Shipping Container: Installing Window Flashing

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Installing Window Flashing

Window and doors are typically installed using one of two approaches:

1. 1. Barrier system installation or:
   2. Managed moisture drainage system installation.

InSoFast prefers a managed moisture drainage system for flashing windows.  Engineered and redundit systems approach manages small amounts of water through or around the window openings, draining the water away from the interior. A Barrier system can be made to work too. Barrier systems rely on perfect installation techniques to deflect all moisture. Although this is not to be considered an endorsement or the best method to flash a intermodal window opening their may be better applications for your unique condition. Always flash your windows to the window manufacturer's instructions.

Why use a wood framed window buck for a Shipping Container.

We use wood bucks for strength and thermal properties.   Wood is a better insulator than steel and we want to reduce the chances of condensation. 

Water Managed Details

For the sill we incorporated a back dam that slopes and drains water away from the interior of the conex shipping container.

Air Sealing

All windows and doors should be air sealed around their entire perimeters expanding foam sealant.

For more in-depth information also review: Exterior Window Detailing Page 

Apply a peel and stick window flashing membrane.

Reinforcing the inside lower, corners of the window with an extra piece flashing membrane.  Follow the window manufacturer’s installation guidelines and caulk the window opening leaving the sill open for drainage.

Shim or lift the window off the sill to allow for moisture to drain away. Make sure your window is plumb and level before you mechanically attach it (screw it in) to the wood frame.

Check to ensure your window is properly sealed and that it will open and close before you proceeds.

The final step is to add the flashing tape around the window.

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