I'd start by redirecting that downspout away from the patio roof. Overall I think it looks like a wonderful room that with the addition of a good quality roof and some windows all around would be something that you could enjoy year round. Unless that roof leaks, the roof framing should be OK, and the side framing is what you say is rotting. A "three season" room per se might be out of your budget, but you could still have a contractor come in and replace the rotted wood and install some insulated windows. Once you have some good side framing, then look to a peaked roof that drains water and snowfall away from your foundation. Finally, I'd replace that slider with some pretty French doors. I love that room and definitely wouldn't want to tear it down. I think you have a diamond in the rough. Short Story: Years ago we bought a house in Colorado that had an enclosed patio. The workmanship on it was very poor, but we figured we could tidy it up and use it. We found that the previous owner had done the work himself. None of the electrical outlets were live. The patio had a poured concrete foundation, but the roof overhung it by 24", so he laid common wood planks on the bare earth all the way around the slab and constructed the walls on top of them, leaving no overhang for the soffits. To hide the planks, he glued astroturf on the floor of the room. The first winter we were there, every time it rained, the water seeped into the room and flowed across the floor. The floor froze and frost formed on the windows. The windows he used were secondhand and for some reason he hung them upside down, so water gathered at the sash and poured down the inside of the room. Everything about it was done wrong and it was unusable. We hired a contractor to come in and fix everything that was wrong. He eventually had to rebuild the entire structure, and it cost us about 10k. But it was well worth it because it was beautiful. Even without heating, it stayed temperate in there year round due to the sun coming in the large windows. My plants loved it and they grew and flourished at a phenominal rate. I had an angel wing begonia that was 4' across and constantly covered with thousands of bloom clusters. (Side note: At the Denver home and garden show that year my husband and I observed that an angel wing begonia had a lovely blue ribbon, hanging on it that said "BEST IN SHOW". It was about 18" around and had one or two bloom clusters on each branch. We just looked at each other and burst out laughing.) The original room only had an aluminum storm door and it was totally unsuitable for the Colorado weather. We replaced it with a good quality insulated exterior door. there were no drafts in the room once it was finished and we could open the slider to the main house and smell the flowers and the moist earth. So that's my little story, except to add that when we sold the house, the buyer came in full price because she said the patio room was...

I live in FL and I see a lot of garage-door sized screen doors. They slide back in sections to be out of the way when cars need to come into the garage, or can cover the whole garage front. Would something like that be possible for your archways? Alternatively, could you have someone build an arched frame for a screen door in the center section? It could open in two pieces and be hinged to lay all the way back against the outside or inside of the porch. The third alternative is to have the whole arch area screened and put custom-built screen doors below. Put in two so they meet in the center. A good aluminum company should be able to do something like that. If not, maybe check with a garage door company?

We have the Infinity all Ultrex sliding french. It is a total frankinstall disaster. I could have done a better job myself. The door isn't plumbed nor square. The installer has to replace the entire door, redo our cedar lap siding they ruined, and they also broke our limestone sil and scratched our brazilian cherry floor. I'm concerned they will screw up something else when they come back in May, and we are worried the botched install caused water to get into and damage the surrounding window frames. As for your situation, first, make sure they used the right screen for the door, lol. If so, please clarify what you are seeing from the exterior. Are you having any problems operating the door?

On the sliding screen door for my older patio door I need to replace the fiberglass screen. The first step however is to remove the old fiberlass screening which seems to be (nicely) held in place by a thin bead of adhesive/caulking applied in the groove where the spline would normally be. Once I get the adhesive out I imagine they'll be no problem installing a new screen using new splinbe in the groove as usual. I hope/assume I can just peel the old adhesive out by poking in the groove and the pulling the old screen out etc. Any one have some advice - want to make sure I can do this properly before I start ripping the old screen out. Many thanks.