"Roofing Companies Near Me" Making Mistakes - Part 1

19 Sept 2025 · 2 min

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1:43

In this segment of a three‑part series, a homeowner narrator warns viewers about three common roofing installation errors that can lead to water intrusion and rot. The discussion, featuring a licensed builder (the homeowner’s son) and a roofer, focuses on the correct order and placement of critical components: the metal drip edge must be installed first, the ice‑and‑water (underlayment) membrane must lap over the drip edge, and the gable‑end flashing must be properly detailed to shed wind‑driven rain. The speakers illustrate what a mis‑installed roof looks like, explain the consequences of water getting behind shingles, and emphasize that homeowners should watch for these mistakes to demand corrections from contractors.

Chapters

You're paying good money for a new roof. Don't let your roofer make these mistakes. These mistakes were made after my son, who is a licensed builder, went over specifically what he expected, and yet it wasn't done right. And so he's able to make them come back and redo it, but you're going to want to watch out for these 3 mistakes. They'll be in 3 different parts.
Problem number 1: So one of the most important things with a roof is following the shingle effect, and that means the very first piece you put on needs to be this drip edge here. And this is supposed to be under your ice and water right here.
So the ice and water is supposed to go over the top of that drip edge, that metal drip edge?
Yeah, the drip edge would be your first item you put on. Then your ice and water laps over that. So if any water gets behind, it's always lapping over and out.
Otherwise, if the water gets— if up here above somehow water gets under the shingles here, it's going to hit, hit at the end and possibly go in and start rot on the sheathing.
Yep. And your gable ends go over like you see it here because this is for wind-driven rain. If potential of any rain to get in this side, it comes up and over on—
so where you are right now was done correctly, right?
Here's correct, this is wrong.
Yeah, the ice and water shield, the black underlay, has to go over the top of this.