IKO Mastics

Mastic is an important product to use during application of roof shingles.
IKO mastics allow you to work in highly windy areas, on slopes greater than 60° and in colder weather conditions.
All IKO mastics are 100 % compatible with IKO roof shingles

You would need mastics to ensure the waterproof tightness of your roof details at the rakes, flashings, valleys, windows,...

Although roof shingles are nailed, extra bituminous mastic should be added when roof shingles are installed in areas with a lot of wind
OR in winter time IKO also recommends to seal the roof shingles with extra bituminous mastic.

Beware not to use just any brand of bituminous mastic in combination with bitumen roof shingles.