Do I need expansion joints?

I have a brand new home with a 14X30 attached and covered Patio. I want to add 30 inches on one end of the Patio from the house to the end of the patio. (This is where I intend to keep my grill and smoker.)
So, my new concrete will be 30inches by 14 feet. Do I need an expansion joint between 14 foot of existing patio and between the 30 inches and the house slab? And if so, what kind and size joint?
I intend to do this using approximately 20 bags of sakrete. (I plan to have extra, on hand.)
Reply to
dangerousdana
Nope, the new concrete won't bond to the old, almost at all. However, you still may want to have a relief joint in the middle of the 30"x14' slab, so you don't get an ugly crack in the future.
Reply to
Anonymous

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