I notice the siding and trim on my house is in urgent need of paint, as there are bare areas of wood where the paint is flaking off, but due to uncertainties with Coronavirus, I need to hold off on buying thousands of dollars worth of paint. I do, however, have lots of KILZ 2 primer leftover from another job.
Can I paint my house using just primer, to protect the house during this harsh Southwest summer, then add the actual exterior paint in the winter? Will rain or sun, etc. have some negative affect on the primer in the meantime? Will the primer protect the wood?