Too late to help now but maybe someone else will benefit. I gel stained my Pella fiberglass entry door 6.5 years ago and it looked great! Used Minwax gel stain and their spar varnish, as directed by Pella. However, it did not stand up to weather at all. It chipped and had to be varnished again every 6 months. This Spring it chipped all the way through to the fiberglass and pulled stain with it! Believe me, I did everything properly. My door faces south east and has no roof. But a neighbor whose fiberglass door faces north had the same trouble - he used the same products as I. My neighbor got disgusted and stripped his down to fiberglass and restained it with Sikkens products 3 years ago. No trouble since. Sikkens makes a Door and Window stain that does not require varnish over top. Fortunately for me, just before I started stripping about 36 layers of varnish off my door, it delaminated! Pella brought me a new unfinished slab (under warranty) and I'm using Sikkens to stain it. I've been told the varnish is the trouble. It's like putting a sheet of glass against the door, trapping the heat. Plus it isn't flexible enough to expand and contract. If I put up a storm door to protect it, the problem would've been worse due to trapped heat. Sikkens is specifically made for fiberglass doors. I don't have any vested interests in the company but thought I'd try to help the next guy... Here is a link that might be useful: Sikkens Door and Window stain

Here's a follow up video now - with Before/After split screen. There is a huge difference. So far we have only done spot acid treatment of the stains, and power wash to it, but it is significantly better overall. It's so much better than it was, we're hoping this will pass without any issues. I think if we had to go to court, a judge would rule that we improved the appearance more than enough to compensate for any perceived "damage". We will try to get him to sign off on it before trying anything else. Here is a link that might be useful: Before/After Powerwash Video

Does anyone have any advice on cleaning, staining, sealing a cedar privacy fence. We put up the fence about 5 years ago. When we put it up we semi-stained it. It has been looking bad the past couple years. A lot of faded & green color I assume is algae although it gets lots of sun. Also the birds have left their mark. We want to clean it & stain/seal it. Can a pressure washer be used to clean it? What kind of cleaner should we use. And what is a good stain/seal? We originally stained it a cedar color. Would we have to stain the same color again. Thanks for any help. Karen

Thanks for responding. It is a non-issue at this point. DH has "solved" the problem. He wanted a bigger box and I wanted one with a lid. He brought home a huge pan and a dog house to sit it in. I am horrified, but I would rather laugh than cry. The thing is actually set up in the bathroom. I have to climb around it to get to the shower. When I tell you this is the biggest box I have ever seen, that is an understatement. It is an actual dog house (2 pc) for small dog meant for outside use. DD is teasing that we should light it with Christmas lights and a tree. The funniest thing was one of the cats was sitting on the roof of the house last night. I was thinking that could be my Christmas card. 14 days to go and still no card....