Installation Guide

Roof Vent Recommendation for High Wind Areas
If you get strong wind gusts, we recommend protecting your roof vents and openers with restraint
cables. Roof vent restraints can be purchased from Exaco Trading (US distributor of Rigas) or can be
made, they are not a standard part from the Riga manufacturer.
Two restraints are used for each window; one on each side of the window. Install each loop between
two flat washers on screws inserted into the channel. Position the restraint as illustrated and adjust as
needed to avoid interference from the crossbar as the window is raised and lowered.
Y
ou can make your own restraints from
1/16 “ stainless wire rope,stranded 7x19 for maximum flexibility.
Overall length should be about 16”. When installed near the crossbar, they will limit the window
opening to less than the safe extents of the hinge and window opener, but greater than the maximum
thermal extent of the opener. More important than the exact length of the restraint is a close length
match for each window’s pair. If you are not equipped to swage the binding sleeves you can use wire
rope clamps.
*Only need 1 washer on top of the cable