I am looking at different cladding materials for LCAs and am trying to determine the lifespan of one which boasts a 50 year warranty. Would I assume that that means it has a 50 year lifespan? And thus it would be replaced once in a 60 year building life? I couldn’t find further information on the website for the material, so I’m not sure if there’s a default 60 year lifespan on EPDs unless otherwise mentioned, or if I should go off the warranty. Any and all thoughts are appreciated!
I have generally thought of warrantied life as a pretty suitable stand-in for technical lifespan. That doesn’t work for all materials (especially those that will get refreshed well ahead of the end of their technical life like interior finishes - [not sure many pink or avocado green sinks/toilets from the 1970s would have been kept until failure]) but it does for some.
That does mean it would be replaced 1 time during the In-Use phase of a building’s lifespan. Also, as the majority of EPDs are A1-A3 only (with some including A4/A5 or C1-C4) I am not used to seeing a lifespan defined - the EPD is just for 1 product.