WEEP
HOLES
The lower perimeter pieces for both sloped or vertical glazing should
have weep holes drilled through the bottom (use the weep hole started
groove as a guide). Drill a 3/16” hole through the bottom and
through the center screw channel approximately every 18”. On
wider panels, you may also wish to drill a 1/8” hole under the
upper gasket channel to supplement the drainage of condensate (in addition
to the side drainage channels discussed in the FLASHING section). This
hole is made by the use of a 1/8” bit through the 3/16” weep
hole. When drilling weep holes in the Thermal Break material it may
be necessary to fill the bottom of the extrusion with sealant if the
drill bit cuts through the bottom of the thermal break material.
If using thermal break you may cut through the insulating material when
you drill the weep hole. Be sure to have blind flashing beneath the perimeter
pieces as detailed above. It is not necessary to fill the hole as any
moisture will run down over the blind flashing.
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