Hi,
My 6m x 5m garage seems to have had a previous woodworm activity in the rafters that I noticed today. Coupled with the fact that most tools I have in there start to rust, I've come to the conclusion the ventilation is probably poor causing high humidity levels. It is detached, single skin block, apex slated roof, unheated, and only has one 4m wide up and over door with a gap at the bottom.
Ideally I don't want to throw a lot of money at it e.g. getting it airtight/insulating/running a dehumidifier or powered fans etc so I am looking at vents/gable vents. I know the idea with vents is to have the windward side wall with a low down vent and the opposing side wall with an exit vent higher up. I also know about gable vents going up as high as possible in the gable ends (obviously). My questions are:
1. Is one or two (opposing side) gable vents better? If one, would that go on the windward side...or does it not matter?
2. Could a low down inward vent be combined with a high up gable vent on the opposite side?
3. Is there a particular combination I might be missing? Whilst I appreciate the more airflow the better, I don't want it looking like a colander if I can help it!
4. What size vents am I looking at? I see you can get those 25 mm core drill installable ones but I presume I might need a few...
If its any help the garage door, which takes up most of the south west facing wall, is allegedly on the windward side. The opposite gable end backs on to my neighbour's property of which there is a 1.5 meter wall next to it so a low down vent wouldn't work. The other two walls are next to other buildings so don't get much wind.
Thanks
Dan
My 6m x 5m garage seems to have had a previous woodworm activity in the rafters that I noticed today. Coupled with the fact that most tools I have in there start to rust, I've come to the conclusion the ventilation is probably poor causing high humidity levels. It is detached, single skin block, apex slated roof, unheated, and only has one 4m wide up and over door with a gap at the bottom.
Ideally I don't want to throw a lot of money at it e.g. getting it airtight/insulating/running a dehumidifier or powered fans etc so I am looking at vents/gable vents. I know the idea with vents is to have the windward side wall with a low down vent and the opposing side wall with an exit vent higher up. I also know about gable vents going up as high as possible in the gable ends (obviously). My questions are:
1. Is one or two (opposing side) gable vents better? If one, would that go on the windward side...or does it not matter?
2. Could a low down inward vent be combined with a high up gable vent on the opposite side?
3. Is there a particular combination I might be missing? Whilst I appreciate the more airflow the better, I don't want it looking like a colander if I can help it!
4. What size vents am I looking at? I see you can get those 25 mm core drill installable ones but I presume I might need a few...
If its any help the garage door, which takes up most of the south west facing wall, is allegedly on the windward side. The opposite gable end backs on to my neighbour's property of which there is a 1.5 meter wall next to it so a low down vent wouldn't work. The other two walls are next to other buildings so don't get much wind.
Thanks
Dan