This is one in a series of A Guide to Narrow Boat Problems.
Problem
Pools of water found internally near window
Cause
Either condensation or leakage.
Solution
Condensation may form on cold windows - worse at night with warm bodies sleeping and giving off warm air, or otherwise when it's warm inside and cold out - and moisture is formed on windows and drips onto walls and floor. Mop up immediately. Make sure air vents and "mushrooms" are clear as a movement of air is essential to reduce condensation. There may be a small hole at the bottom of the window, internal, by the seal, which is intended to allow water to drip outside. It will get clogged up with moss so use a paper clip to clear it - if you can find it.
It's possible, at some expense, to fit double glazed windows, and a cheap alternative is to use film (cling film or something more substantial, see Wickes Seasonal Film) across the existing window frames. Cat litter is great at absorbing damp areas if that remains a problem (though tripping over cat litter becomes a further problem ....).
If the leak is from outside, ensure window seals are effective. Fill any gaps with waterproof mastic. If the problem remains unscrew window frame and apply rubber seal or mastic before replacing.
Remove bedding and food from immediately below the window.
Avoidance
Ensure vents and windows are open to allow circulation of air. Air the boat regularly.
Problem
Pools of water found internally near window
Cause
Either condensation or leakage.
Solution
Condensation may form on cold windows - worse at night with warm bodies sleeping and giving off warm air, or otherwise when it's warm inside and cold out - and moisture is formed on windows and drips onto walls and floor. Mop up immediately. Make sure air vents and "mushrooms" are clear as a movement of air is essential to reduce condensation. There may be a small hole at the bottom of the window, internal, by the seal, which is intended to allow water to drip outside. It will get clogged up with moss so use a paper clip to clear it - if you can find it.
It's possible, at some expense, to fit double glazed windows, and a cheap alternative is to use film (cling film or something more substantial, see Wickes Seasonal Film) across the existing window frames. Cat litter is great at absorbing damp areas if that remains a problem (though tripping over cat litter becomes a further problem ....).
If the leak is from outside, ensure window seals are effective. Fill any gaps with waterproof mastic. If the problem remains unscrew window frame and apply rubber seal or mastic before replacing.
Remove bedding and food from immediately below the window.
Avoidance
Ensure vents and windows are open to allow circulation of air. Air the boat regularly.
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