Your contractor is full of it. Is he licensed?

@cpartist Licensed, over 4.8 / 5 stars across google reviews, BBB, Houzz, and more. A+ accredited business, and many happy customers. I talked to his foreman today who said it would not be practical to tarp it and take it on and off everyday or it will lead to delays and cost more for the extra labor. I said you don't need to remove it and reattach, just go in and out of a side until you start the actual new wall work. I said I will defer to their professional judgement what they think is best. .

I can't speak for your contractor. I can tell you that we try to maintain a safe, secure site throughout new construction and remodeling. That includes minimizing the potential for dust, vermin, etc. getting into the home during construction of an addition and ensuring the homeowners' ability to heat and air condition the existing home without the need to heat or air condition the entire neighborhood, too.

" I said I will defer to their professional judgement what they think is best. . "

Of course that should be covered with a minimum of a tarp a couple vertical pieces of lumber (2x4's are enough) and a couple of sheets of plywood. I would be livid if they walked away at the end of the day and left my home wide open like that.

Covered, at the very least with string reinforced poly, and ideally with that and plywood.

That's hillbilly.

I'll reiterate the "safe, secure site" that was said.

I guess the silver lining is rats, not bears. Although make sure he's not referring to squatters, he might just have a mafia vocabulary.

I do not think having an interior space exposed that long to the elements is acceptable.

#8 on list ... How to Build a Room Addition

https://www.thespruce.com/how-to-build-an-addition-1821283 

How to Insure Your New Home Addition

https://www.amfam.com/insurance/home/home-renovation-insurance

Protecting Your Home During Renovations and Construction

https://pcs.marsh.com/us/insights/thought-leadership/protecting-your-during-renovations-and-construction.html

Please double check your state's free contractor license lookup to verify your contractor is licensed & insured for the scope of the work being done & his subs.

Unfortunately online reviews & BBB is not as reliable as it once was. It's actually easy to get a regular business license & just name a business ("____ ") Contracting without having a contractor license. I see it often & it's misleading. The only way to know for sure is to check with thee state's professional licensing board. There's also different levels & types of contracing licenses.

They may be licensed & working past their contractor's licensed allowed work level or expertise.

A driver's license is also suggested to verify they are who they say they are.

Maybe they are everything they claim to be & this is how they do it.

I would think a reliable Pro would not leave an interior home so exposed for too long, to avoid lialibities to weather, theft, etc

I would do some deep research on this & re-read your contract.

Then have an open, kind, professional discussion that the open space needs to be addressed & protected by a deadline.

I hope you get some resolution & peace of mind soon.

They left that whole wall open? That’s the craziest thing I’ve ever seen!!!