Summarize the following:
You must determine from the outset whether the added weight of the plants will be something the roof can withstand. You should also find out whether there are any council or municipal vegetative roof restrictions. With vegetation and full saturation, expect the roof to weigh another 20 pounds per square foot of additional weight.    {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c1\/Build-a-Green-Roof-Step-1Bullet1-Version-2.jpg\/v4-460px-Build-a-Green-Roof-Step-1Bullet1-Version-2.jpg","bigUrl":"\/images\/thumb\/c\/c1\/Build-a-Green-Roof-Step-1Bullet1-Version-2.jpg\/aid688104-v4-728px-Build-a-Green-Roof-Step-1Bullet1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"<div class=\"mw-parser-output\"><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"} The roof will require an incline to ensure that water runs off naturally and doesn't water log the roof. In general, any roof with a slop of up to 40 degrees is safe to use (providing the previous step's restrictions have been observed.

summary: Consult with a structural engineer to ensure that the joist can handle the changed use for the roof. Check the slope.


Summarize the following:
When the sun hits the cuprous oxide layer, it causes electrons to be released. The cuprous oxide is not conductive, but the electrons are able to move through the salt water to the conductive copper plate. This plate transfers the electrons to the wires. Plug the other end of your alligator clips into a multimeter or ammeter. Be sure that your meter can function in the microamp (0.000001 amps) range. Plug the positive alligator clip into the positive terminal of your meter and the negative alligator clip into the negative terminal of your meter. A very small amount of current will be flowing. This current should fall somewhere between 0 and 50 microamps. Turning the cell so that the cuprous oxide layer is facing the most direct sunlight will give you the most current.

summary: Place the solar cell in the sun. Hook the alligator clips to a multimeter. Set your meter to read microamps.


Summarize the following:
This button looks like a black Apple icon in the upper-left corner of your screen. It will open a drop-down menu. This will open your System Preferences in a new window. This option looks like a speaker icon on the System Preferences menu. It will open your computer's audio settings. This button is located next to Sound Effects and Output at the top of the Sound window. You'll see a list of all the audio input devices connected to your computer here. Find the microphone you're using, and click on its name. This will boost the selected microphone's audio input to a higher level of volume. You can now speak to your microphone, and check the Input level indicator here in order to see if your microphone's input is boosted.
summary: Click the Apple icon on your menu bar. Click System Preferences on the menu. Click Sound in System Preferences. Click the Input tab. Select your microphone on the Input menu. Slide the Input volume slider to the right.