Crown molding is a process of compressing a large family of moldings that are designed to give a stunning glow to the finished top edge in the house. Crown moldings are generally made up of wood that can be painted, stained or left as it is. As the wood tends to expand and contract with the atmospheric changes in humidity, flexible caulks should be used at the joints and bottoms.
Purpose of Installing Crown Molding:
Crown moulding brings a graceful look to the top edge of the room in the house making it is more beautiful and attractive and is generally used for capping walls, plasters and in the creation of interior and exterior base for wall decor. Installing crown molding is a way to add character to a room and add a classy grace to it. It also adds a touch of elegance to the house. It is also used in the door and window hoods in the house.
Measurement of Crown Moldings to be installed:
The height of the ceiling is the negotiator of the size of the crown molding in a room. These crown moldings typically measure between 3 to 20 inches wide depending on the height of the room. Cutting of corners is the hardest part of the installation of crown molding because it fixes at an angle between the wall and the edge of the ceiling. On an average for standard 8 feet high ceilings the crown height should be two and a half to six inches, for 9 feet high ceilings three to seven and a half inches and for 10 feet high ceilings three and a half to eight inches shall be considered.
The material of installing crown molding: The crown rail molding are manufactured of the following materials :
Plaster: Plaster crown moldings are usually for plaster walls. It can be cast into complex profiles that can’t be crushed out of wood. Installing plaster crown molding can be quite costly and needs more care as they are made up of very heavy material and cracks very easily.
Solid Wood: Solid wood crown moldings are available in many simple stock profiles and can be used for any installations. Natural wood is a conventional material that is hard to reproduce; it’s color and grade patterns add warmth to the room. The drawback of installing crown molding of solid wood is that there is a chance of shrinking and swelling with changes in the weather.
Flex: Flex is a rubbery material that comes in an array of profiles that can bend around a curved wall without the need for relief cuts while installing crown molding. Installing crown molding of flex is quite costly and special order is required for its installation.
PVC: This type of crown molding is good for exteriors, bathrooms and the areas where moisture is a matter of concern. The plastic polymers of this product do not get damaged when there lots of moisture. The slick surface of the PVC crown molding is difficult to paint neatly but its paint is required to cover the plastic sheen in the area of installation.
Polyurethane: Polyurethane crown molding is one of the less expensive materials, they are more stable, rot and insect repellent than wood. While installing crown molding of polyurethane keeps in mind that it is slightly softer than wood, it is good only for painted applications as it dents very easily.
MDF: It is a low-cost alternative to solid wood and is more stable. Medium density fiberboard crown molding leads to cutting and posing the same challenges of solid wood.