Hi, currently live in average sized 3 bed end of terrace. the house at the minute is a tired looking magnolia, looking to freshen up the appearance by doing it in white. No major problems on the surface, a few cracks here and there which i will fill and tidy up. Paintwork is shabby at the rear of the house, its bubbled and flaked over the white paint underneath it, in places but not everywhere, mainly around the garden door actually cant see it happening anywhere apart from there. Right, waffling over...will it suffice just to scrape off the sh!**y bits of paint and then paint over? Or is this an indication of something else which will need more attention? And, I'm looking to go over the house in Dulux Weathershield or similar, is that any good? Or any alternative paint i should look into? Thanks for taking time to read this!