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Maintenance of Foam Board Insulation

2400mm x 1200mm PIR board for wall insulation

Does Foam Board Insulation Need to be Replaced?

The lifespan of foam board insulation varies depending on the type. Over time, factors such as general wear and tear, water damage, fire damage, and pest exposure can reduce its R-Value. Here is a summary of the estimated lifespan for each type of insulation board:

Insulation Type Lifespan
Polyiso (Polyisocyanurate) 15 - 20 years
Polyurethane 50 years
Expanded Polystyrene (EPS) 30 - 50 years
Extruded Polystyrene 15 - 50 years

Comparision of GFI PIR Foam Duct Panel

Can You Paint Over Foam Board Insulation?

Yes, you can paint over PIR thermal insulation board if you cannot cover it with drywall. Follow these steps for the best results:

1.Sanding:

Lightly sand the edges of the insulation with sandpaper to achieve a smooth finish. Wear a face mask to protect yourself from dust.

2.Painting:

Apply two or three coats of paint for sufficient coverage, allowing the paint to properly fill the pores of the foam. If using a spray gun, hold it at a distance to prevent dripping.

3.Waxing:

Once the paint is completely dry, apply a wax sealant over the surface to protect the paint.

Can You Use Batt Insulation with Foam Board Insulation?

Yes, you can use batt insulation in conjunction with Polyurethane insulation board to enhance the overall R-Value and provide an additional moisture barrier. This combination is commonly used in areas such as exterior walls, bathrooms, basements, and ceilings. However, avoid using insulation boards with mineral wool, as the former is flammable and the latter is fire-resistant.

cheapest pir wall roof insulation board

Great Competitive Trade Prices for Foam Board Insulation

At Building Materials Nationwide, we offer a wide range of thermal and acoustic insulation products, including foam board insulation. Whether you need insulation boards for walls or roof, we provide high-quality products with quick delivery options. Welcome to inquire now.

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