Sponge Weatherstrip Seals

Weatherstrips, also referred to as weatherseals, are predominately sponge rubber sections that can be used along the edges of uPVC, wooden and aluminium windows and doors. Their primary function is to fill any gaps between the window or door and its frame. This helps prevent water, air or dust from entering your home and can contribute to lower heating costs by enhancing energy efficiency.

Although most weatherstrips are used within residential and commercial buildings, they can also be utilised automotive applications for sealing doors, windows and trunks to protect the vehicles interior from external elements. Given their role in insulating and preventing water entry, they are an important component for maintaining the integrity and efficiency of every window and door.

Weatherstrips are commonly supplied with a self-adhesive backing that can be stuck onto either the door or door frame. Both placements are complementary and ensure the door effectively blocks environmental elements and conserves energy.

They are usually fitted in a location where they will easily compress when the door is closed. Whilst they are manufactured from materials able to withstand contact with environmental elements such as wind and rain, it is common practice to install the weatherstrip in a sheltered location, such as on the interior of the door frame.

Most weatherstrips are supplied with a self-adhesive backing that allows for easy installation. They can be fitted to either your door or door frame by peeling off the self-adhesive backing and sticking in place. It is best practice to ensure that the surface is clean, dry and free from dust and grease. This will allow the self-adhesive backing to adequately bond to the surface and create a reliable long-term seal.

Weatherstripping is designed to keep out cold air, among other elements. It acts as a barrier to seal gaps and cracks around doors and windows, preventing the infiltration of cold air into a building. This sealing effect not only helps maintain a comfortable indoor temperature during colder months but also contributes to energy efficiency by reducing the demand on your heating system. By blocking drafts, weatherstripping plays an essential role in enhancing the overall insulation of your home. This can lead to improved energy conservation and potentially lower heating costs.

It is essential that your door closes against the weatherstrip to minimise the chance of water or air entering your home. If your door does not properly close against the seal, it could be due to one of the following factors;

Improper Installation: If the weatherstrip is not correctly installed or properly aligned it can hinder the doors ability to close.

Warped or Misaligned Door: Over time doors can warp due to moisture or temperature changes. This warping is common with wooden doors and can prevent them from fitting snugly against the frame or weatherstrip. Additionally, the doors alignment may be off due to loose hinges or settling of the building structure.

Type and Condition: Different types of weatherstripping have varying thicknesses and flexibility. A weatherseal that is too rigid or thick may prevent the door from closing. Over time these sponge rubber seals can also degrade, become compressed or lose their shape. This can effect their function and how well they create a watertight seal.

Obstructions or Debris: Dirt, paint or other debris can accumulate on the weatherstrip or in the door frame. This creates a barrier that can stop the door from properly closing against the frame.

Addressing these issues usually involves adjusting or replacing your exisiting weatherstrip, realigning the door or fixing any structural issues with the frame. In some cases, professional help may be necessary to diagnose and resolve the problem effectively.

Deciding on the best weatherstrip for your window or door may seem like a complicated task. Although this sponge seal may not seem like the most important part of your window or door, it is essential for reducing draughts, water ingress and keeping your home warm and comfortable.

Our extensive range of weatherseals allows you to choose a section that precisely fits the gap you are needing to seal. All of our products are manufactured from high-quality sponge rubber compounds that have been specifically designed for residential and commercial windows and doors.

For further information or technical support with choosing the best replacement section, you can get in touch with our knowledgeable team.