09/02/2026
Where a roof meets a sidewall, properly installed step flashing is critical for directing water away from the home. It’s also required under Minnesota Residential Code R903.2.1.
Without it, water can work its way behind the siding and start leaking into the roof system, damaging the decking, walls, insulation, framing and that is exactly what happened here.
This is why you hire a licensed contractor who understands the building code and follows it.
The cheapest contractor is always the cheapest for a reason.
Build it right the first time, 🏠 or pay more to fix it later. 💁