combustible insulation exposed in garages\nsignificantly reduces heating costs\nprotects cars from…

combustible insulation exposed in garages\nsignificantly reduces heating costs\nprotects cars from rusting\neliminates sound transmission between the house and the garage\nis only required on the ceiling to minimize heat loss\nis a fire hazard\nquestion 38\na landing may not be needed for exterior steps\nwhen it is a secondary entrance and there are three or fewer risers\nwhere there are three or fewer risers, regardless of which entrance it is\nif the steps have a handrail that is at least 30 inches tall\nwhere there are fewer than six steps\nwhen the door opens inward

combustible insulation exposed in garages\nsignificantly reduces heating costs\nprotects cars from rusting\neliminates sound transmission between the house and the garage\nis only required on the ceiling to minimize heat loss\nis a fire hazard\nquestion 38\na landing may not be needed for exterior steps\nwhen it is a secondary entrance and there are three or fewer risers\nwhere there are three or fewer risers, regardless of which entrance it is\nif the steps have a handrail that is at least 30 inches tall\nwhere there are fewer than six steps\nwhen the door opens inward

Answer

Brief Explanations:

  1. Combustible insulation in garages is flammable, so it poses a fire hazard. It does not reduce heating costs (as it's combustible and may be damaged), does not protect cars from rusting, does not eliminate sound - transmission, and is not just required on the ceiling for heat - loss minimization.
  2. For exterior steps, a landing may not be needed when it is a secondary entrance and there are three or fewer risers. General building codes often have such provisions to ensure safety and practicality in construction.

Answer:

  1. is a fire hazard
  2. when it is a secondary entrance and there are three or fewer risers