Trapped water can freeze and split pipes so install leaf guards at the top of rainwater outlets to help prevent downpipes from becoming blocked.
Gall dŵr sy'n methu â dianc rewi a gwneud i bibellau hollti, felly gosodwch rwystrau dail ar ben arllwysfeydd dŵr glaw er mwyn helpu i atal pibellau dŵr rhag cael eu blocio.