Packaged AC units are one type of HVAC equipment system configuration. Packaged AC units are different than other systems inother systems in that package systems include the air handler, condenser, evaporator and heat pump all-in-one contained unit. These students offer good solutions for what Washington… Read More »Packaged AC Units
Parapets are short walls above a rooftop. There are a few good reasons why parapets walls are used. The roof membrane generally is required to be installed up the parapet wall and often terminsted with a roof coping. There are a few good reasons why… Read More »Parapet walls
Penetrations in building assemblies are essentially holes that have been made for pipes, wires, or other elements to pass through. For example, when a pipe or cable passes through a wall, foundation, roof, floor or ceiling those holes end oles and items passing through the… Read More »Penetration (building assembly)
Pigeonhole brick wall corner are common in the historic neighborhoods of Washington DC such as Capitol Hill, Dupont Circle and Georgetown. These types of outside corners are generally found at found at oblique angles, where walls join at angles greater than 90°. Brick walls,… Read More »Pigeonhole brick wall corners
A pile driver is used to drill or auger or horizontally displace Earth latterly in a deep hole in the ground where concrete or similar high strength caissons or piles are installed to support building foundations. The image below shows an example of a Caterpillar… Read More »Pile Driver
Plank ladder scaffolds are one of the many numerous ways to access building facades for repair and maintenance work. This is one of the lightest options, but it is also one of the most restrictive methods. Some common alternative options include the following vertical access… Read More »Plank Ladder Scaffolds