Polybutylene pipe, or Poly-b as it's often called, is a grey plastic pipe that was manufactured from the late '70s until the late '90s and used heavily in residential plumbing systems during that time.
Polybutylene Piping in Your Home
If you own a home built between 1975 and 1996, it may contain polybutylene piping. These plastic pipes are often gray, but they can also be white, black, or blue.
Polybutylene pipes are liable to fail at any moment without prior signs. Although Polybutylene pipes can last between 10 and 15 years, its corrosion and degradation can be accelerated by water chlorination.
For those who aren't aware, polybutylene pipe was commonly installed in houses from the mid-70's to the mid-90's. However, due to problems with leaking pipe and fittings, this pipe material was subsequently banned for use in construction.
Is Poly-B the same as PEX? No, they are actually very different types of piping. To discuss, poly-b is a type of plastic piping made from polybutylene, while PEX (cross-linked polyethylene) is a newer and more durable option that has been gaining in popularity over the past few years.
If you have polybutylene pipes, it's best to replace them with PEX pipe, but if a repipe is not an option, use SharkBite Max polybutylene adapters to repair your pipes.
Longevity. In the right conditions, PVC pipes can last upwards of 70 years. Both ABS and PEX pipes have about 40-50 years of life.
Selling a house with polybutylene pipes can be challenging due to the known issues and potential risks associated with these outdated plumbing systems. Polybutylene pipes, used in residential construction from the 1970s to the mid-1990s, have a history of failure, causing leaks and significant water damage.
The cost to replace polybutylene pipes runs between $300 and $5,100, with the average homeowner spending $1,200 on polybutylene pipe replacement. Polybutylene pipes are no longer used in new construction because they are prone to defects, leaks, and pipe bursts.
It is recommended that if a home has polybutylene pipes, the entire plumbing system should be replaced immediately, as a costly leak can happen at any time, without warning, and cause large-scale damage.
In general, insurance companies do not provide coverage within homeowners insurance policies for polybutylene pipes. They are simply too much of a liability as they are easily damaged and will break down, burst, and damage the home.
Polybutylene pipes are at the end of their useful life. According to studies by Fannie Mae and HUD, domestic water supply systems in multifamily buildings reach the end of their useful life after 30 – 50 years.
Securing financial assistance for Poly B replacement often involves meeting specific criteria, such as income caps or property assessments. Homeowners will need to gear up with the necessary paperwork, which could include proof of income, property details, and quotes for the plumbing work required.
Unfortunately, Polybutylene pipes cannot be repaired or exchanged. Its production has been stopped over a decade ago. There are better options available that you can use instead of unreliable Polybutylene pipes. Most American and Canadian building codes have ruled out Polybutylene pipes for new and existing buildings.
Fittings with a gray collar work with polybutylene pipe. If it has a white collar, the fitting works with PVC pipe and is compatible with schedule 40, 80 and 120 PVC. SharkBite couplings with a tan collar are designed to work with CTS pipes like PEX, copper, CPVC, PE-RT or (CTS SDR-9) SDR-9 HDPE tubing.
Polybutylene (Poly B) pipes are considered problematic due to their susceptibility to deterioration and failure over time, especially when exposed to high temperatures, chlorine, and improper installation. These factors can lead to cracking, leaks, and potential water damage in homes.
The cost to repipe a 2000 sq ft house is between $3,500-$15,000 on average. Some variables that will affect the total cost of the job are the size of the house, the ease of access to the pipes, the material that is used, and if any other plumbing work needs to be done.
Replacing your polybutylene pipes with copper, PVC, or PEX pipes is the best way to safeguard against leaks and water damage.
Polybutylene pipes were banned from new construction projects after 1995, but if they're already in your home, there is no requirement to remove them. This is important to know if you decide to purchase a home that was built between 1978 and 1995.
If you are a seller, you should disclose all known conditions that the buyers need to know about the property including the likelihood of leaky pipes. If you decide to replace Polybutylene pipes in your home, that is good. But remember that many homebuyers are willing to take over risks that are fully disclosed.
Leaks are inevitable with any plumbing system; however, polybutylene degrades faster than the rest of the approved piping list and in some areas the deterioration is significantly quicker. The lifespan of polybutylene piping is 15 years.
No single pipe/tubing system used in the US has been 100% problem free, and PEX is no exception. Some of the disadvantages of PEX include: It cannot be used outside. It cannot be recycled.
Ability to handle pressure: PVC can withstand high water pressure, which makes it an excellent choice for the main supply line in your home. Ease of use: Compared to metal pipes, PVC is extremely lightweight. As a result, it is easy to transport and work with.
PEX plumbing is better than traditional materials like copper or galvanized steel because it's flexible, resistant to corrosion and scale buildup, less prone to leaks, energy-efficient, and cost-effective.