ITAZ RQ: Exteriors Flashcards
Exteriors:
List three main functions of exterior cladding.
- Protect the building structure and interior from damage due to water and snow, wind, pests and mechanical damage
- Provide reasonable security
- Enhance the appearance of the house
Exteriors:
List five common problems that are found on all wall systems.
- Water penetration
- Too close to grade
- Too close to roofs
- Planters and gardens against the wall
- Vines
Exteriors:
What are the implications of missing weep holes on brick veneer walls?
- Water getting into the structure
- Spalling of the lower masonry units in a wall
Exteriors:
List seven common problems with masonry walls.
- Efflorenscence
- Spalling
- Cracking
- Mortar deterioration
- Missing weep holes or flashings
- Mechanical damage
- Bowing walls
Exteriors:
Describe efflorescence. What is it? What causes it?
- Efflorscence is a salt deposit on a masonry or concrete surface that is associated with water moving through walls.
- The deposits are usually whitish (can be green or brown) and often project one-quarter to half an inch out from the wall if protected from rain and mechanical abrasion
Exteriors:
Expanding, rusting steel lintels over windows and doors often cause cracks in what direction in masonry walls?
- Horizontal cracks radiating out from the top corners of the opening
Exteriors:
Stucco is made up of __________.
- Cement, aggregate and water
Exteriors:
Describe how you would determine whether stucco is over wood or masonry.
- Tap on it.
Exteriors:
Where are soffits and fascia typical found?
- Enclosing the rafter ends at the roof overhang
Exteriors:
What materials are commonly used for soffits and fascia?
- Wood
- Alumninum
- Fiber-cement
- Hardboard
- OSB
- Plywood
- Vinyl
Exteriors:
List four common problems with soffits and fascia.
- Loose or missing pieces
- Rot
- Damaged
- Paint/stain needed
Exteriors:
List 12 common problems with doors and windows.
- Rot
- Damage
- Paint/stain
- Caulking and flashing problems
- Putty (glazing compound) problems
- Sill slope
- Deteriorated sills
- Frame deformation
- Storm windows and screens missing or damaged
- Cracked or broken glass
- Condensation between panes
- Vines
Exteriors:
Give three examples of where flashings would typically be found on exterior walls.
- Where walls meet roofs (step and counter flashings)
- Over windows (head flashing)
- Bottom of walls (to direct water out of the wall cavities and/or protect the bottom edge of siding)
Exteriors:
List six common problems with caulking, trim and flashings.
- Missing flashings
- Ineffective or incomplete flashings
- Loose
- Rust
- Rot
- Missing or ineffective caulking
Exteriors:
Why is common sense so important with respect to evaluating exterior trim and flashings? Discuss a general strategy for inspecting trim and flashings.
- Because not all trim/flashings cause water build up/damage. One must look at all siding for style and installation (uneven, etc) and identify and worrisome points.
- For example, horizontal trim/flashings that are sitting proud can cause water build up. A bead of caulking that forms a sloped shoulder helps to drain water off and protect the joint.