Replacement windows, siding or both?
We have a 1993 vintage small ranch modular home in New England. Climate zone 6A. The windows (good quality Anderson double pain for then) are beginning to get very drafty, in fact the house does not seem to retain heat in winter (or stay cool in summer) as well as it used to. (Or we are getting old and thin blooded) We have vinyl siding with, I assume, foam board underneath. I do not think Tyvec wrap was used at that time. House basically sits in an open field and is in the sun/wind.
1. Does foam board have a life expectancy? Become less efficient over time?
2. Hubby wants to replace just a couple of drafty windows. We are using thermal blinds on a couple which helps. Would that be penny wise?
3. Siding looks OK from a curb view (white) but there are some gaps, corners are not staying put etc. Should we think about replacing /upgrading for efficiency? If so replace insulation board and add wrap?
4. Would an energy audit be helpful? We have a new furnace (forced hot water heat) and mini split air conditioning and have insulated basement. Most of the audits come with a company that wants to sell products.
5. If we decide to redo siding and insulation, should we redo windows….all or just leaky ones in rooms we use most often? Just have them resealed?
Thanks for any information or suggestions. We are not rich, but do not mind making good investments in the house.
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