Arctic Series

Structural Reinforcement

Sometimes we are required to add extra support to strengthen large windows. We use a 1 1/8” LVL timberstrand (laminated veneer lumber) this is fastened between the 2 windows for increased stability. This is a good idea for large windows, especially when facing high winds.

LVL can be used vertically or horizontally to support windows above or beside. The timberstrand is covered with a 1 1/8” mullion that is the same colour as the exterior or interior of the window. Once applied the LVL is fully concealed inside the window.

LVL is required above any patio door greater than 6’ that has a transom mulled above it. The same goes for double doors, all double doors require an LVL when a transom is mulled above.