EFCO Special Purpose Windows Installation - Manual (Page 17)

EFCO CORPORATION 3/5/2014 PART NO. YW40 Page 7 of 7
Window Installation Instructions - Basic Window Installation Section -
Standard mullion pressure clip as
close to the top end as possible
and 16” on center or as noted.
4” mullion pressure clip at the
bottom sealed to the opening
condition or flashing at the sill and
up the sides. This is to maintain
the sill dam height.
Interior cover
Mullion
Anchor
Mullion
Procedure A
Back seal prior to window
installation.
Procedure B
Critical seal, cap bead
with silicone sealant.
Spacing varies, see
shop drawings.
Completely read the General Installation Instructions and all other sections which pertain to
your project before starting work. These recommendations are for general erection
procedures only. For actual job conditions, see the details on the shop drawings. For
perimeter anchor types and spacing, refer to the approved shop drawings or consult the
project design professional.