Why is my crown molding separating? Humidity and extreme changes in temperature can lead to molding beginning to detach from walls or the ceiling. Gaps and cracks develop, making the crown molding separate from the wall. Nails and adhesive caulk are no match for temperature-related separation and moisture.
Do you glue or nail crown molding? Crown is typically nailed up with a 2” finishing nail and a compressor and finishing gun. Outside corners are usually done with a brad nailer and 1” brad nails with glue. Studs are generally 3-1/2”, drywall a ½” and the crown moulding a minimum of ½”; therefore 2” finishing nails are necessary.
How much does it cost to fix crown molding? To have a professional install crown molding, expect to pay between $4 and $15 per linear foot for materials and labor. A single room costs anywhere from $300 to $800, while a whole house installation costs between $3,200 and $12,000.
What is the best filler for crown molding?
- Caulk – Caulk is good to use on very small gaps and holes.
- Spackling – Good to fill nail holes or to fill gaps where you need the filler to hold its shape.
- Wood Putty – Good for filling in gaps and joining seams.
- Wood Filling – Good for filling in nail holes gouges.