roofing Flashcards
What are the forms of low-rise construction?
Skeleton frame, portal framing, timber frame, roofing, traditional, modular construction
Name different forms of roofing.
Lean to roof, hipped roof, mansard, gable end roof, northern light, flat roof, hypozoic hyperbolic pebbled
What angle is considered a pitched roof?
Anything above 10 degrees
What is a barge board?
A board fastened to each projecting gable of a roof to give it strength and protection
What is a dormer window?
A window built into the roof
What type of flashing was traditionally used in older houses?
Lead flashing
What are the two types of eaves?
Fascia and soffit
What is the purpose of soffit?
To provide ventilation to the roof as heat rises into the attic
What do common rafters do?
Hold up the tiles in the roof
What is the function of purlins in roofing?
Add extra support to the roof’s structure to ensure stability
What are struts used for in roofing?
Used in compression inside the roof
What are ties used for in roofing?
Used in tension
How are frame parts held together in roofing?
By gang nail plates
What is white chipping used for on flat roofs?
To stop damage as flat roofs use felt which can be affected by the sun
What are some disadvantages of flat roofs?
Require a lot of maintenance, caution over the roof falling through, lack of drainage leading to stagnant water
What do roof battens do?
Hold the tiles on the roof
What is the function of ridge tiles?
Allow air flow in and out of the roof
What is P400 roofing underlay used for?
Ensures that any water that seeps through the roof doesn’t enter the house and cause damage
True or False: Flat roofs are commonly used due to their low maintenance.
False
