I have 20sq.m. of 40-year old, north-facing, felted flat roof which is showing some cracks and there are signs off leakage onto plasterwork below.
Having looked around at repair products available it's clear that there are many choices and a wide variation in price. I would be grateful if someone with experience could advise on:
Technology - bitumen, acrylic, rubber Brands - much the same for a given technology? Application - coverage per litre: how many coats.
Thanks.