Roof
* Many roofs have plastic covers to keep out the rain.
* Most roofs have slopes.
* Some roofs absorb daytime heat
* Some roofs are part of architecture
  - buildings
  - castles
  - cathedrals
  - hospitals
  - monasteries
  - mosques
  - skyscrapers
  - temples
  - sloped , or pitched , so the rain and snow fall off easily
  - collect particles
  - have snow.
  * A 'roof' is the top part of the building. It keeps out rain and snow and protects people from the sun. Some roofs are sloped, or pitched, so the rain and snow fall off easily. Some roofs are flat, but even flat roofs have a little bit of pitch so the water can flow away towards a drain
* are covering
  - flats
* are located in airplanes
  - garages
  - mouths
  - towns
  - open air
* are part of buildings
  - buses
  - caves
  - houses
  - trucks
  - protective covering
  - singles
  - subject to collapse, even from just the weight of ash and debris
  - top surfaces
  - used for covering
* can also support active systems, such as solar water heaters
  - collapse under the weight of snow
  - shed large quantities of water
* collect oils from asphalt, chimneys, and cars plus lots of dirt and dust.
* cover materials.
* crush as a result of an energy assault or over compression of the roof supports.
* feature walls.
* have a powerful role in determining the style of a house
  - ability
  - benefits
  - characteristics
  - limited life spans
  - radiant barriers to minimize heat in the summer, and to help retain heat in the winter
  - shingles
  - significant benefits
  - unique characteristics
* includes bases
  - roof peaks
  - sections
* is protection
* provide clamp pressure
* tend to be made of shingles and sometimes leak.
* undergo significant expansion and contraction as they heat and cool throughout the day.
* usually have the largest surface areas and are exposed to airborne sparks
  - that are exposed to airborne sparks

### roof:

Gable roof
* are roofs.
* can enclose a large volume of space.

Green roof
* are quite common in European countries, where they have had problems with flooding.
* symbolize bamboo shafts which in turn represent youth and longevity.

Metal roof
* are especially susceptible to snow slides
  - fire retardant, providing a unfriendly home to fire-blown embers
  - low maintenance and long lasting, resisting decay, discoloration and mildew
  - normally of treated steel or less commonly of aluminium
* have ability.

Pitched roof
* Some pitched roofs have parts that stick out for windows.
+ Roof: Construction
  * It can be dangerous to walk on a pitched roof. Some pitched roofs have parts that stick out for windows. These are called dormers. The edges of pitched roofs are called eaves. Often there are gutters and leaders at the eaves, which take away water from the roof.

Vegetative roof
* can absorb a portion of the sound that otherwise bounces off hard roofing surfaces.
* have important acoustical benefits, especially for higher frequency sounds.

White roof
* keep houses cooler in summer.
* work because of the physics of sunlight.

### roofs:

Flat roof
* Some flat roofs collect particles.
* are roofs.

### rooms:

Cardroom
* Most cardrooms typically have two blinds, the small blind and the big blind.
* are rooms.