Fenestrations exhibiting reduced thermal bowing and/or localized increased strength

A fenestration assembly comprising:

• a sash or a frame, the sash or a frame comprising
• a first lineal member;
• a second lineal member;
• a third lineal member, wherein the third lineal member is connected to the second lineal member and the first lineal member;
• and
• a fourth lineal member, wherein the fourth lineal member is connected to the second lineal member and the first lineal member;
• wherein at least one of the first lineal member, the second lineal member, the third lineal member, and the fourth lineal member comprise a first lineal extrusion at least partially formed with a first composition;
• the first composition comprising
• at least 5 wt. % fibers;
• and
• a first polymer resin;
• wherein at least one of the first lineal member, the second lineal member, the third lineal member, and the fourth lineal member comprise a second lineal extrusion at least partially formed with a second composition;
• and
• the second composition comprising a second polymer resin.

A fenestration assembly comprising:

• a lineal extrusion, wherein the lineal extrusion defines one or more interior hollows, the lineal extrusion comprising
• an interior portion, wherein the interior portion is adjacent an interior side of the fenestration assembly;
• an exterior portion, wherein the exterior portion is adjacent an exterior side of the fenestration assembly;
• a middle portion, wherein the middle portion interconnects the exterior portion and the interior portion;
• and
• a first composition, the first composition comprising
• at least 5 wt. % fibers;
• and
• a first polymer resin;
• a second composition, the second composition comprising a second polymer resin;
• wherein the second composition is different than the first composition;
• and
• wherein at least one of the interior portion, the middle portion, and the exterior portion comprises greater than 50% by volume of the first composition and another of the interior portion, the middle portion, and the exterior portion comprises greater than 50% by volume of the second composition.

A fenestration assembly comprising:

• a lineal extrusion, wherein the lineal extrusion defines one or more interior hollows, the lineal extrusion comprising
• a single-wall glass lip;
• wherein the single-wall glass lip is adjacent an exterior side of the fenestration assembly;
• wherein the single-wall glass lip at least partially defines a receiving channel for an insulating glazing unit;
• a first composition, the first composition comprising
• at least 5 wt. % fibers;
• and
• a first polymer resin;
• and
• wherein the single-wall glass lip comprises greater than 50% by volume of the first composition.