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Follow our application instructions to make sure your roof is installed perfectly!
How can I prevent buckled shingles?
- Use only wood decking materials approved by the roofing manufacturer. These materials must be properly conditioned to be at moisture equilibrium with the job site environment.
- Do not expose decking materials to water before or after application.
- Cover wood deck materials with an approved IKO Armourbase underlayment and then apply shingles.
- Ensure adequate attic ventilation. See individual manufacturer’s recommendations for additional ventilation requirements.
- Apply shingles in accordance with IKO shingle manufacturers’ recommendations.
Wood will expand when it gets wet. Even increases in the moisture conditions around the decking lumber can cause expansion. The tendency of this expansion will cause buckling of shingles on the roof. If possible, always allow the decking material to acclimatize to the conditions where they are being installed.
>>> BLOG TIP: Learn more on how to ensure a stable roof deck.
Some additional tips:
- For the best result use OSB boards in tongue and groove. Then it is not necessary to foresee a 3 mm spacing between the boards because the dilatation gap is in the lock.
- It is always better to cover old wooden boards sheathing with a new layer of thin OSB boards.
- If you are forced to apply wooden boards for decking, try to use boards with shiplap or tongue & groove joints.
- Always use a proper fastener for decking: use long enough nails with ringed or twisted shank.
- The best option for the fastening of shingles is IKO barbed roofing nails or coiled roofing nails when using a nail gun.
- The fastest way to repair an unventilated roof is to install Armourvent Multi ridge ventilation.
Pictured: Tongue & groove joint (left) - Shiplap joint (right)
So if you follow our installation guidelines and avoid the traps mentioned above, your IKO roof will not suffer from buckled shingles. Good luck!
Application instructions
Easy application ('for professional roofers):
- Base is a wooden or concrete underdeck construction with a waterproof IKO underlayment.
- Apply roof shingles with IKO nails.
- You would need +/- 35 pc/m². Valley, hips and ridges are easy to install without purchasing a huge range of extra accessories.
Foresee solid insulation and also good ventilation for an optimal and long-lasting roof - improving heating and cooling costs.
Eaves, rakes, walls, chimneys, roof windows, etc. require metal flashings.
Roof shingle with ±1500 gr APP modified bitumen per m²
Every IKO shingle obtained the ETA (European Technical Assessment), which proofs that all IKO roof shingles are made with care to provide an outstanding quality. But with the Monarch APP modified roof shingle, an even better level of roofing material has been reached. This premium roof shingle is manufactured with ±1500 gr APP modified bitumen per m². These high-quality APP modified shingles, based on bitumen and Atactic Polypropylene (APP) polymers, have several nice advantages
Calculate how many shingles and accessories you need for your next project!
APP modified means excellent UV protection
One of the advantages our finest APP modified roof shingle is the additional UV Protection. Thanks to the colourful granules on top of the shingles, every IKO roof shingle already offers a certain amount of protection against UV radiation. But adding up to ±1500 gr APP modified bitumen per m² only increases the resistance against damaging UV rays. That is one of the reasons why we are able to offer a 25 years total warranty on the thicker Monarch a shingle, of which we offer 10 years Platinum warranty.
High mechanical resistance
Other important advantages are the extraordinary characteristics. When going through the Monarch roof shingles specifications, you’ll see they score great numbers on the high mechanical resistance. The tensile strength (capacity to withstand loads tending to elongate) of the Monarch roof shingle is 1000 N/50 mm and 600 N/50 mm (tensile width), which makes it one of the best IKO roof shingles. The nail tear resistance is even more impressive, with an average registered value of 165N.
