I’m surrounded by wildfires here in Montana. Drove one trailer off the mountain two days ago when a spot fire from the Hidden fire in Idaho crossed over into Montana. It resides at the head of the canyon closest to me and the local fire guys said it was time to get some things together just in case.
Some things just can’t be replaced.
Couple of years back when my B-I-L’s canyon was fixing to burn (west of Denver, CO) we were looking into a spray foam product.
Came in a big barrel and I can’t remember if it came directly from the barrel or you hooked a hose to it - but you sprayed the house with it and it made a protected fire coating a few inches thick. IIRC rain would was it away - in time.
Grab your good stuff, spray the house and hit the road. When you come home chip it away from doors and windows.
Something to look into.