Polybutylene, commonly called Poly-B, is a flexible grey plumbing pipe widely installed from the 1980s to the mid-1990s. Considered economical at the time, it proved prone to becoming brittle and leaking over time.
Common causes
the degradation is thought to come notably from the material reacting to the chlorine and disinfectants in drinking water, which makes it brittle from the inside. The old fittings (particularly acetal ones) are recognized weak points, as is prolonged exposure to heat or UV during storage or installation.
Signs to watch for
flexible grey pipes, sometimes marked PB2110, often visible in the basement or near the water heater; crimped fittings; small leaks or repair marks; stains or water rings on the basement ceiling.
Why you should not ignore it
Poly-B failures can be sudden and cause significant water damage. Its presence is something many owners, buyers and insurers watch closely. Identifying the type of plumbing makes it possible to gauge its real implication for the building and its future maintenance.
What a professional assessment reveals
Polybutylene (Poly-B) plumbing is known for its failures, often at the fittings and without warning. An assessment confirms its presence, evaluates the condition of the connections and the scope of the risk, a decisive data point of a pre-purchase inspection and, at times, of an insurance file.
Vous soupconnez ce probleme dans un batiment ?
Une inspection le confirme, le documente et le chiffre, pour decider en connaissance de cause.
Inspection preachat Bilan de sante du batiment (BCA) Demander une soumission
