You should apply only one coat of primer as that is all you need, as anymore is just a waste. Then you can apply one or two coats of finish paint over the primer and if is badly weathered the two coat route will be best for the long haul. The house will not be sealed up to tight as acrylic paint allow moisture to escape not hold it in. No the problem will not be worse with a better product as on an exterior you want the better resin package for long term durability.
Hope this helps out. |
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