Westlake Royal Building Products™ ("Westlake Royal"), a Westlake company (NYSE: WLK), is introducing four new gable vents to its Mid-America® line of exterior siding accessories. The new gable vents ...

Shift the hole so the top of the vent cap rests on the high point of the lap siding. Pull the vent cap and duct apart to make measuring easier. Bore a 4-1/4 inch hole with a hole saw. Pro tip ...

HOUSTON--(BUSINESS WIRE)--Westlake Royal Building Products ™ (“Westlake Royal”), a Westlake company (NYSE: WLK), has added a new V-Groove profile to the Celect ® Cellular Composite Siding line.

Westlake Royal Building Products ™ (“Westlake Royal”), a Westlake company (NYSE: WLK), is introducing four new gable vents to its Mid-America® line of exterior siding accessories.

These gable vents feature a full-size architectural trim design for easy installation with large siding pocket. They allow for quick disassembly of the face and black plate; unlike competing products, ...