You are entitled for restoration to original condition
Smoke can damage both the exterior and interior of your home. Toxic smoke, soot, and ash can land on your roof, exterior walls, patio, and get into the into heating and air conditioning systems, crevices, attic, crawl spaces and can infiltrate interior drapes, linens and carpets.
Insurance adjusters, while they can be pleasant and friendly, first and foremost, represent the insurance companies interests – not the homeowners. Insurance adjuster estimates are very subjective.The difference between a low estimate of damage and a high one is often many thousands of dollars.
Under law, you are entitled to have your property restored to the condition it was in just prior to the loss. If the smoke damage is such that no amount of cleaning can really restore it to original condition then you can get replacement. Unfortunately the burden of proof is on you.