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Can Insulation Get Wet?

Yes, most types of insulation can get wet and hold moisture. However, there are ways to dry out the insulation and solutions to prevent it getting wet in the first place.

We’ll take a look at what types of insulation can get wet, which insulations are water repellent, and what to do if your insulation gets wet.

What Types of Insulation Retain Water?

Almost every type of insulation can get wet. However, the moisture will then be held in the insulation, and it will be very difficult to dry out.

Wet insulation will also be very heavy, which can lead to a number of problems, such as the insulation collapsing, the weight of the water causing the roof to collapse, and more.

The worst type of insulation for retaining water is fibreglass. It will hold the most moisture and take the longest to dry out. Cellulose and mineral wool are two other types of insulation that will hold a significant amount of water.

What to do if Insulation Gets Wet?

If your insulation gets wet, you’ll need to take action as soon as possible. The first step is to dry out the insulation. This can be done by using a dehumidifier or air conditioner. You may also need to remove the insulation from its application and clean it off to stop mould forming.

If mould does form, then it’s best to remove and replace the insulation. This is because mould will cause the insulation to break down over time and become less effective. Mould is also dangerous in the home and can lead to health problems.

If the insulation is still wet, you may need to replace it. This is especially true for fibreglass insulation, which can be difficult to dry out completely.

If your insulation gets wet and you are still unsure what to do or not confident enough to try any of the above, then it’s best to call in a professional to assess the situation.

How To Prevent Insulation From Getting Wet?

There are a few steps you can take to prevent your insulation from getting wet:

– Make sure your roof and gutters are in good condition and are properly draining

– Keep your home well ventilated, especially in the attic

– Add technical insulation around pipes and other objects that could cause water damage

– Use a water repellent insulation, like spray foam or closed-cell foam insulation

– Cover your insulation with a moisture barrier, like plastic sheeting

If you follow these steps, you can rest assured that your insulation will stay dry and in good condition.

What Insulation is Waterproof or Water Repellent?

There are a few types of insulation that are waterproof or water repellent.

Rockwool insulation is water repellent due to the resin bond it’s covered in. Rockwool manufactures a range of acoustic insulation slabs, such as RWA45 and Flexi Slabs.

These types of insulation are ideal for areas that are prone to moisture, like basements and bathrooms. They will prevent mold and mildew from forming, and they will also hold up against water damage.

Insulation boards tend to have good moisture resistant and water repellent qualities. A product such as EcoTherm Insulation Board for instance has aluminium foil facings on both sides, and a PIR foam that is resistant to water.

It’s worth noting that these types of insulation can get wet if the insulation gets damaged, so it’s always worth checking the condition of your insulation regularly.

If you’re looking for insulation that is resistant to water damage, then spray foam or closed-cell foam insulation are the best options. They will keep your home well insulated and dry, no matter what the weather throws at them.

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