Part 1, Building a Window Cornice
Crackle Glaze Can Be a Unique Window Treatment.
Your room is calling out for something a little unusual. You are used to seeing windows with cornices that matches the drapes. What you haven’t seen as often, if at all, are window cornices with painted finishes.
There are a number of glaze effects that would offer a lovely finish to a window cornice. An antique crackle glaze is the application of choice for this project because it is an authentic distressing of paint. It is also a finish that is easy to accomplish.
If you already have cornices that are painted and in good shape then the crackle glaze can be applied over them. If not, here are some simple directions in how to make some for your windows:
Making Window Cornices from Scratch:
For this project, the cornice size will be low profile and slender. Your windows may need another size to suit their casings, the length of the drapes and the height of the windows. It boils down to what you prefer.
The cornice consists of four pieces of flat wood and two different sized decorative moldings. There is a front flat side for the face of the cornice, two 4”side pieces that go back to the wall, and a top cover piece.
The cornice should be the width of your window plus 2” for play on both sides and another ½” on both sides for the 4” long side pieces of the cornice when they are attached to the front panel. So, you will add a total of 5” onto the measurement of the width of your window for the total length of the cornice.
The cornice will be a total of 7” high, which includes the ½” width of the top cover of the cornice. Use ½” birch plywood because it is smooth for paint. The lumber store will cut the wood for you.
There is a top decorative molding that will be applied with an outside miter at both corners where it meets the same molding along the side panels. This molding can be approximately 2” to 2 ½” wide. The bottom will have a molding approximately 1” to 1 ½” wide and will also be mitered at the corners where it meets the same molding at the side panels. These can be the decorative moldings of your choice.
Assembling the cornice:
Drill three 1/8” holes ¼” in from the left and right edges on the good side of the 40” x 6 ½” face of the cornice.
Stand the front panel up along its edge/length and align the 4” long side panels to the back edge of the front panel so they match in height which is 6 ¾”. Remember that there is a ½” thick top cover to the cornice which goes all the way to the face, making the height of the cornice a total of 7”. The depth of the basic rectangle where the decorative moldings will attach will be 4 ½” when completed. This is because of the thickness of the front panel added to the side panels when screwed together.
Drill through the holes at the edge of the face of the cornice into the edge of the 4” long side panels. Apply a thin coat of carpenter’s glue to the edges that will meet before screwing them together. Three #6 x 1 ½” screws can now be screwed into the holes so that the side panels are now tight to the front panel.
The top cover of the cornice will measure the entire length and depth of the cornice side panels. It will go right to the wall when hung over the window and be part of the face of the cornice.
The top cover to the cornice can be applied in the same way the two side panels were applied to the front panel. Apply carpenter’s glue to the where the edges of the panels will meet. Eight to ten # 6x 1 ½” screws can be drilled and screwed through the top cover panel into the top edge of the front and side panels.
What you now have is a long, rectangle shape with the bottom and back side open.
Adding the Decorative Moldings:
The 2” wide decorative molding can now be cut so that it will go all around the top front and side edges of the rectangle. A miter will have to be cut at the corners where the front and side panels meet. Drill holes through the molding before tacking it onto the assembled cornice panels. Spread a thin coat of carpenter’s glue on all the surfaces that will meet when the moldings are nailed onto the panels.
The same steps can be applied to attaching the decorative molding at the bottom of the cornice. All holes and open cracks can be filled with wood putty and sanded smooth when dry.
Preparation for Crackle glaze:
The entire cornice should be gently sanded with 150 grit sandpaper, wiped clean of sanding dust and primed with a latex all purpose primer or wood primer.
‘L’ brackets can be attached to the wall at either end of the window casing. The cornice will be placed on top of the ‘L’ brackets and screwed in from underneath. The two inches of play in the inside length of your cornice will now come in handy.
But wait! We have to crackle glaze your cornice before installing it over the window.
See Part 2 of this article.
Framed Art Decor offers hundreds of museum quality art prints, photographs and posters. Expert framing and matting assistance is offered on their website with just a click. Helpful and informative decorating and fine art articles appear on the website daily.
Leagh Janell is passionate about fine art and decorating. His 30 years as a fine artist and decorative artist for a high profile clientele have afforded him some authority in those fields. At present, Mr. Janell writes for www.FramedArtDecor.com
{ 0 comments }




