Get this they used R11 or R13 insulation in the walls. The also didn't use a radiant heat barrier on the roof. I told the builder about the loss of cooling capacity in the ducts.
He said .... bunch of bs. He's having ac company come out to "see what they can do" I told him I want a copy of the Manual J load calc. He said they didn't have it that the ac company may. I suspect they never did one. I also explained that it is Texas building code that they do one.
We will see what they say when they come out. I suspect I will most likely get an independent person to do a load calc on the house.
How and where do they measure cfm's on an ac in a house.