This is a 200mb file so plan on it taking some time if you decide to download. The movie is about 17 minutes long at 640X480 and is unedited. The movie will stream immediately in a new window when you click and requires the Quicktime plugin.
Matt
http://mcdsconstruction.org/wp-content/uploads/2008/12/MCDSLandslide3.mp4
The grass roof on top of the new Admin building is starting to take shape. There are many layers of material on top of the roof which serve to both protect the building and enable the grass to take root.
The material has to get on the roof. This is the tried and true one shovel at a time approach.


Once on the roof a bucket is used to carry the gravel to the installation.

The many layers of the installation are set. The gravel helps stabilize the layers.



This is a typical garden roof assembly. The same type will be installed on the Administration building. Besides being aesthetically pleasing, a green roof can provide numerous environmental, technical and owner benefits. To read more about the components of a green roof click here.

The first thing to go down is the mudsill and wall plating. Pressure treated Douglas Fur is used in areas where wood will make contact with the concrete. The treated 2×4 (below) is attached to the slab with anchor bolts that are embedded in the concrete slab. Interior shear walls must be held down with anchor bolts.


The non-shear wall plating (above) is attached with nails driven into the concrete about 1 1/2 inches.You can see the room layouts forming here. Notice how the plumbing, electrical, and drain piping is within the wall layout. The piping and conduits are placed with great accuracy by the plumbers and electricians. A small miscalculation could cause big problems after the concrete has been poured and hardened. 