Pergo LF000820 Installation Guide download pdf (Page 8)

17. COM M E RC IAL APP LICATIONS:

(Only for those products that are designated for commer-

cial use by Pergo, Inc.)

In commercial applications, an expansion space of

⁄2"is

required at all walls, pillars, pipes and other ﬁxed objects.

Areas greater than 66 feet in length or width, and consec-

utive multiples of 66 feet, i.e. (one room; two or more

rooms with adjoining archways greater than 4 feet; large

room with extended hallway) must have a T-Molding

installed across the width of the room, archway or at the

beginning of the hallway to provide additional expansion

space.

When fastening ﬁxtures to a ﬂoating ﬂoor, the anchoring

bolts or fasteners must have the same expansion space (

⁄2

inch) around each bolt or fastener as required for walls,

pillars, pipes and other ﬁxed objects.

Commercial ﬂooring transitions that accommodate a

⁄2"

expansion space are strongly recommended.

18. INSTALLING PERGO FLOORING ON STEP DOWN

AND

STAIR TRE AD APP LICATIONS: Pergo Stair Nosing is

used

to ﬁnish stair edges or step down applications. Prior

to beginning the installation, any loose or damaged

treads or risers should be repaired or replaced. The

stairs must be cleaned thoroughly from any loose

paint, debris, or old adhesives.

Due to the many varieties of stairs available in North

America, a professional stair contractor may be required

for certain installations. Check local building codes

before altering dimensions of stair tread, riser and nosing.

Should there be any questions regarding the application

of Pergo on stairs, please call our Customer Help line at

1-800 33-PERGO (1-800-337-3746).

STAIR NOSING

■ Step down from a floating floor

Cut the Pergo stair nosing to the desired length. The

nosing must be fastened with screws (ie. ﬁnishing

screw #6 by at least 1

⁄8"). A quality construction

adhesive should also be used. A

⁄4" expansion space

must be maintained between the nosing and the

ﬂoating ﬂoor. For Step Down (from a ﬂoating ﬂoor ) to

a lower level or at the top of a ﬂight of stairs: Adhere

the stair nosing with a quality construction adhesive

and with #6 ﬁnishing screws 1

⁄8" in length. Place

screws 2 inches from each end of the nosing and

space additional screws at intervals no greater than

8 inches along the length of the nosing.

a. For

⁄16" (8mm) plank thickness use the thin shim

beneath the stair nosing. Adhere the shim to the

nosing with construction adhesive and adhere

the shim and nosing to the subﬂoor with construc-

tion adhesive and fasten with screws

b. For

⁄8" (9-11mm) plank thickness use the thick

shim beneath the stair nosing. Adhere the shim

to the nosing with construction adhesive and

adhere the shim and nosing to the subﬂoor with

construction adhesive and fasten with screws

Stair Treads only: Adhere the stair nosing with a quality

construction adhesive and fasten with #6 ﬁnishing screw

⁄8" in length. Place screws 2 inches from each end of

the nosing and space additional screws at intervals no

greater than 8 inches along the length of the nosing.

■ For

⁄16" (8mm) plank thickness do not place any shim

beneath the stair nosing. Adhere the stair nosing

directly to the tread with construction adhesive and

fasten with screws

■ For

⁄8" (9-11mm) plank thickness use the thin shim

beneath the stair nosing. Adhere the shim to the

nosing with construction adhesive and adhere the

shim and nosing to the tread with construction adhe-

sive and fasten with screws

■ For

⁄16" (8mm) plank thickness with an attached

underlayment foam use the thin shim beneath the

stair nosing. Adhere the shim to the nosing with con-

struction adhesive and adhere the shim and nosing

to the tread with

construction adhe-

sive and fasten with

screws

This illustration shows the

step down from a ﬂoat-

ing ﬂoor. The step down shows the tread ﬂush or even

with the riser.

■ Tread flush or even with the riser

The riser must be installed before the stair nosing is ﬁt

into place. If installing from a ﬂoating ﬂoor, follow the

above instructions. When installing on a stair tread,

the nosing will be

installed after the tread

and riser are glued into

place.

■ Tread with an extend-

ed round edge nosing

The rounded portion

of the extended nosing will need to be squared.

Leave as much of the extending nose of the tread as

possible, removing only the radius (the rounded por-

tion). On the edge of the squared nosing, glue a nar-

row strip of Pergo. This will ﬁnish the exposed edge of

the tread. After installing the tread and riser the nos-

ing will be installed, ﬁnishing the nose of the tread.

The illustration shows a step with an extended round

edge nosing. On the illustration a dotted line will

show where to cut the rounded portion of the

extended nosing.

/4"

/8"

/4"

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Pergo LF000820 Installation Guide Page 8

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