My first visit to this forum was a few years ago, seeking information on effective gutter systems. I have a mansard roof, so conventional screens are useless since the roofline above the gutters is nearly vertical. At that time I found mostly condemnations and no positive testimonials. In the summer of 2007 it was time for new gutters and fascia, so after finding a reputable roofer I brought up the dreaded topic of protection from leaves, as I have large ash and maple trees surrounding the house. My roofer was somewhat reluctant to stake his reputation on anybody's product, but felt RainFlow's product was worth a try, based on endorsements from other roofers and trade publications.

After 18 months, including two fall seasons I couldn't be happier. No more gutter overflows into the wife's flowerbeds and no more getting rained upon with wet smelly leaves during my monthly cleanings with the leaf blower. Unlike many other brands, Rainflow sells their product to anyone through a network of roofing product wholesalers, so pricing is very reasonable. I have no financial interest in the product. I'd just like to pass along my own positive experience hoping it may be beneficial to someone in the future.

Bill

Here is a link that might be useful: RainFlow USA