If your hatch rests directly on the moldings add 2 1 2 inch wide stops around the opening.
Openjng attic door for heat.
This insulation is penetrated if you open u.
In late winter early spring we can go weeks and weeks without using either the a c or heater by opening windows at night to cool the house then closing them in the morning to keep the house cool.
The stops provide a wider surface for attaching the weatherstrip and a space to mount hook and eye fasteners.
One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.
This insulation resists the heat from the terrace to pass it directly to the living room.
If you want the heat out of your attic a reflective roof or radiant barrier are better ways to get there.
Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.
Be sure that the access door is well fitted and doesn t let air escape around the edges.
But while downstairs is just right.
But by adding powered attic fans you will draw more air into the attic.
To ensure that the attic fan is working properly you need to make sure that your attic is sealed up tight where it touches the ceiling of the top floor.
Opening your attic access panel will draw that air into the attic and help to push the hot air up there and out through the roof vents assuming you have proper attic ventilation.
While it does help to reduce the heat in your attic putting these fans in your attic costs more because of the loss of conditioned air.
The air you lose from the attic is then drawn into your home from the outside which will cause your cooling bill to go up.
Opening your automatic garage door will let cool air and a draft in.
As you know cold air settles and hot air rises.
I think you should do the reverse one.
Sealing the attic hatch or door.