Roofs Without Separating Parapets in DC Area The vast majority of Washington DC low slope roofs have parapets between them, when they’re built in rows.

Stair-Step Flashing for Historic Roofs in DC This past week we looked at some examples of shingle roof and Pitch roof flashings. One of the

Today, we’re taking a look at a few photos of typical but interesting building assemblies. We’re going to look at valley flashing and stair step

Counterflashing for Pop-Up Roofs in Washington DC Here in the center of Washington dc, especially in the historic neighborhoods, there are a handful of different

Roof Parapet Coping Installation & Maintenance Tips This past week, we looked at examples and explained how aluminum sheet metal is used to cover parapets.

Key Features of a Ballasted Flat Roof System – Part II This past week, we looked at a ballasted built-up roof. This roof is covered

Understanding Ballasted Flat Roof Systems – Part I Flat roofs are a bit more modern than the more traditional sloped roofs. Sloped roofs work in

This past week we looked at duct joints on the exterior of rooftops where the sun is literally causing those joints to deteriorate and break

Roof HVAC and Duct Flashing Problems: Understanding Condensation Issues This past week, we talked about three distinct reasons why HVAC systems and mechanical equipment on

Roof HVAC and Duct Flashing Problems in DC Homes Here in the past, on our website, we’ve seen many examples of complicated duct and HVAC