Caulk failure? Your siding may be the problem

Caulk failure? Your siding may be the problem

Exterior Painting Home Contractors Uncategorized Women In Construction

 

Repainting your home is an investment. Under normal circumstances, if you hire professional painters who properly prepare and apply two coats of quality paint, and if you maintain your property between paint applications, you can expect your new paint job to last 10 to 15 years.

Unfortunately, sometimes other factors affect the longevity of a quality paint job. One of the most common, if unexpected, factors that can affect the appearance and longevity of paint is siding caulk failure.

Caulk is the waterproof filler and sealant used in building work and in repairs. It is often used by painters to fill cracks or repair holes in order to create a smooth and uniform surface on which paint can be applied. When caulk separates or fails to adhere to a surface it can result in unsightly cracks, breaks or openings into which moisture can seep and cause a secondary, and serious, problem.

This failure can happen for a variety of reasons. The most common cause is directly related to the substrate (siding material) to which the caulk (and paint) is applied. Due to exposure, weather and outdoor elements, siding wears over time. Some types tend to wear well while others tend to experience caulk failure at an alarming rate.

We have seen the majority of caulk failure occur with the most popular brand of siding used by today’s builders and remodelers: HardiePlank®.

HardiePlank® siding is very popular because it is an extremely durable alternative to vinyl or wood siding. When it’s new, it actually holds paint longer than any other siding and does not require back brushing or rolling, under normal circumstances, which makes it easy to work with.

The problem is mostly with HardiePlank® siding which was manufactured before 2008. This siding has had serious issues with cracking and breaking due to expansion and contraction of the product as temperatures vary.  The obvious fix for this problem was to caulk at the butt joints in order to close the gaps; however, the same expansion and contraction that caused the initial cracking causes the filler caulking to fail. As a result, the seal is broken, allowing water penetration to occur, even on a freshly painted house.

The manufacturer of HardiePlank® addressed this serious issue in 2008 by requiring builders to install flashing behind the butt joints and recommending that painters did not, from that point forward, caulk in the butt joints.  Thankfully, as a result of this change in policy, newer homes with this siding should not have a caulk failure problem. Unfortunately, because the “fix” for this problem is not widely known by all builders and painters, we still run across this type of caulk failure fairly frequently, even in homes built after 2008.

If you are a homeowner or manager for a property with HardiePlank® siding, it is important to understand that paint will not wear as well nor look as good when applied over siding that is failing due to cracking or breakage or caulk failure.  We cannot guarantee results when working with this type of siding, because the problem is with the product, not with the paint.

There are some things you can do to minimize the issue, however.  If your home was built before 2008 and you have HardiePlank® siding, you should regularly maintain it by:

  1. Replacing caulking as soon as you notice it failing.
  2. Touching up the paint after any caulking repairs – this will help maintain both the appearance and the seal.
  3. In extreme cases, siding replacement may be needed.

Home renovations are stressful even under the best of circumstances. Things like caulk failure can complicate your otherwise straightforward job; but, more knowledge about your property and your potential problems can help to assure a quality end product. If you have HardiePlank® siding, check it often for caulk failure and hire a well rated and well informed painter whenever you choose to re-paint.

Until next time,

Nancy

 

 

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

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

Home Contractors Interior Painting

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