and
• positioning a glazing unit within the fenestration frame between the core interior face and the core exterior face.