Reprocutions Heat + Humidity

Hey guys, quick questions. Im heading to the shop to get some exhaust fans because its getting hot in my grow room... my question is what happens to the plant when it gets too hot and when the humidity is too high? Ever since the humidity got so damn high my leaves are starting to droop.

At the moment the room is steady at 85deg but the humidity is damn near 80%. Before I watered it was around 65%. Thats too high, if I remember right someone said about 20% is right.

Also when I get an exhaust fan will it get rid of most of the humidity or should i get a de-humidifier. Thanks to all who reply!

honestly you can answer your own question ..

what happens when you or anything else gets too hot,

YOU DRY OUT !

straight up, 85 degrees is perfect, and you only want a lower humidity during flowering. Any other info is pure speculation, like a lower humidity will increase females and nitrogen and blah blah, theres no proof.

Doesn't sound like you have a heat or humidity problem. 80% is a little higher than I'd prefer but it isn't going to kill your plants. Is it possible that you're over watering? Drooping leaves happen when they're transpiring more water than they're absorbing, which can happen with over watering and under watering.

Over watering causes root damage and the plant won't be able to take in enough moisture and under watering is when the moisture isn't present to be absorbed.

I can't know for sure without more information or maybe pictures. How often are you watering?

60-70 % humidity is preferred in veg...

I Keep my veg room between 50-60% hummidity, and my flower room no less then 40% and no higher then 50%. You have higher then normal heat...75F is desired as the plants "breathing" is best at that temp, and hummidity range...I don't like to go over 80F, but that doesn't happen very often. With the higher temps, the hummidty will rise when you water...the exaust will help to relieve some of the heat causing the spike in hummidity. It's common for hummidity to rise when you water, but it goes back to normal after as short as a few hours, or at most a day. The guy above does have a valid point too...leafs "drooping" is a common problem from overwatering, which could also lead to your higher hummidity. Leafs will also droop when the plant is doing some repairs to itself, which is why it's always good to have a lights on and off schedule, since most repairs will be better done during the plant's "sleeping" mode.

Its gonna be a long post but its needed.

The lower the temps in the room the higher humidity the plants can handle without getting beat down,just like people, it can be very hot in the high 80 degree range & as long as there is very little humidity the heat isnt bad to live with, but raise the humidity to 80% & were all miserable,think about this for a second,in 80% humidity conditions you'd be drenched in sweat with your shirt hanging down to your knees,you'd feel like hell,this is how your plants feel.

Acceptable Humidity levels durring heavy bud are highly dependant on 2 things,the first & the most important is direct air circulation on & around all the bud sites,the better the air flow directly on/over & around the buds the higher humidity the buds can disperse without collecting so much moisture that mold starts forming within the center of the bud,once bud rott sets in your screwed.

Whats happening right now between the high temps & out of sight humidity is that your plants are wilting,this is not good.At 80% humidity the walls must be very damp,it can be done but for a new grower its an invitation for bud rott & one that you'll most likely experience if you dont get the humidity down to below 60%,a humidity level between 50% & 60% is what your looking for at all times.

Do not continue to allow the plants to live in an 80% relative humidity condition no matter what anybody says beacuse its bad advice,its a flat out bad enviroment for the plants/bud sites to live in.

The 2nd factor is heat,while 85 degrees is a temp the plants can live in it is not the optimum temp for indoor plants to bud at,the plants will be much more comfortable & produce more bud growth if you can get the temps down to below the 80 degree mark,you should shoot for around 75 degres if at all possible for the plants to be at their optimum comfort level,everything grows better when its comfortable,same as with people.

You mentioned getting an exhaust fan,what size are you getting & how many cfm will the fan produce,this is important if you want room temps to be something you can control,you should be able to lower the overall temp in your room by a full 10 degrees within 10 minutes of the exhaust fan starting up.

When you do get the right cfm fan you'll want to mount it as high as possible in the room,heat collects at the top of the room obviously,you'll also want to have either a passive or powered air intake at or very near floor level so cool air can be sucked into the room,with the room conditions you have powered intake would be preferable & the best choice.

When trying to overcome high humidity its best to try & control the levels using the air intake & exhaust instead of dehumidifiers,first off dehumidifiers put out ass loads of heat,think electric space heater here,a dehumidifier will not help your allready too hot room,second is that dehumidifiers use alot of electricity,they run on much the same principal as an air conditioner.

Your best bet for controlling temps & humidity is to bring in fresh cool air from another area of the home via a duct with an intake fan blowing the air in the room at floor level,then the exhaust set up twords the ceiling pulling hot air from the room,this exchange of air will lower humidity levels very fast if implemented properly as well as to correct any heat issues.