Three-Course Method (Waterproofing)

You are now ready to proceed with your top

tile ashing. Be sure to follow the product

installation instructions to complete the en-

tire installation.

Digital installation instructions are also

available at our website:

www.quickmountpv.com/training/down-

loads.html

For more information on tile roong best

practices and code compliance vist the Tile

Roof Institute's website at:

www.tileroong.org/

925-478-8269 www.quickmountpv.com info@quickmountpv.com

2700 Mitchell Dr., Bldg. 2 Walnut Creek, CA 94598

Waterprooﬁng Tile Roof Mount Sub-Flashing: Three-Course Method

Clean away dust and debris around QBase. Apply a bead of sealant in the shape of an upside

down U on the back side of the sub-ashing.

Dec-2019, Rev 2

WARNING: Quick Mount PV products are NOT designed and should NOT be used for anchoring fall protection equipment.

Install the sub-ashing over the post, making sure

the edge closest to the cone is on the downhill

side.

Apply 1/8" thick layer of roong cement around

the top and sides of the sub-ashing with at least

1" extending past the sides of the ashing onto the

felt. Layer should be about the thickness of a nickel.

While cement is still wet apply 3 pieces of rein-

forcing fabric strips where felt paper and ashing

meet – a 14" strip along the top, and a 10" strip

along each side.

Fasten the sub-ashing into place with two roof-

ing nails, one in each top corner.

Installation Tools Required: gloves, hammer, brush, roong nails, roong cement, trowel, roll of reinforcing fabric

Note: The three-course method may used to ash all QBase tile products as well as the Tile Replacement Mount Base Mount and the Tile Replacement

Conduit Penetration Flashing following the same procedure outlined here.

After rst layer of cement is dry apply second layer

over reinforcing fabric to nish waterproong of

sub-ashing.

NOTE: The TRI/FRSA Florida guidelines indicate

the sub-ashing being ashed using the three-

course method on ALL FOUR SIDES. Alternative

ashing methods may be approved by the AHJ at

their discretion.