millworkman: Proper installation is a necessity for a great many things. Poorly installed PVC trim can indeed mask other problems, but I have a hard time seeing that as a reason for not using it. Poorly installed wood trim can also mask problems as it rots in places hard to see from the outside. tlbean2004: Do not put PVC or anything else over wood. All that does is create a place for water to collect between two different materials. PVC is designed to be used alone as a replacement for wood. Will you ever have to replace it? Never is a very long time, but given correct installation, PVC trim will last much longer than wood. If your rot problems, however, were the result of improperly installed drip edge, etc., you may get good long life with wood once the problems are corrected. Rot resistant wood such as cedar or pressure treated is a good idea, but proper priming of all surfaces before installation is also very important.

We currently do have installed a 2' piece of flat metal flashing about 1.5 inches wide (deep) to extend out underneath the shingles in those 2 areas but the stains are still appearing the fascia. What's odd is that one side is 'cleaner' than the other. A roofer I had come out, thinks it's just the way the wind pushes the rain against the fascia. Thus he was reluctant to add an even deeper piece of flashing because he thought the wind would just push & roll the water back underneath the extension & smack it on the fascia again. Thoughts?

Here's another photo

So just had my pitched roof completed. I live in a raised ranch, with attached flat roof garage. The remaining problem is with the flat roof 33 x 23 with an ever so slight pitch on either side for run off. However over the years the edge flashing has desegregate and curled up and caused some water pools and damage in 3 or 4 places. After inspecting a few of them closely, the bulk of the rot is in the fascia and the seals on the drip edging. So the roofer gave me a paint/sealant for the majority of the center section of the roof. He said after I replace the fascia where needed, he would come back and hot torch a three foot strip all around the outer borders with a new drip edge. I have since gotten a few other strong opinions which are all different. Here are a few examples: No hot torch! Just go with Peel and Stick. (However I was also told that my pitch isn’t high enough for that to work effectively?).Another suggests replacing the whole roof with membrane material. He also said he could replace sections needed with membrane. I defiantly don’t like that advise! So lets hear what you have to say! Please comment. PS If I were to consider a new roof, whatever it may be. I would also have to seriously consider building a second floor with a conventional pitched roof, If I am going to go thru the effort!