6 Doors, Windows, and Skylights Flashcards
What are the primary functions of doors, windows, and skylights?
They must be durable yet movable, let in light yet keep out rain, admit guests but deny drafts.
What is the R-value in relation to window performance?
The R-value is the ability of a material to resist heat flow through it. Higher R-values indicate better insulation.
What factors should be considered when ordering doors?
- Interior versus exterior
- Prehung vs. unframed
- Width
- Height
- Jambs
- Swing
- Type and style
What components make up a window frame?
A window frame consists of jambs, a sloped sill, stops, and may include casing.
What distinguishes exterior doors from interior doors?
Exterior doors are generally thicker, more expensive, more weather-resistant, and more secure.
What are the main elements of a double-hung window?
Key elements include muntins, upper sash, side jamb, parting bead, pulley, meeting rail, sash weight, interior stop, sash cord or chain, lower sash, pocket cover, stool, and apron.
What is a prehung door?
A door that comes fitted to a frame, with hinges mortised into a jamb.
What materials are commonly used for window frames?
- Aluminum
- Wood
- Clad
- Vinyl
- Fiberglass
What are the two types of jambs that distinguish door frames?
- Hinge jamb
- Latch jamb (also called strike jamb or lock jamb)
Which window frame material has the best insulating level?
Clad frames offer the best insulating level.
What is the standard width for interior doors?
2 ft. 6 in. and 2 ft. 8 in.
What is the U-factor?
The U-factor is an aggregate measure of how well non-solar heat flows through a window’s glazing and frame; lower U-factors indicate better performance.
Fill in the blank: Standard exterior doors are _____ wide.
3 ft. 0 in.
True or False: The lower the U-factor, the better the window’s energy performance.
True
What is the standard door height for newer houses?
6 ft. 8 in.
What are the three basic options for replacing windows?
- Replacement sashes
- Window insert
- New-construction window
What is the role of shims during installation?
They help level and plumb windows and doors within rough openings.
What is a replacement sash?
A replacement sash is a new sash installed into an existing frame, typically used when the frame and sill are in decent shape.
True or False: Most doors, windows, and skylights are preassembled in factories.
True
What is a window insert?
A window insert is a rigid frame and sash assembly that fits inside an existing frame, providing better air sealing and energy efficiency.
What is a rough opening (RO)?
The space in which a door or window frame is installed, typically 1/2 in. to 1 in. wider and taller than the frame.
When is a new-construction window necessary?
A new-construction window is necessary when there is water damage and rot present, requiring the complete removal of the existing window.
What is the difference between inswing and outswing doors?
Inswing doors open inward, while outswing doors open outward.
What is double glazing?
Double glazing consists of two glass panes separated by spacers, creating an airtight space for insulation.