We have a colonial style house with a green roof, white siding on the bottom part of the house (with green shutters) and dark green asbestos shingles on the upper part of the house. We would like to try a new color on the top instead of the dark green

I AM USING ACRYLIC PAINT AND FIND AFTER PAINTING THAT THEIR ARE PATCHES. ANY ADVICE? NOT SURE WHAT PAINT WAS USED BEFOREHAND BUT IT IS NOT ENAMEL, ALTHOUGH IN SAME PLACES THERE IS A SLIGHT SHEEN.

Painted our skylight tunnel last summer. First coat I used Kilz general purpose drywall sealer and then applied a ceiling paint. Five months later the paint (including the orig textured finish)is peeling away from the bare drywall. At the time of painting the tunnel was fairly warm from the summer