One example of an old worn brick chimney

The chimney the pictures below is probably well over a hundred years old and looks as if it’s never been repaired or pointed.

The mortar joints are deteriorated so bad that the bricks themselves are almost loose.

Also, you can see this chimney has no spark arrestor or cap. So essentially rain water or precipitation will just go straight down inside of the inside of the house and there’s nothing to keep rodents out such as a rodent guard, and leaving the top flue is missing.

The remarkable part is that if you know Capitol Hill and DC houses well then you know that this is actually not uncommon. This particular chimney is overdue for some restoration though at this point.

Wood grain left in a concrete wall

The formboards used to build the wall in the photo below left a natural wood grain, just like the original historic formboards did about 50 to 100 years ago.

Concrete is poured into a form in a wet consistency similar to a slushy wet mud. The concrete hardens quickly and within a few days to about a month the country forms can be removed from the new concrete construction.

In modern times we have several materials we use to build our form and walls, including: plywood, melamine veneers, PVC, and more. But in the old days, in historic construction wood planks were used.

This building wall, shown above was built to resemble the Historic style and methods of construction, but in reality there is a sauna to that indicates the Historic effect is actually artificial and not actually historic:

1. If you look very closely you can see there are round spots in the concrete of the wall face that are approximately the size of a quarter or half dollar, about 1.25 inches in diameter. These spots look like a snap ties used in modern forms, not used in historic forms. The snap ties have a plastic collar that prevents the form sides from being squished together.

2. The building above the base wall shown is a high rise building. It’s very unlikely that historic foundation would have been built to the standards required for a modern high rise building.

Sawtooth skylight

This building has a good example of a sawtooth skylight.

Here is a look from the inside.

The sawtooth style layout allows for a large roof of a factory, warehouse, or gathering space to be installed without the use of modern flat roofing products. This type of roof allows for a large area of covering without the need for interior drainage systems and large span structural framing elements.

This type of roof is very similiar to a clerestory roof.

Clerestory roofs have been used in building architecture going all the way back to Greek and Roman architecture. Sawtooth and clerestory roof systems allows for passive fenestration and increased ventilation.

This type roof was commonly built in the large factory and warehouses in the 19th century and has recently made a resurgence with an increased emphasis on green construction which values the passive airflow and luminance.