OSB smart panel and T1-11 exterior siding
We are enthusiastically recommending the new drywall with fiberglas facing vs paper. Mold and mildew do not grow well on it, some say no mold or mildew will ever grow on it, but we are not 100% sure, so we say it is as good as you can get today and would not recommend anything else as far as drywall. It is installed the exact same way as conventional paper faced drywall and does cost a little bit more. You get what you pay for folks!
We are actually recommending the Home Depot ultra premium line made by Behr, with NG technology. It is absolutely self-priming, has incredible adhesion, good coverage, smooths out really nicely, and is actual waterproof grade material. At $32 a gallon, it is worth every penny. The exterior acrylic semi-gloss is the way to go on OSB with the cedar texture for the best weatherproofing that you can get in a house paint. The reason it waterproofs your exterior siding is because of the NG or nano-guard technology, which utilizes different sized molecules instead of just one, and the smaller molecules fill in-between the larger ones, which seals out the weather. Great stuff! Again, do your research, we will specify whatever you want outside and inside. Again, with OSB siding, it is essential to carefully paint all edges to keep moisture out, so when you cut it, seal it good with the Behr NG waterproof paint, applying 2 coats. If you do not want to use this grade of paint, you must prime and then apply 2 finish coats on all edges. We do not recommend doing it this way for reasons of time. We recommend Glidden Grabber exterior primer as being the best water based primer ever made where ever you need primer. Another great primer is zincer shellac based primer, but it is a hassle to clean up, and it bonds so strongly that it is tough to clean up if you spill on concrete or anything. This primer has the best adhesion of any primer we have ever seen, so it is great for going over dirty and oily surfaces, crayon markings etc. It cleans up with denatured alcohol.
The Lambert & Pratt and Benjamin Moore lines are great, but really any major manufacturer these days are all putting out a totally acceptable product. 100% acrylic is the way to go, do not go cheap on paint. There are new low-vapor paints that we actually recommend the most because they are much healthier to apply and to live with after you finish painting. We like the satin finish on drywall because it finishes off really nicely, wears and feels the best. We understand that many folks do not like that much shine, so go with what you like the best. Always use drywall sealer and not other primers on newly finished drywall, and finish off with whatever brand and sheen of paint that you like the best. Drywall primer is made to seal drywall, and is super cheap! Again, 100% acrylic is best, and the new low vapor products are worth the additional cost, especially if anyone is chemically sensitive in your family. It is good to know that the difference between interior and exterior paints, aside from the cost, is that exterior paints have additives in them that protect against fading from ultra violet sun rays. If you want better fade performance inside, you absolutely can use exterior paint inside. Finally, we encourage our customers to paint their own home if they want to save money, but there is a lot to learn regarding professional looking results, so we recommend having someone carefully go over those details and instruct you. We are available to do this, schedule permitting, and if you do a poor job painting, it will lower the value and curb appeal of your home significantly, so if you are not up to speed, we recommend you hire professionals. That being said, painters charge an arm and a leg these days, so it is worth getting up to speed and doing as much on your own as you possibly can.