What Is Sill Seal

Sill seal is a gasket installed on exterior walls to fill the gap between the sill plate and the foundation wall.

What is sill seal. Sill seal is ribbed polyethylene foam used to seal the gap between the sill plate and the foundation. Sill sealer about the product. As they build the walls they use a piece of lumber or steel as a base to support each wall. A sill sealer is a type of insulation used at the base of exterior walls.

During the home building process builders first construct the floors out of wood or concrete. It is made of polyethylene foam and it is durable and moisture resistant. While most products are relatively easy to use and provide an adequate capillary break the seal part of the equation is. It creates a tight uniform fit and eliminates heat loss due to air penetration.

I am a big fan of grinding top of foundation prior to framing to knock. Fasten the sill plate to the concrete slab following the recommendations of the local building code. Lightweight and resilient it is easy to cut to length and installs without tools. The ribs effectively seal out air currents moisture and insects leaving you worry free to enjoy your home.

This base or sill is fastened to the. Sill seal foam gasket is a flexible polyethylene foam gasketing strip that can help reduce air infiltration between a concrete foundation and sill plate. Additionally it can be used to seal around window and door frames. I will use it and set it in from the exterior edge of the sill 1 2 and then caulk the exterior concrete sill joint for air sealing.

The foam or sill sealer provides a compressive material that fills in the gaps under the sill plate and the foundation wall. It can be used in new construction and retrofit applications. The reflectix sill sealer is a closed cell product designed to reduce air leakage between the foundation wall and the sill plate. If you ve made it to this page it s because you know something s not right with most sill seal products.

Some codes require that the sill plate be bolted to the slab while others recommend a metal strap. Pink foam sill sealer is easily installed without special tools a simple effective long lasting solution to air infiltration foamsealr sill plate gasket provides a seal against air leakage moisture and insect intrusion at the juncture of the foundation wall and sill plate in new and retrofit construction. The product is applicable for residential and commercial construction slab on grade and in crawl spaces or. Sill seal is a capillary break.

The application of the sill plate on the top of a foundation wall is usually over a sill sealer which is a foam or synthetic material to allow the plate to sit fully on the top of the concrete wall.