are your roof, walls, windows, doors, garage door, etc. capable of withstanding a category 4 hurricane?

many state building codes require that houses in coastal areas be capable of withstanding a category 4 hurricane with winds from 130 to 156 mph. 
Saffir–Simpson scale - Wikipedia

How to Calculate Wind Loads From Wind Speeds | Sciencing

pressure P (psf) = 0.00256 times wind velocity V (mph) squared. 

for V = 130 mph, P = 43.3 pounds per square foot (psf)
or 1 ton (2,000 pounds) per 6.8 ft. by 6.8 ft. of surface area 
or 4,330 pounds (2.2 tons) per 100 sq. ft. of surface area 

for V = 156 mph, P = 62.3 psf
or 1 ton per 5.67 ft. by 5.67 ft. of surface area
or 6,230 pounds (3.1 tons) per 100 sq. ft. of surface area

are your roof, walls, windows, doors, garage door, etc. capable of withstanding a category 4 hurricane? 

if the answer is no, then blame government building inspectors. 

building inspection is a state responsibility. typically, states use local governments to perform building inspections. 

are the states' poor performance in enforcing building codes partly responsible for the fact that the quality of construction over the last 50 years has declined while the quality of goods and services in other industries has increased more than 200% over the last five decades? 

https://commons.wikimedia.org/wiki/File:Construction-non-farm-labor_1964-2003.jpg

answer: ABSOLUTELY!