Attic tents can vary in size but you do not need exact measurements in order to install them properly.
Installing an attic tent.
Use plastic roof cement to smooth the vent base and then place the base over the hole.
Static vents often protrude from roofline thanks to.
To ensure an easy opening of the attic tent.
Slip the top end of the flashing above the shingles directly over your hole allowing it to lap over the area below the hole.
Measure the inside width and length of the rough frame then pick the attic tent closest in size.
Using roofing nails secure the base and seal the nails with roof cement source.
Installation process for a stair attic tent measure the distance and the height of the attic stairs start from above the frame.
Due to their flexibility you have about a 2 3 margin of error.
The attic tent is the ultimate attic access insulation cover ever invented attic stairs scuttle holes knee wall doors and full size doors its primary design is to stop air infiltration between the home and attic the most common medium for wasting costly residential energy during both hot and cold seasons.
Do it yourself.
Installation of this type of attic ventilation involves leaving a gap in the sheathing along the ridge and covering it with a perforated vent.