My home has asbestos siding on it which is in EXCELLENT CONDITION. I really want/need to have my walls insulated but the thought of having the siding removed and quite likely, damaged, is upsetting. Inside walls are plaster/lathe and wall papered. Is there any way to safely, without damaging the siding, remove it to have cellulose blown? Are there any other methods/ways to have my walls insulated or should I just forget it. BTW, is there any insulative value to the asbestos shingles?