When we buy a house ho to take care of it for next 40 to 50 years ?, how to make it beautiful for years ?

-mean in whitewash pant etc. how to protect your home from damages , how to make it beautiful for years ?Always have the prep work done thoroughly. Scrape and sand paint rather than waterblast. Get references on all contractors you hire and ask what products they will use so you can research them online. Have yearly inspections for termites and wood rot.don't let water get inside - keep the roof, windows etc. in OK condition
When it is time to replace the roof get a permanent one. When you need new siding get the best.

so on...