Door Repair, Door Replacement

What you are about to read affects all wood doors, fiberglass doors, steel with wood edge, and steel clad doors.

EVERY THING YOU SHOULD KNOW BEFORE BUYING A DOOR!

Preserving Craftmanship

Exposer Coefficient

You can calculate how much overhang you need by the following a simple formula: Y=1/2X (in most cases). For example, if the measurement from the base of your door to the bottom of your overhang is ten feet, the overhang should be a minimum of five feet deep.

Other Variables

The Exposure coefficient may need to be modified based on the climate and the direction your door faces. In some situations, the exposure can be too extreme for a door - regardless the overhang.

WIthout the correct overhangs, doors with a southern, southwestern, southeasternor western exposure will require frequent maintenance. They're also susceptible to preformance problems, such as rapid finish deterioration, color fading, wood spliting, warping, moulding shrinkage, wood joint seperation and water penetration between the mouldings, panels, and glass. Improperly protected doors with a high gloss and dark stain or paint colors are also susceptible to large temperature differences (e.g., the door's surface is 30 degrees higher than the ambient temperature) and temperature jumps (e.g., hot in the day, and cold at night).

Doors used in combination with storm door can cause warping, splitting or cracking due to buildup between the two doors.