Although your conservatory has been manufactured to the highest standards using high specification components,it is advisable to wipe down and re-lubricate the moving metal parts every 6 months.The use of an acid-free light machine oil is recommended rather than penetrating such as wd40.A selfbuild conservatory is manufactured from high grade pvcu and will therefore never rot,need painting or discolour.Cleaning upvc is recommended to remove dirt and dust that can accumulate,especially in areas prone to higher levels of pollution or at coastal areas prone top salty atmospheres.Warm soapy water and a sponge will remove most layered dirt but a proprietary pvc-u cleaner can be used for more stubborn marks and stains.Do not use any abrasive cleaners or sharp objects to remove marks on your Diy conservatory.