Photo: Sam Lion

Where should you not use MDF?

There are a few areas where MDF should never be used – kitchen or bathroom cabinets and trim in the bathrooms. These are the two areas we see the most failure because of moisture. Window sills are also problematic if the windows have any sort of condensation or leaking problems.

sisupainting.com - The Pros and Cons of Medium-Density Fiberboard (MDF)

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Medium-Density Fiberboard (more commonly known as MDF) is a man-made building material used as a substitute for real wood millwork in homes. We most often see it used in trim, cabinetry and interior doors. This man made material has become very popular in new construction and remodels for a couple of reasons; it’s cheaper than real wood and it looks very nice after it’s been painted. Remodelers and homeowner alike love this product because of the extra money it puts in their pockets and it looks amazing once the work is complete. Real wood is expensive. However, our painters have a different take on this product. Painting this product the first time around doesn’t really pose any issues worth mentioning, but when it comes to repaints, it’s a whole different story. When MDF gets wet, it swells. Attempts to fix the problem in the traditional way (Bondo or other fillers and sanding) are futile and can even make the problem worse. The only way to fix moisture damaged MDF is to replace it. There are a few areas where MDF should never be used – kitchen or bathroom cabinets and trim in the bathrooms. These are the two areas we see the most failure because of moisture. Window sills are also problematic if the windows have any sort of condensation or leaking problems. Additionally, if you have a hectic lifestyle with kids and pets, MDF may simply be the wrong choice. If your wood work is going to take a lot of abuse, spending the extra money now on real wood could save you money and headaches down the road. Most people seem to be satisfied with the MDF product and have experienced great results, but I don’t see this honeymoon phase lasting too much longer. As the product ages, the true test of time is going to bear results and I’m afraid some of the results are not going to be as satisfying as they are at the present time. Natural materials tend to outperform man made substitutes. This is true for all kinds of materials; not just building materials. For example, natural materials used in clothing and the food we eat are better than man made. Budget restraints may require the use of MDF, but it’s better to make the choice with your eyes wide open so you aren’t disappointed down the road. Whatever choice you end up making, I hope your project turns out better than you dreamed.

Best regards,

Nancy

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How do you hang a 50 pound mirror?

To hang a heavy mirror, it's best to select packages of heavy-duty anchors. The mirror will hang from two points on the wall, so you'll need one anchor for each hanger that is not driven into a stud. Hangers and hooks are also rated by weight, so select those that are designed to hold the weight of your mirror.

homedepot.com - How to Hang a Heavy Mirror - The Home Depot

1 Preparation and Safety

Having the proper hardware and necessary tools on hand will help make hanging your mirror an easier – and successful – project. The first step of considering how to hang a heavy mirror is to know what type of wall you have, because the anchors and mounting hardware used for drywall, plaster and brick walls can vary. Purchase mounting hardware and anchors that are rated for the weight of your mirror and type of wall. Weight limits will be indicated on the product packaging and a picture hanging kit will have a variety of sizes. Use a bathroom scale to find the weight of your mirror.

Here are some other tips to keep in mind:

When determining how to hang a heavy mirror on drywall, it is preferred to secure hangers into the center of wall studs. Use an electronic stud finder to locate them.

Use two hangers spaced along the mirror’s width to distribute the weight.

Be sure to get accurate readings from your tape measure and level, whether you’re considering how to hang a heavy mirror with wire or with brackets. Large mirrors are heavy and can be cumbersome to work with. Have a helper assist with lifting when necessary. Refer to local building requirements for additional guidance if you live in a seismic zone. Tip: Your prep work for how to hang a heavy mirror, especially antique ones, should include checking the integrity of the frame. Ensure that it will support the weight of the mirror. Reinforce weak joints with angle brackets fastened to the back of the frame.