Backer Rod Around Tub

Clean all surfaces to you want the caulking material to adhere.

Backer rod around tub.

Caulk backer rod to help fill gaps and openings in pavement cracks wall joints foundations sidewalks and driveways. The silicone joint is supposed to be twice as wide as it is deep. The proper way is to leave a 1 8 inch gap between tile tub. Fill the gap between the tile and the tub with caulk.

Above the lip of the tub. The backer rod helps before caulking use the md building products 1 2 in. Use a putty knife to. Doors and windows are not the only places where heat and conditioned air leakage occurs.

Any gaps that are wider or deeper than this should use backing material such as this caulk backer rod available on amazon to fill in the gap and allow the caulk to sit securely across the. Remove old sealant with caulk remover. They can be made of several different materials. This is based on the joint being deep enough so you can apply between a 1 8 to 1 4 thick sealant on top if allowed by the sealant manufacturer.

Use a cloth and water diluted detergent to scrub. Backer rods are flexible foam tubes of different densities. Fill the joint with backer rod then caulk with 100 silicone. The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area.

In some cases you may need an l shaped tub flange to fill in a gap between the wall and your bathtub. Based on your description that when the tub is full of water the joint is less than 1 4 wide i would put in the 1 4 backer rod with the tub full of water and apply the sealant without water in the tub. First you would waterproof with your favorite liquid waterproofing membrane of choice. There should be a small gap between the backerboard and the tub.

There are many places around your house where energy is wasted. Apply it directly onto the sealant to loosen it. After you have pushed the backer rod into place apply caulk on both sides of the rod to secure it in place. That s the by the book way of treating that joint.

In these photos i used a hydro ban. How to use backer rod caulking material step 1. Apply it to the wall with the bottom edge about 1 4 in. Then apply a generous amount of thin set to the bottom bathtub tile and position it 1 8 in.