The deck just fell off our house
We have a 12x24 HD imitation wood (like Trex) deck, 3 years old, supported by three 4x4's and attached to the back of our stucco house. We're doing some patio work under the deck and wanted to replace the 4x4's with 4x6's, so the contractor who built our house came over yesterday and put temporary supports so the concrete guys could work and then he'd put in the 4x6's. At 5:50 this morning the deck broke free of the house and fell to the ground. The contractor has been here and will put the deck back up. My question is, I see the lag bolts sticking out of the back of the deck are only about 2 1/2 inches long (the part sticking out that I can measure). Also, there's no beam attached to the stucco. Should the lag bolts be longer, and should there be a beam attached to the stucco that the lag bolts go into? The bolts are 4 feet apart.
Thanks for any advice you can give.