A.Determine the extremes of joint movement using a scribe kit (available from sealant manufacturer); measurement of anticipated and known joint movement is necessary in determining the appropriate size of tee cap to use.
3.02 PREPARATION
A.Verify that joints to have stone flashing strips are raked or cut out to the correct depth and clean.
3.03 INSTALLATION
NOTE: WEAR GLOVES WHEN WORKING WITH LEAD PRODUCTS AND WASH HANDS THOROUGHLY WHEN FINISHED WITH WORK.
A. Fitting Tee Cap:
Mark off width of selected tee cap on the masonry/stone surface and apply 1" masking tape lateral to marks.
Pre-fit or shape and cut tee cap strips to closely conform to the profile of the stone substrate as required before setting.
Select width to overlap joint edges not less than 1/8" .
Cut strips to lay in a single full length of each joint wherever possible with an end turn-down over front and back faces of ledges and copings a minimum of 1" or to drop edge.
Make all joints in tee cap neatly mitered, coped, or butted to produce close fitting, weather resisting joint protection; notch strips as recommended by manufacturer.
Apply metal primer to tee cap if required.
B.Sealing and Installing Tee Cap: Install sealants in accordance with manufacturer's recommendations.
If required, install backer rod to a depth of 1/4" below tip of anchor shaft when tee cap is set in place.
Prime stone, if required.
Fill joint with sealant to a height of approximately 1/8" above the adjacent masonry surface. Follow manufacturer's instructions.
Set preformed tee cap strip into the sealant bed, pressed down firmly to the stone surface so bonding grooves are solidly filled and no voids exist between tee cap and masonry.
Clean off excess sealant compound using a putty knife and leave adjacent masonry clean.
Carefully remove masking tape from adjacent surfaces.
