At the end of September, we repainted our house which was newly constructed 9 1/2 years ago. We are in Northern California in the Bay Area. The weather when it was painted was sunny but cool and dry. We used Benjamin Moore Low Lustre acrylic Paint for the wood siding and the Benjamin Moore Semi Gloss acrylic for the trim. The painter power washed the house and waited about 1 day to dry before painting.
A little over a week after the painting was completed, there was a big storm and the rains came down quite hard for the whole day. The next morning, we saw thousands of bubbles clustered around the lower part of the window trims (especially the sills), on the recaulked seams, bases of our columns and doors. Bubbles also appeared at the seams of the sidings and edges of windows that were recaulked and painted over. The next day after the rains dissipated, the bubbles disappeared except for a few spots.
Here are pictures of some of the problem areas at
I am asking the painter to come back to look at the problem. The weather has been nice and dry since. We have tried to recreate the bubbling by running water over the multiple problem areas for at least
15-20 minutes, but can only recreate the bubbles in a smaller size on the columns. Is there another way to recreate this scenario so that we can show the painter what happened?My questions are: 1. What would have caused that? Inappropriate preparation before the painting? 2. Somebody suggested that because it usually takes a few weeks for the paint to completely dry, that bubbling occurred because the paint job had only a week to dry? Is this true? 3. Under the bubbles which formed and now have dried out, is there still moisture trapped in there. Will this keep reoccuring with every rain? And if it does, will this eventually cause damage to the wood trim and siding? 4. What should we ask the painter to do to fix the problem correctly and prevent future problems?
Thanks in advance for all of your suggestions.
K