Get the underlayment off and replace any bad spots before retiling. Photo by A. E. Araiza/Arizona Daily Star

Q: I have a 30-year-old concrete tile roof that needs replacing. After taking off the tile, the roofers want to put new peel-and-stick roofing on top of the old underlayment.Β Then they’d put the old tiles back on. Is it OK to put the new peel-and-stick on the old underlayment?

A:Β Your best option is to take the old underlayment off and get down to the deck to find out if you have any other problems with your roof. Maybe some wood in the deck needs replacing. Then you can put on the new underlayment and put the old tiles back. You might also go up in your attic right now to look at the deck from the underside so that you can see if there are other problems going on β€” like leaks or mold or rotting wood.

For more do-it-yourself tips, go to rosieonthehouse.com. An Arizona home building and remodeling industry expert for 25 years, Rosie Romero is the host of the syndicated Saturday morning “Rosie on the House” radio program, heard locally from 8-11 a.m. on KNST-AM (790) in Tucson and KGVY-AM (1080) and -FM (100.7) in Green Valley. Call 888-767-4348.


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