Most that I have done have been the black fiberglass. It's cheapy & easier to install, however not as durable. al

We had a screen porch when we moved in, one of the reasons for buying the house. I wish I had been able to spend a few days in the house before buying it for that reason, as it did increase the cost of the house compared to our neighbors, since it was "extra living space." We had a screen porch at the house we were leaving, so wanted one in our next house. Not all screen porches are created equally and be sure you have adequate circulation. The way our house was built/porch addition, the air was trapped and it was always hot. We used two floor fans and 2 ceiling fans and it was still hot and muggy (in the south). I had no idea there was that big difference in the location of porches and we ended up never using it, plus it blocked light to the interior which we so needed. A tornado one brisk spring did a great deal of damage to our porch, garden, roof, cars, etc. We decided when they tore the screen porch down, that we would not have a screen porch again at this house. I do love them when they work, but ours did not, so just make sure that all your weep holes and venting holes are not directed at you when you are outside, and that you have good air circulation. We added a pergola over what was our screen porch, left the concrete intact. We are able to have all-weather furniture and two swings and use it as often or more often than the cold screen porch in fall/winter, the hot screen porch in spring/summer. I do love screen porches but not all houses are located so that they work well. Just make sure of that before building. Having said all that,we built a small screen porch near our shop which is part of our house and we get great air circulation there and although it is not very large, only accommodates 4-5 people and the dog, we do enjoy it. I am saying, Just make sure the location of any screen porch has good air circulation and is not getting all the hot air from your attic in summer and cold air in winter.

An interesting product...some of you may not know what I'm talking about but we have no see ums in Illinois. Especially on a lake. Nasty little biting bugs. Here is a product that has a smaller size to keep out those pesky critters! I wonder how much the visibility is actually reduced. http://www.wholesalescreensandglass.com/Phifer-NoSeeUm-Aluminum-Insect-Screen.html

We had somewhat of the same problem. We decided just to put siding inside and out on that section. Besides it gave us a little privacy from the neighbors. Sorry my pictures aren’t very good, but it might give you some idea.