How-To Determine Plumb, Level and Square Therma-Tru provides a simple tutorial on how to check if a door unit is plumb, (true vertical alignment of the...
How-To Replace Corner Pads Corner seal pads complete the seal between the sill cap, bottom sweep and weatherstrip to help block potential pathways where...
How-To Maintain a Fiberglass Door Therma-Tru provides a tutorial about inspecting certain areas on and around the fiberglass door unit. Inspecting the door unit does...
How-To Use Multi-point Locking System Quick Connection Tool MPLS is the Multi-Point Locking System which secures the door to the frame or an astragal at multiple points. This...
How-To Perform a String Test Therma-Tru explains how to perform a string test along the edge of the door. This test will help to determine...