Dealing with Texas heat in a hobby greenhouse

[Orchidflowerchild]

Originally Posted by JMLand

Well I have found that my swamp cooler seems to cool fairly well. Its 85 in my gh right now but 95 outside. So far only one paph shows struggle. But I want to plan for the worst of day time highs.

If you want a real long-term cooling solution, you may look into a larger evaporative urface than just a fan. I have known people to put a 2' tall wet wall at bench height all the way down one short side, and a strong exhaust fan on the other end.

The issue is we live in a place with LOTS of heat and enough humidity that evaporative cooling is less efficient than it might be.

Have you cosidered a whitewashing of the greenhouse roof rather than shade cloth? Reflecting the heat so it never has a chance to get into the GH could perhaps help.

-Ceci

[JMLand]

Originally Posted by Orchidflowerchild

If you want a real long-term cooling solution, you may look into a larger evaporative urface than just a fan. I have known people to put a 2' tall wet wall at bench height all the way down one short side, and a strong exhaust fan on the other end.

The issue is we live in a place with LOTS of heat and enough humidity that evaporative cooling is less efficient than it might be.

Have you cosidered a whitewashing of the greenhouse roof rather than shade cloth? Reflecting the heat so it never has a chance to get into the GH could perhaps help.

-Ceci

Well I have started using aliminet which seems to reduce the heat as well as light. I'm not too thrilled with the idea of paint on shade since my gh uses polycarbonate walls. I fear the sratching from adding and removing might reduce the long term life of the walls.