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Caulking

What is caulking?

"The rubber part at the joints of the exterior wall" is caulking.

Caulking refers to the process of filling the joints and gaps around sashes and exterior wall materials. (The material used is also called caulking material.)

Although we cannot see the changes, the exterior walls also expand and contract due to changes in temperature and humidity.

Caulking is a very important part of protecting your home, preventing rainwater from entering the house and acting as a cushion to reduce the strain on the house when shaking occurs due to earthquakes, etc. It follows various movements of the exterior wall and maintains airtightness and waterproofing.

Specialty Orton Exceed

No matter how good the paint you use on the exterior walls, if the caulking material does not last long enough, you may need to have repairs done again.
There are many different types of caulking material. You want to use one that will last longer so you can live in your home for a long time.
That's why Nuri-Kaeru is proposing "Auton Exceed."
Ordinary caulking materials maintain their flexibility thanks to "plasticizers." However, over time, the "plasticizers" leak out and harden, causing cracks and stains.
"Auton Exceed" does away with the "plasticizers" that cause deterioration, and by incorporating the polymer diluent "LS Polymer,"
we have succeeded in giving long-lasting flexibility to caulking that tends to harden.

Ingredients of the durable sealant "Orton Exceed"

Special two-sided adhesion

Caulking moves with the swaying of the building. If it does not move with the swaying of the building, it will peel off, so if the caulking is adhered on three sides and only one direction does not move, it tends to break easily. Broken caulking can also cause leaks.
At Nuri-Kaeru, "two-sided adhesion" is the standard specification. We insert something called a bond breaker between the wall and the caulking before construction. Taking this difference into consideration when construction will also affect the lifespan of the caulking.

Deterioration of the sealing

	●Mild
		Hardening This is the least severe stage of deterioration. It feels hard and inelastic when touched.
	●Moderate
		crack Moderate deterioration. Rain leaks may occur.
	●severe
		Peeling and gaps If the sealant peels off, the deterioration will be severe and rainwater will seep into the building through the gaps.
	●Final
		Complete peeling When deterioration reaches the final stage, the sealant is completely gone.

Deterioration of the sealing

	●Mild
	Hardening This is the least severe stage of deterioration. It feels hard and inelastic when touched.
	●Moderate
	crack Moderate deterioration. Rain leaks may occur.
	●severe
	Peeling and gaps If the sealant peels off, the deterioration will be severe and rainwater will seep into the building through the gaps.
	●Final
	Complete peeling When deterioration reaches the final stage, the sealant is completely gone.

Counterattack and additional hit

Just as exterior walls deteriorate over time, caulking also deteriorates due to external influences such as ultraviolet rays and rainwater. As deterioration progresses, there is a risk of leaks, so repairs are essential. At Nuukaeru, we suggest "replacing" or "adding more" depending on the degree of deterioration.
"Replacing" refers to removing all of the existing caulking and applying new caulking material. In contrast, "adding more" is a repair method in which new caulking material is applied on top.
We will take responsibility for diagnosing which repair method is best.

Is your house okay? Signs of aging