Module 8: External Finishes Flashcards
External layer of brick
wythe
Not a good insulator
brick masonry wall
Inner frame is load bearing
stone, brick veneer
Stucco
Durable paster (lime, cement, aggregate & water)
Problems w/ installation
Metal and vinyl siding needs ventilation
Requires resealing/grouting
stone finish
Absorb rain water and may deteriorate
clay/cement
Can shrink and crack in the freeze-thaw cycle
Stucco
Stucco is better applied over
masonary walls
Regular maintenance is required
wood siding
Contains weep holes
brick veneer walls
Has different expansion rates leading to cracking
stucco
Out of plumb
not exactly vertical
Horizontal cracks can lead to
water penetration and insect infestation
ceiling joists are attached to roof rafters
prevent spreading
R-value
resistance to heat flowing through a given thickness of material
higher the r-value…
the better of an insulator the material is
Main floor areas rvalue
r12 to r26
Open-cell spray foam
lower insulation density (used in interior walls)
Closed-cell spray foam
higher insulation density, moisture proof (used on exterior walls)
Recommended r value of attics
r38
Most commonly used insulation
glass fiber
Adds insulation around irregular shaped areas
cellulose fibre
vermiculite
was used for insulation, but not anymore bc some contained asbestos
R-2000 program
performance standards that exceed what is already in the building code
Conduction
heat is transferred through the walls, basement, ceiling of a home
Conduction is minimized by using
non conductive insulation materials in a home’s exterior structures.
Convection
transfer of heating in a gas due to changes in density (how air an cold air in a house form a loop)
Major source of heat loss
leakage around doorways and windows
Radiation
Transfer of energy from one source through a medium or space (sunlight entering a room in winter)
__ walls do not have insulation behind them
plaster
plaster is thicker than drywall therefore provides
greater sound and air barriers
Exposed beams can create depth and contrast and make the
room seem more spacious and open
Vaulted ceiling
Slopes to the shape of the roof
Wainscouting
paneling that is installed on the lower half of a wall
Bamboo flooring
less expensive than hardwood, greener option
Made from recycled hardwood, low cost, durable
Laminate flooring
Durable, warm, “bounce-back”, eco-friendly, harvested from the bark of cork oak trees
cork flooring
Mudrooms
for dirty and wet footwear/clothing
Enforcement of the building codes involve
Chief building official (appointed by the municipality)
Building inspectors
Letter of conformity
issued to property owners in incorporated townships
Any conversion, retrofit or renovation work must comply w the
Ontario building code
After work is competed a
building inspector must check the property
A heritage designation will list architectural featured that
are to be protected (doors, windows, staircases) & what materials can be used
Heritage properties hae higher
insurance premiums
Heritage Property tax relief program
municipality offers tax relief to owners of eligible heritage properties
A SP can add this to the agreement of p&s to ensure that a seller obtained permits and certificates of inspection
representation/
warranty clause
Insulated concrete forms provide for a stronger
more energy-efficient basement wall system
Insulated concrete forms are an interlocking interior/exterior form into which
concrete is poured
Insulated concrete forms positives
insulation, damp-proofing, fire hazard reduction
Insulated concrete forms negative
labour costs
Exterior insulation and finishing system consists of
several component layers (outermost layer-acrylic/stone applied over mesh and insulation)
Exterior insulation and finishing system expels mositure,
limits air leakage
Compressed wood fibre can be used for
baseboards, crown moulding, cabinetry (less expensive than solid wood)
ICFs can replace
traditional wood framing systems
Modular homes are built in sections
at a factory and assembled at their destination
Prefabricated homes could be good options for buyers that
have time and or budget concerns
Flex housing
constructed to fit the needs of changing generations
UFFI
has a negative assocation w/ health problems
