Alpen HPP Glazing Procedures€¦ · Alpen HPP Glazing Procedures for 925 & 525 Glass Tools you will need. FLAT RAZOR BLADES ... APPLY DOUBLE SIDED GLAZING TAPE (TOP, SIDES, BOTTOM,)

Alpen HPP Glazing Procedures

for 925 & 525 Glass

Tools you will need.

FLAT RAZOR BLADES

RUBBER MALLET

CLEAR SILICONE CAULKING, (DOW 1199), IS OUR PREFERENCE

TAPE MEASURE

CHOP SAW FOR GLAZING STOP IF NECESSARY

RUBBING ALCOHOL

WINDEX

SETTING BLOCKS

1/16”or 1/8” GLAZING TAPE ACCORDING TO WIDTH OF IG BEING REPLACED

GLASS CUPS FOR SETTING UNITS

BONE FOLDER: FOR POSITIONING IG UNIT, ONCE SET INTO FRAME

***Before Starting IGU Replacement***

Make sure Window Frame is Plumb / Level / Square

Always Check that Replacement Glass is correct OA (Thickness) / Width / Height

Always Check for any defects in received glass.

Always Check that Replacement Glass is same size as Original Glass before removing

Original IGU (Glass)

Always Pre Set Replacement Glass before removing Blue Backing on Glazing Tape and

applying Silicone to Frame. This will assure you have proper Setting Block Height for

Sight lines and Clearance of Glazing Bead under and around Glass inside the glazing

pocket.

Apply Glazing Bead while Pre-Setting Glass to make sure Setting Block Clearance is

acceptable inside the Glazing Pocket.

If unfamiliar with New Glazing Stop Profile, Practice installing and removing on Old Glass

before removing. This will help once new glass is set.


for 925 & 525 Glass

Glazing Alpen HPP 925 & 525 Picture Windows and Casements

CLEAN THE EXCESS POLYURETHANE FROM THE IG UNIT USING A RAZOR. REMOVE ANY

REMAINING RESIDUE WITH THE RUBBING ALCOHOL. BE SURE TO CLEAN THE WHOLE IG UNIT

WITH WINDEX PRIOR TO SETTING.


for 925 & 525 Glass

APPLY DOUBLE SIDED GLAZING TAPE (TOP, SIDES, BOTTOM,) MAKING SURE THE TAPE SITS

FLUSH AGAINST THE EDGES. PEEL OFF BLUE TAPE BACKING, YOU MAY WANT TO LEAVE IT ON

EVERYWHERE BUT THE CORNERS IN THE FIELD, FOR ADJUSTMENTS. YOU CAN ALSO REMOVE

THE BLUE TAPE BACKING AND SPRAY WATER ALONG THE TAPE TO HELP WITH SMALL

ADJUSTMENTS OF THE GLASS SIDE TO SIDE OR UP AND DOWN. THEN CAULK ALL THE WAY

AROUND THE WINDOW BETWEEN THE GLAZING TAPE AND FRAME LEAVING A CONTINOUS

BEAD OF SILICONE (NO VOIDS.) BE SURE TO GET THE CORNERS WELL.


for 925 & 525 Glass

BE SURE THERE AREN’T ANY SIZEABLE GAPS BETWEEN THE GLAZING TAPES WHERE THEY

CONVERGE AT THE CORNERS. A SLIGHT GAP IS EXPECTED AND SHOULD BE SEALED WITH

SILICONE. GLAZING TAPE SHOULD ALWAYS GO ACROSS THE TOP HEADER, DOWN BOTH SIDE

JAMBS, THEN BETWEEN THE TWO JAMBS ON THE SILL.


for 925 & 525 Glass

THE SETTING BLOCK GOES BETWEEN THE IG UNIT AND THE SASH/FRAME. MAKE SURE BOTH

GLASS LITES ARE SUPPORTED BY THE SETTING BLOCK, AND FOLLOW GANA SPACING

GUIDELINES.THIS IS HOW EVERY CORNER SHOULD LOOK WHEN THE IG UNIT IS PLACED INTO

THE FRAME CORRECTLY. THIS ENSURES THAT THE EDGE OF THE UNIT IS SUFFICIENTLY

CONCEALED IN THE FRAME. IF YOU SET THE UNIT SLIGHTLY OFF CENTER, YOU WILL HAVE

SIGHTLINES AND PROBLEMS INSTALLING THE GLAZING BEAD. PLACING SETTING BLOCKS ALONG

THE JAMBS TO HELP CENTER GLASS WHEN SETTING IS OK. BE SURE THEY DO NOT INTERFEER

WITH INSTALLATION OF THE GLAZING BEAD. IF YOU GET THE BACKING STARTED AT THE

CORNERS, AND LEAVE MOST OF IT ON, IT WILL HELP WITH ADJUSTMENTS DURING THIS STEP.

JUST BE SURE TO REMOVE IT AFTER PLACEMENT, BEFORE INSTALLING THE STOP.


for 925 & 525 Glass

Removing & Installing Glazing Bead 925 & 525 Glass

1. Wedge the Five in One Painters tool with the pointed tip up between the glazing bead and frame at the

top of the piece you are trying to release from the window frame. The glazing bead has a lip/groove on

it that is wedged into the frame and allows the glazing bead to snap into a channel on the frame when

pressure is applied to it.


for 925 & 525 Glass

2.) Use pressure and press the Five in One tool into the glazing bead between the frame and the glazing

bead. Apply the pressure as you wedge/slide the glazing bead out to the left away from the frame. This

will allow the lip/groove that is on the glazing bead to separate from the frame, releasing pressure and

therefore allowing the glazing bead to detach/come loose.


for 925 & 525 Glass

3.) Once you see that the groove on the glazing has bead come out from behind the frame, Set the Five in

One tool or Plastic Folding Bone against the glass and use it to get between the glass and glazing bead.

Then wedge the glazing bead away from the glass. This will give you room to tuck the Breather Tube

behind the glazing bead once it has been Crimped properly.


for 925 & 525 Glass

Setting Block Placement for Alpen HPP Casement Windows

Casement Windows need to be glazed according to the Diagram above and Dependent on the Hinge Side of the Operable Sash. The Operable Sash gets “cross blocked” to prevent the weight Of the glass and sash frame from causing “Sash Sag.” The Position of the Bottom Corner Setting Blocks is Dependent on the Hinge Side of the Operable Sash. The Top Corner Setting Blocks are Set in the Opposite Corner of the Operable Hinge. The entire Width of glass needs to be Supported by the Appropriate Density Setting Blocks. Locate the bottom Setting Block as close To the Hinge Corner as Permitted by the GANA Glazing Manuel. *Alpen HPP Trick to Glazing Casement Glass is to use same width / height setting blocks at opposite Corner of Sill to make sure glass sets properly/ level across the Sill, then remove them before adding glazing stop. Never leave in place.


for 925 & 525 Glass

Setting Block Placement Alpen HPP 1 3/8” Glass:

This setting block placement is only a concern on our “Thicker OA Glass” the Glass OA Thickness is 1 3/8”

and the style of glazing bead used for this particular glass thickness. Pre-set all Replacement Glass Units

to check for proper Setting Block Height/Glazing Bead Clearance.

*Any Piece of Glass less than 48” Inches in Width, Setting Blocks are placed

6” Minimum from Glass Edge.

*Any Piece of Glass over 48” Inches in Width, Divide the Glass Width by 4 for Center of Setting Blocks from Glass Edge.

1.) Here is a corner sample to show a side view of the setting blocks NOT supporting both “lites” of glass

for 1 3/8” Glass.

This particular picture shows that the setting blocks have shifted when the glazing stop was installed and

now the middle full 1/16” x 1 ½” x 1 ½” setting blocks are not under the top full 1/16” x 1 ½” x 1 ½”

setting block. Our production line puts a dab of wet glazing silicone on the bottom of each setting block

and smashes them together to form the complete 3/16” thickness needed for proper sightlines at the

top and bottom of the window frame opening during Factory Installation.


for 925 & 525 Glass

2.) This picture shows the 1 3/8” Insulated Glass Unit (IGU) fully supported as needed by QA Production

Standards at Alpen HPP as well as GANA Glazing Guidelines.


for 925 & 525 Glass

3.) This picture shows how the glazing stop needs to “wedge under” the glass and setting blocks to get it

installed properly.


for 925 & 525 Glass

4.) This picture shows that we cut a ¼” off of one of the 1/16” x 1 ½” x 1 ½” setting blocks and set that

down in the glazing pocket first to bridge the gap left by the glazing stop profile and to assure that that

“bottom shelf” on the Low Profile PW, High Profile PW Frame and Casement/Awning Frame is

supporting the exterior glass lite.


for 925 & 525 Glass

5.) We then stack two full 1/16” x 1 ½” x 1 ½” setting blocks on top of the one we cut ¼” off of to extend

the support to the top of the glazing stop itself so that the Glazing stop will support the inner lite of

glass. This creates a 3/16” Total Setting Block Depth.


for 925 & 525 Glass

Old Style Profile 925 & 525 Glazing Bead

The old style glazing bead has a piece of glazing stop and an adaptor strip that it snaps into once the

adaptor strip has been put inside the channel of the window frame or glazing pocket. The “hook” on the

glazing bead snaps into the square channel in the adaptor strip.

** If ever replacing the OLD STYLE Glazing Bead with the New Style Glazing Bead, you need to cut the

Adaptor Strip that accepts the OLD STYLE Glazing Bead, which is placed in the frame with a sharp Razor

Blade and remove it with a pair of needle nose pliars. The placement of the Original Setting Blocks will

also have to be amended for the New Style Glazing stop to fit properly.


for 925 & 525 Glass

New Style Profile 925 & 525 Glazing Bead

The glazing bead formed is in one solid piece. The new profile has the adaptor strip molded into the

glazing bead. The adaptor strip still fits inside the channel of the window frame or glazing pocket. The

small edge along the wider side snaps behind the window frame keeping it secure and tight against the

glass.

= The Hook / Edge of the Glazing Bead that replaces the Old Adaptor Strip and fits into the frame

behind the glass

= The Hook / Edge of the Glazing Bead that snaps behind the Frame to hold the glazing stop in

place and allows it to place pressure to the glass. This edge needs to be released from behind the frame

in order to remove the glazing stop

Documents

Alpen HPP Glazing Procedures€¦ · Alpen HPP Glazing Procedures for 925 & 525 Glass Tools you will need. FLAT RAZOR BLADES ... APPLY DOUBLE SIDED GLAZING TAPE (TOP, SIDES, BOTTOM,)