Low grade materials means ineffective climate control, constant breakdowns and hassles

If you don't get the best materials, then you cannot possibly get good ducting or ducting components.

And given the the purpose of ducting is too maintain the air temperature at the same level that that comes out of the air conditioner, if you don't get the best materials in your ducting or components, it will mean that:

• Air flowing through the ducting will not remain temperate
• Ducting and ducting components will break down more often
• Air conditioning system's lifespan will be compromised