Suggestion for making a 30 year old home more efficient while roof and siding are off
We live in Columbus, Ohio and have a home built in 1986 with the following floors. Floorplans and photo are attached as an FYI.
– Basement: 740sf finished, 250sf crawl space
– 1st floor: 1000sf
– 2nd floor: 800sf
We have siding (90%) and brick (10%) exterior. We plan to replace the roof (including sheeting), siding, and doors soon along with many other updates including replacing the wood burning fireplace with a direct vent and replacing all of the fans in our bathrooms. The windows are vinyl, double pain — we plan to keep them. We have central air with a gas furnace and AC that are both about 12 years old. We have a radon system in the basement.
While the exterior of our home (roof, walls) is exposed we would like to make some changes to our home to make it more energy efficient. I found the article on this site very helpful: https://www.greenbuildingadvisor.com/blogs/dept/musings/just-two-minisplits-heat-and-cool-whole-house. I realize we can’t do anything that extensive, but hope to be able to make our house much more efficient and green than it currently is.
I would really appreciate your advice regarding the items below and/or any other suggestions you have that are not too expensive.
Some things we are considering and related questions:
1. Replacing our existing furnace and AC with a ductless minisplit with three lines (one unity for each floor). Would a unit on each floor be sufficient?
2. Replacing the insulation in our walls while the siding is off? What type is best? I was planning on using Tyvek over the insulation until I started reading some things on your site. Sounds like that is a bad idea. Is there something else we should wrap the house in before putting the siding on?
3. Replacing the insulation in our attic while the roof is off. What kind should we use?
4. What type of patio door should we look for?
5. What type of entry door should we look for?
6. If our house is better sealed, I’m wondering about the air quality and considering HRV, ERV, or standard fans in the bathrooms to improve airflow.
7. Is there anything else you’d recommend?
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