The problem wasn't as much the subprime loans as it was what the big banks did with them by packaging them into terrible products called CDOs and synthetic CDOs.

"Dabs are concentrated doses of cannabis that are made by extracting THC and other cannabinoids using a solvent like butane or carbon dioxide, resulting in sticky oils also commonly referred to as wax, shatter, budder, and butane hash oil (BHO).

I would use something like Allure which is a high quality synthetic (vinyl?)

Dont use synthetic ones, they degrade quickly and so do the cheap HD ones.

Once I replaced them with synthetic marble, THAT stopped.

I know the synthetic siding is much more expensive but much less maintenance.

(Look up synthetic straddle strategy). 

The guy with the lower quote said he is using regular 15 lb felt instead of synthetic because our roof only has two short valleys.

I learned from my son in Tallahassee that there is a synthetic stucco that is not good at all. 

Hi Napat,Make sure you are comparing Apples to Apples.For instance is the Contractor going to use Owens Corning Synthetic Underlayment, or X mil plastic sheeting or tar paper, or nothing because he believes (for instance) hail damage is less with nothing under the shingles, and the Ownes Corning guy is going to use the Owens Corning Synthetic Underlayment (???)