Dear Glenn: My father listens to you all the time and said you just talked about a mold anti-microbial agent last week on your show. We had water come in from a storm that took a tarp off our in-progress roof, thus leaving us to do some remodeling. I can't seem to find what he was talking about on your site when I looked. He said it was much better to use than bleach mixtures because this agent also will kill the spores that mold releases when you try to kill it. Could you please let me know what this was that you were discussing and where I can find it?

Jocelyne, West Bloomfield

Dear Jocelyne: Your father is right. I get questions from all over the United States about mold. The products I mentioned were Concrobium (866-811-4148, concrobium.com) and Moldex by Envirocare (877-463-2628,

envirocarecorp.com). They will give the best results.

Dear Glenn: Last year, I painted ceilings with Benjamin Moore. It is a great covering paint. I had 3/4 of a can left, so last week I painted another ceiling with the remainder of the paint. When I opened the can, it had the typical paint smell. I painted the ceiling, the walls with a different paint, and the trim. The room was finished. Then I started to notice a strong odor like dead fish. It was the ceiling. I let the room air-out for several days, and when I closed the window the odor was still there. I called Benjamin Moore, related the problem and they quickly said there was bacteria in the paint because it wasn't closed properly. They only way to kill the bacteria was to wash the ceiling with bleach and water to kill it. I mixed a 50/50 solution, and washed the ceiling. Now I am left with a bleach smell. Over time, will it dissipate? I do not want to wash the ceiling fearing that the odor will return. Do you have any suggestions?

Gary, Livonia

Dear Gary: The bleach odor will diminish quickly. Next time, try Dutch Boy's new Refresh Paint. It is an interior paint with Arm & Hammer odor eliminating technology. Log onto dutch boy.com/refresh.

Dear Glenn: I read your recent article regarding concrete seal. We had our patio finished with stamped concrete roughly two years ago. This spring, it appeared to need a coat of sealer, as it was beginning to look weathered. It had been a particularly wet spring, and it rained a lot off and on for several days. I had to put off my scheduled waiting for a period of two days without rain before attempting to put on a seal. I did sweep and clean the concrete several times before applying the seal. I used Thompson's Water Seal Clear Multi Surface Waterproofer. I put on two coats with a roller. Although I must say the sealer has worked well, I am not happy with the appearance. The surface has a very dull look in a majority of the space with other smaller areas have more of a sheen. I would like to have a more glossy appearance as it shown when it was initially completed. Do you have any suggestions? I thought of a light steam cleaning in late fall and another cleaning in the spring with a new, glossy sealer.

Al, Waterford Township

Dear Al: Thompson's soaks in. It has done its job. What you need is a wet-look sealer. Contact OPW Decks (866-856-3325, opw decks.com). They will sell you what you need for next season.

Dear Glenn: I work at a historical society in Ohio. We are having a problem with mold growing on some objects in the Carriage House. There is no air conditioner in there. There is a large fan upstairs that keeps air circulating. There is a furnace for cold weather. We did have a commercial grade dehumidifier recently installed. We had been using portable de-humidifiers before. My question is, once we remove the pieces from the cabinets where there is mold and treat them, what should we use to clean the cabinets to inhibit mold from growing and what is safe to use with old artifacts circa 1800-1900s? There are paper and cloth, leather, metals and all kinds of different materials in these cabinets. Thanks for your help.

Michele, Ashland, Ohio

Dear Michele: I would contact Emergency Restoration (866-225-5371) in Troy. They specialize in old documents that fall into harm's way. It sounds like you are doing a lot of right things. Controlling humidity is vital when trying to control mold and mildew.