What's wrong with PVC? And more...
I mean windows, not the environment.
Yes, I do care about the latter very much, support non-profits working to protect it, and do everything I can myself, including composting, buying organic, etc. :-)
And yes, I know that PVC manufacturing is not the best thing for it.
But that aside, I want to know about PVC performance. We went to a showroom this morning and looked at sevreal different products. Neither of us liked the looks of vinyl but the PVC windows looked just fine.
Right now, I am not looking to save money as much as finding a window that is less likely to rot in 20 years.
I like the looks of aluminum cladded wood but I am concerned about moisture getting behind the clad, as one of the expert PPs explained on another thread (about PT wood).
The PVC windows were Winsor Legend. The installer (highly recommended by my ID) who had already been to our house to measure the windows, said they'd fit right into our openings (we have wood windows with 4 9/16 jambs right now). They also carry Lincoln and some other brands but he has chosen Winsor Legend for us.
Are these windows any good?
The quoted ratings (with LoE II 240 glass) are as follows:
U-value=0.29, SHGC=0.16, CR=0.56, AL=0.22, VT 0.25. If I am reading the website correctly, DP=30 (it was not on the quote).
Except for VT, everything looks OK to me. Does it to you?
And I am not sure whether low VT is bad in this very sunny climate.
However, another "window guy" was adamant about PVC being a low performer and the possibility of it warping in 5 years.
Who is telling me the truth?