Repeat until you are satisfied with the temperature of the rooms.
How to make a second floor in a room.
Open web editor and draw the room or floor plan that will contain stairs.
Use a tape measure to measure 16 inches 41 cm in from the edge of the rim joist and draw a small notch.
If they still are warmer then the downstairs rooms close the downstairs vents more.
Drag stairs onto the floor plan and place them in the desired location.
For best results choose a full length stair when adding it between 2 floors.
The standard second story wall consists of a horizontal floor plate a ceiling plate and wall studs all made from similar dimension lumber.
Make the second floor return vent duct bigger.
For 1 the furnace fan running all day with the a c on might solve some milder heat trap problems for your second floor.
Add a small return vent duct to each room on the second floor.
Once the walls are in place another board the tie plate attaches to the top of the ceiling plates tying all the walls together and providing the base on which to construct the roof.
Check the temperature of the second floor rooms.
You might also want to try adding a ceiling fan in critical rooms like a second floor bedroom.
Mark the position of each floor joist along the sill plate.
Adjust the height of your walls and make them higher go to building roof and select one of our ceiling.
To make a second floor with homestyler please.
You can hover over a stair in the library to see it s dimensions.