According to Hawaii building requirements, hurricane straps connecting roof trusses to wall plates must be rated for what minimum uplift force in high wind zones?
Correct Answer
C) 525 lbs per connection
Hawaii's hurricane zones require uplift connections rated for minimum 525 lbs to resist extreme wind uplift forces on roof systems.
Why This Is the Correct Answer
Hawaii's building code for high wind zones requires hurricane strap connectors rated for a minimum of 525 lbs uplift per connection. This threshold is derived from engineering calculations for the extreme wind uplift forces experienced during Pacific hurricanes and severe tropical storms.
Why the Other Options Are Wrong
Option A: 350 lbs per connection
Option A (350 lbs) is insufficient for Hawaii's high wind zones. While 350 lbs may meet requirements in lower wind exposure categories, Hawaii's hurricane-prone environment mandates the higher 525 lb minimum to ensure roof-to-wall integrity under storm conditions.
Option B: 700 lbs per connection
Option B (700 lbs) overshoots the minimum requirement. While higher-rated straps can be used and may be appropriate for certain structural configurations, the minimum code requirement in Hawaii high wind zones is 525 lbs, not 700 lbs.
Option D: 175 lbs per connection
Option D (175 lbs) is far below the required minimum and would represent a significant structural deficiency in a hurricane zone. This value might apply to very light residential framing in low-wind areas but is wholly inadequate for Hawaii.
Memory Technique
525 = five-twenty-five. Imagine a 525-lb wrestling champion holding the roof down during a hurricane. That champion is the 'minimum' force your straps must handle in Hawaii's high wind zones.
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