I am building a compost bin and it will be built right on the ground.

But is it better with or without a roof? and why? Also does the location change the answer? Lot of rain, snow, etc



Building a roof over your compost bin, would prevent it from getting moisture and you would have to water it in hot weather.

As previously mentioned, a bit of old carpet or sheet of corrugated cardboard will help to keep in the moisture while letting the heap breath and keeping in some of the heat to facilitate the micro-organisms growth.

It also has the added benefit of keeping out some of the pests if you are going to be putting food waste on the heap as well as garden waste.

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Its about appearance more than anything- however a bit of old carpet will seal in the moisture on the top (think dry summers) and allow it to really break down without having to turn it over too many times- its good though your building it on the ground as this will allow excess moisture to drain away and allow worms to get it in and do their stuff. I prefer to build compost bins away from a house and in the shade as hot sun can ferment a heap and attract flies including wasps and mosquitos too- yuck!

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  • Thanks it will be about 100 feet from the house so no worries there! – mateoc Mar 10 '13 at 19:23

Not only flies consider how often you are going to be downhill from it, your distance and what you are mostly going to be putting in it. Grass clippings smell like cow manure after just a few days. Well actually its probably the other way around.

Fun Fact: Coffee Grounds are great for compost, i had fun

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