Foam Roll 4mm 1 x 50m - Per Roll

Thickness: 4 mm; Width: 1 m; Length: 50 m per roll. Material: polyethylene foam with a durable outer skin. Features: waterproof and weatherproof for indoor and outdoor use. It also has an R-value listed as 4.1 m2K/W for its thermal performance.

The 4mm roll is thinner and more flexible, making it ideal for tight spaces and lighter insulation needs. Thicker rolls (6 mm or 9 mm) provide higher insulation (higher R-value) and greater cushioning, but are bulkier and may be harder to fit in small gaps.

Use it for HVAC duct insulation, sealing gaps around pipes and fixtures, insulating walls or ceilings in light-duty projects, and providing weatherproof cushioning for indoor or outdoor installations.

Unroll to the required length, cut to size with sharp scissors or a utility knife, wrap or lay the foam where insulation or cushioning is needed, and seal seams with appropriate tape or adhesive. Press edges firmly to ensure a snug fit and minimize gaps.

It's suitable for walls, ceilings, pipes, ducts, and other surfaces where thin wall insulation or gap-filling is needed. The outer skin provides water/dust resistance, helping it hold up in indoor and outdoor environments.

Polyethylene foam is generally inert and non-toxic. The product is designed for indoor and outdoor use with a weatherproof outer layer. As with any insulation material, avoid open flames and follow standard safety practices when cutting or handling.

One roll covers about 50 m² (1 m width × 50 m length). To estimate: divide your total area by 50 m² to get the number of rolls required. For example, 75 m² would need about 1.5 rolls (round up to 2 rolls).

For thicker options, check: Foam Roll 6mm 50m - Per Roll: https://fepy.com/product/foam-roll-6mm-50m and Foam Roll 9mm 50m - Per Roll: https://fepy.com/product/foam-roll-9mm-50m. These provide higher insulation values and different fit considerations.

In general, thicker rolls cost more per roll but provide greater insulation and cushioning. Since each roll covers 50 m², the price-per-square-meter improves with the amount of insulation needed, so choose thickness based on the required thermal performance and fit.

Yes. Use a sharp utility knife or scissors to cut to length, and trim edges as needed. The foam is lightweight and easy to mold to curves or around edges.

If the foam roll doesn’t meet your expectations, you can initiate a return within the standard return window for unused items. Please follow the return process outlined by Fepy for eligibility and instructions.