We bought 34 Sierra Pacific windows in 1997. Within the last 2 years 9 have fogged. Sierra Pacific is saying they were only warrantied for 10 years. Anybody having the same problem?

this is the product where the 'devil is in the details' stuff. Make sure that you are being quoted the extruded alum. stuff and not the rolled form products. Roll form, for the most part, is 'weaker' thus cheaper. Get a copy, read and understand their warranty. Not a fan of the SP stuff. If this is a paint grade interior project, might look at Marvin Integrity stuff. IMO SP is a lower end builders grade product. I am in the Los Angeles area for what is is worth

I'll let you know in a couple of weeks I just purchased SP for the front (historic view) of my home. Candidly - if they fail 5 years earlier on average, I make out significantly better from an expense standpoint. The first quote I had from Pella and Marvin crested $40K (not a lot from some perspective, enough to make me reconsider life) I shopped and researched and settled on SP - backed by a 20 year warranty for any wood rot on their clad window and backed by a very reputable and financially strong local dealer. I finally through caution to the wind and went with builder grade rear facing windows and could not be happier - they are architecturally consistent and backed by a so so warranty - at the price installed ($4000 for 11 windows) I am thrilled with the cost benefit ratio. The SP are significantly more - but by mixing the two brands I saved $30K and can do it all again in 15 years if need be. Good luck sounds like a fun project.

@bitterrootjohn I am wondering how it went with finishing the Sierra Pacific casement windows. Our painters just finished and ran into trouble. Although they protected/taped right up to the trim, the window trim itself is not tightly sealed to the window and the stain/lacquer dripped behind the finish trim that is painted black. It seems like Sierra Pacific would take some responsibility but right now it is all on our shoulders.