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It is a light weight bitumen polyester based underlayment covered with a polypropylene film on both sides.
Easy, quick and clean to install, it is a multi-purpose underslating primarily used for roof shingles but also for
other roofing materials like clay and concrete tiles, metal sheets, corrugated sheets, …
Is Armourbase Pro waterproof, even when you penetrate it with nails?
And is the Armourbase Pro strong?
Check the results of our tensile strength test, involving some trucks.
Application instructions
Install as flat as possible to prevent unevenness from being projected in the shingle surface. Install parallel to the eaves.
Slopes 9,5°- 20°
use IKO Armourbase underlay PRO to provide a double coverage of underlay to the roof deck. Cut a starter strip 50 cm wide and lay succeeding courses fastened with 50 cm horizontal laps and 30 cm end laps.
Slopes 21°- 85°
The entire roof deck should be covered with IKO Armourbase underlay or an approved shingle underlay.
The underlay should be installed parallel to the eaves with a min. 10 cm horizontal lap and 15 cm end laps.
On all IKO Armourbase underlayments there are 10 cm lines on the rolls for easier overlapping.
Secure the underlay with only enough nails to hold it in place.
IKO Armourbase Pro PLUS has all the features of the Armourbase PRO underlayment and goes even a step further…
IKO Armourbase Pro PLUS is a modern and flexible bituminous roof underlayment with bituminous strips for adhesion of overlapping.
Thanks to these self-adhesive overlaps , one does NOT have to overlap by 50% at low slope (15-20°):
in other words saving money and time!
This also creates an increased protection against the risk of water infiltration along the area of mechanical fixing.
Application instructions
Install as flat as possible to prevent unevenness from being projected in the shingle surface. Install parallel to the eaves.
Slopes 9,5°- 20°
use about 80% less material or save more than 40% of your costs compared to the 50 cm overlapping method with Eco and Pro and use IKO Armourbase Pro PLUS.
Unique product in the underlayment range!
Slopes 21°- 85°
The entire roof deck should be covered with IKO Armourbase underlay or an approved shingle underlay.
The underlay should be installed parallel to the eaves with a min. 10 cm horizontal lap and 15 cm end laps.
On all IKO Armourbase underlayments there are 10 cm lines on the rolls for easier overlapping.
Secure the underlay with only enough nails to hold it in place.