CMP 124 Exam 1 Questions with All Correct Answers
What kind of lumber is used in wood foundations? - Answer-Treated lumber
What kind of nails used in wood foundations? - Answer-Only Stainless steel because it won’t erode
Advantages of Wood Foundations - Answer-- No Construction delays due...
Do we still need moisture? - Answer-YES! Helps with comfort, and avoid furniture from
cracking when it is too dry
relative humidity - Answer-The amount of water vapor in the air at any given time is
usually less than that required to saturate the air. Expressed as a percentage.
100% Rh = fully saturated
What does RH affect? - Answer-The dimensional stability of materials
dew point - Answer-the temperature at which the water vapor in the air becomes
saturated
Why do DP and RH matter? 3 things - Answer-1) Dimensional stability
2) Builder materials
3) millwork and furniture
In our climate where does the vapor barrier go and where does the house wrap go? -
Answer-Vapor barrier --> warm side
House wrap --> cold side
Grain pattern - Answer--Shows the wood's character
-Shows the structural properties
Types of Wood - Answer-Spring Wood and Summer Wood
Spring Wood - Answer--Early
-Larger than Summer Wood
-Less Dense
Summer Wood - Answer--Later
-Denser than Spring Wood
-Darker Ring
-Stronger/Stiffer
2 Species of Wood - Answer-Soft Wood and Hard Wood
Soft Wood - Answer--Conifer/Needle
-75% of total lumber
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