EFCO 526 Series - Manual (Page 36)

EFCO 6/2012 Page 36
Series 526 Impact Installation Instructions
[Fig. 35]
Backer Rod
Backer Rod
[Fig. 34]
[Fig. 33]
[Fig. 32]
Sealant
All portions of the frame and surrounding conditions, where sealant will be applied, should
be cleaned and prepped per the sealant manufacturer's recommendations. Use silicone
type sealant to create the perimeter seal of the system at both exterior and interior
perimeters. Exterior and interior seals are required for air and water performance. Begin
by pushing caulk backer rod into position around the full perimeter of the frame at the head
and jambs. Push the backer rod into the gap, between the frame and condition, so it sets
below the frame edge. See figures 32 - 34 below for backer rod placement. The sealant
should be applied by a skilled tradesman to ensure proper seal and appearance. See
figures 33 and 35 below for sealant application. The sill and subsill will have a bead of
sealant across the full length of the subsill. See figure 35.
SECTION VII: Frame Installation
Step 7) Perimeter Frame Sealant
Backer Rod
Prior to applying sealant to the required areas, clean the area with Isopropyl Alcohol and a clean towel
that will not leave towel materials behind. Wipe off material with a sufficiently dampened towel to remove
all dust, oil, and cutting fluids from the required areas. Allow to air dry before applying any sealant.