What kind(s) of cleaners would I need to prep my home for painting in and outdoors? Is it important to use a roller after using the airless indoors or outdoors?
My experience is two different products for interior and exterior cleaning.
When we get an exterior ready to paint, we will pressure wash and mildew wash the surfaces, then paint within a week. Karl has a good outline at this link < a href="http://www.house-painting-info.com/exterior-paint-preparation.html">www.house-painting-info.com/exterior-paint-preparation.html</a>
For interior prep, follow Karl's link <a href="http://www.house-painting-info.com/interior-paint-preparation.html">www.house-painting-info.com/interior-paint-preparation.html</a>
To answer your back rolling question, we absolutely will back roll interior walls. Better coverage and easier touch-ups are the primary reasons. Exterior painting has many variables so my rule is, when possible, back roll.