Raising the Roof

Source

This poster was part of "Portland Loves Cambodia", a benefit show aimed at raising funds for victims of human trafficking in Cambodia.

For donations that contribute towards this cause, please go to:
www.transitionsglobal.org

 This shows the concrete block added on top of the party wall brick to accommodate the rise in height relative to the neighboring buildings.

The cavities show the location of the original roof joists and how much the roof had to slope.

Although considered a “flat” roof, row houses typically have “built-up” roofing which requires up to a 20% slope in order to drain properly.

The new roof is a membrane system where just the feathering of the insulation layer accommodates the necessary slope for run-off.