CROWN MOULDING INSTALLATION INSTRUCTIONS

Crown moulding installation.

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• Few commercially available mitre boxes are large enough to handle crown mouldings.
• Determine moulding dimensions; Height (against wall) & Projection (on ceiling).
• Crowns are cut upside down, so ceiling surface goes on the bottom.
• Nail wood stops for consistent positioning in box.

• If Crown has an ornamental motif, locate the center of the repeat pattern.
• Start pre-fitting from the center of your main wall (ie; wall with a fireplace mantle).
• Work from the middle to the comers.
• Symmetrical comers give a professional, balanced look.
• If pattern doesn't fit precisely, cuts can be made at the center of a repeat.
• Use a surform (shaving rasp) for small adjustments.
• Cut and fit all pieces for the space prior to installation.

• Snap a chalk line on the wall where the base of the Crown will sit.
• Snap a second line on the ceiling where the header (top) comes.
• Tap two nails into the base line for each section of moulding to be installed.
• If wall or ceiling surfaces are not straight, use temporary wood shims to fill gaps. These can be removed after installation or trimmed flush with a utility knife prior to caulking.
• Pre-drill and countersink holes for screws at locations which can be easily filled later. Few are needed, as they are only required to hold the piece in place until glue dries.

• Use a thin bead of construction grade drywall adhesive (ie; Miracle brand DSA20) on plaster surfaces making contact with wall and ceiling. CAUTION: Avoid excess, as cleanup is difficult.
• Use two people to install sections. One for holding, while the other uses a screw gun.

• Metal "plaster sculpting" tool: One flat narrow squared end, and one rounded flat end.
• Small, hand-sized rubber or plastic container for joint mixture.
• Water bucket (1/2 Gal.).
• #6 (1/2") and #2 (1/4") natural bristle, flat, artists' paint brushes.
• Sandpaper grades: 80, 120, 220.
• Plaster (in powder form).
• Joint compound.

• Done properly, all joints and holes should disappear (once painted).
• In small container mix: 3/4 wet plaster to 1/4 joint compound.
• Use sculpting tool and apply mixture to joint spaces.
• Carefully pack it in and smooth out the surface to blend with surrounding area.
• Go over it with a paintbrush and clean water using a light, feathering stroke.
• Use sculpting tool, a wet brush, and sandpaper (once dry) to make sharp, clean corners.
• The same technique is used to fill all screw holes.

• Once fine finishing is done, caulk all seams along wall and ceiling edges of the Crown.
• Caulk and plaster must be dry before painting.

• A paint sprayer gives the most uniform appearance, but is not required.
• Be sure all surfaces are free from dirt or oily film. It is best to prime the moulding to ensure consistent color.
• Plaster accepts oil and acrylic latex paints equally well.

PLASTER DOME INSTALLATION INSTRUCTIONS

To order plaster mouldings from our online Catalog, we suggest that you fill out our Order Form and return it to us by fax or by mail. Phone orders are also welcome. Link to our Price List and our list of Terms & Conditions to understand all charges, including shipping, handling and restocking. We welcome all inquiries about our products or plaster ornament in general. To return to the home page, click  MCMC HOME.

Monumental Construction & Moulding Company, Inc.
POB 34102
Washington, DC, 20043

ph: 202.745.0658, fax: 202.745.5802

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