Technical Specifications

Mongoose
®
Attic Ventilation System for Shingle Roofs
End Cap:
Mongoose has a built-in 9" end cap. Simply fold the extra 9" 8 Mil Polypropylene
material on both ends of the 20' length to create a water tight installation.
8 Mil PVC Cap Seal:
Mongoose is covered with an 8 Mil Polypropylene, UV stable cap which prevents
water from infiltrating into the building even when ridge caps are blown off or
damaged. The cap seal also prevents leakage from high winds blowing water
from gable ends under the ridge cap.
The cap seal is also clearly marked with a center line for accurate installation.
A nail line is aprovided for accurate fastening. Mongoose cap seal was designed
11" wide to accomodate any oversized field cut cap shingles. The cap seal is
easily trimmed with knife or scissors to accomodate smaller ridge caps.
Unique Design of the Ventilation Material:
Our unique design of the ventilation material provides better performance for the Mongoose ridge vent. The
5
/8" thick material on the downslope side is coated with hot melt on two sides–one to hold ventilation material
to the ridge cap seal and the other to adhere to the field shingle. The (A) “L” shape ventilation material has
been separated from the (B)
5
/8" material to provide a gap to allow any water passing through the
5
/8" material
to drop and fall to the down slope (C) and roll off the roof. Should any water in high wind areas get into the
“L” shape material, there is an internal water dam (D) to keep water from entering the slot in the roof, thus
allowing us to pass Dade County 110 MPH wind driven rain test.
10
1
/2"
Cap Shingles