Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to deal with damp in your home [title] Use the right paints and sealants. [step] Use a water-based paint system as far as possible to ensure good breath-ability and for preventing vapor pressure build up. For the window frames and glass joints, use a good quality sealant.

Ending1: For your walls and floor, use washable or place-bought paint. For your carpets, use water-based paint. Ending2: [substeps] Use a flexible silicone sealant in your kitchen and bathrooms, too, to seal the edges of your back-splashes and showers/tubs. [title] Check if there are cracks around the windows or any wall penetrations. Ending3: For windows, consider pre-sealants to help prevent sweat from building up. [substeps] Invest in both transparent and reflective glass and reflective spray paint that lasts for longer. Ending4: Avoid sealants that have reflective formulas or are several shades of gray, such as darkness blue, purple or green. Industrial-grade sealants can be found at hardware or automotive stores.

Answer format: ending1/ending2/ending3/ending4