Laminate reinforced beam with tapered polymer layer
Laminated composite building component
Laminated door to withstand vandalism and method of manufacture
Laminated wall construction
Lapped hardboard panels and method
Leakproof roof and method of constructing same
Light weight vault wall
Light-weight, insulated, can-comprising construction member
Lightweight roofing system
Lightweight structural columns
Load bearing building component and wall assembly method
Load bearing floor or roof members
Load bearing wall
Load support structure
Load-bearing lightweight insulating panel building component
Low cost prefabricated housing construction system