Installation Guide
4 
Ventamatic, Ltd. | 100 Washington Ave, Mineral Wells, TX 76068 ▪ Phone: (800) 433-1626 ▪ www.bvc.com 
Step 2: Cut the Shutter Opening
  Cut through ceiling along lines using a 
circular saw. Measure depth of drywall 
and adjust the saw so you only cut the 
drywall and avoid the joists. 
  Carefully remove the drywall from the 
opening
*Note*  Make sure the exposed joist is 
centered if doing the joist-in installation. 
Step 3: Cut the Ceiling Joist (For Joist-Out Installation Only)  
  Stabilize the joists using 2 X 6 lumber to 
bridge the joist about six inches away from 
either side of the opening.
  Attach stabilizers to the joists with #12D nails 
or 2 1/2” deck screws. 
  Mark two lines on the joists to be cut about 
1 1/2” away from either side of the opening. 
  Cut along the lines using a saber saw. Make 
sure cuts are perpendicular and accurate. 
Step 4: Frame the Shutter Opening 
  Use lumber of the same dimensions as your ceiling joists and fasten them to the edges of the frame 
opening using #12D nails. 
  Fasten the sheetrock to the new frame using 1 1/2” ring shank drywall nails. 
  Seal any gaps between headers and joists with caulk or foam insulation. 
_*Note*  Remove the two bridges from the previous step if doing a joist-out installation.______________ 
Joist-In Installation 
Joist-Out Installation 








