Gutter guards

I have a standard shingle roof. I also have those Gutter Helmet gutter guards on. Can a metal roof be put on with these guards still being used?

Thank you for bringing us into the mix. Any gutter guard can grow moss or algae on it. That's because spores in the moss or algae from the entire roof collect in rainwater-- and it all flows down onto the gutter guard. From our perspective, gutter guards take the most "spore abuse". If the condition develops after MasterShield is installed, we've got a way for the homeowner to clean off our stainless steel filter. Most of the time, however, you can see the signs of moss, lichen or algae on a roof, it's not something that develops after you purchase a gutter guard, the condition has been their all along. To avoid the issue from occurring, we suggest installing a small copper strip (copper works better and longer than zinc) on the roof a few feet above any gutter guard. It will kill the spores in the water before they wash onto the system (you may want a series of them up your roof about every 15 feet. It will keep your roof moss free and you won't have to invest in copper granules in your shingles). We also suggest installing the gutter guard with the pitch of the roof so that debris is less likely to get trapped on it (like a shelf). You don't want debris to create an environment for moss to grow. As it relates to overshooting, if our system is installed to manufacturer specifications, you may occasionally see some overshoot in roof valleys. This is a problem that plagues all gutter guards because, in these locations, water gains volume, depth and velocity. In fact, on many homes a regular gutter has issues with overshoot in these locations. We're quite upfront about this, we've even got a YouTube video (http://bit.ly/KqMQkg) discussing the issue. So long as water comes off a straight run, you should see no overshooting, even in a summer thunderstorm. We have a few options to work with as it relates to increasing the volume of water that can get into a gutter from an inside corner. With any gutter guard, you walk a fine line in the corners between taking in water and trapping debris. Since we cannot see the conditions at every home, we have to rely on independent installers to make a determination as to how to best address the situation. If you're considering a shingle style metal roof, there are systems that MasterShield works seamlessly with an others where it's best to install the product at the time of roof installation.

how do you reattach gutter guards after a steel roof is installed.

Yes and no. Depends on the new roof also. I am not a huge fan of those units and would recommend ditching the reverse curl system in lieu of a flat (top mounted) system. What type of roof were you going with?

For applications where we are concerned about volume and overshoot on the gutters, we use a system call RainDrop. It keeps out all the big debris and can handle whatever water you can dump on it.