Q. I wrote to you recently about the gauge weight of 6-inch commercial gutters. As I write this, the crew is installing them, but another issue has arisen. All the work I mention is being done through ...

A. Typically the metal drip edge that is installed below the first course of shingle extends out enough to have the water drip straight down into the gutter. I have seen the drip edge installed wrong, ...

Q: When I had a new roof installed, the roofers lined up the shingles with the edge of the metal drip edge instead of overlapping the drip edge by one-quarter inch in the standard fashion. As a result ...