Skip to main content
Stesso

Select and Prepare Backer Rod

0:39
4:33
28.7K views

At 0:39 in

Repairing Large Cracks: Using Backer Rod & Big Stretch Caulking

Watch on YouTube

What happens here

Select the appropriate backer rod. The video recommends using a hybrid backer rod, specifically mentioning a Sashco Hybrid Backer Rod. This type of backer rod is ideal because it won't absorb water and sealant/caulking will not stick to it. This non-stick property is crucial because it allows the sealant to adhere only to the two opposing sides of the joint, enabling it to stretch and flex with expansion and contraction, thus preventing cracks. Choose a backer rod size that fits snugly into the hole.

Goal: Choose the correct backer rod for the repair

Tools and materials

  • Sashco Hybrid Backer Rod Sashco — Filling the void behind the hole to provide a surface for sealant and allow for flexibility

What they say

Hide

that the proper way is take backer rods this piece of backer rod fits that space very well so I'll just cut this piece of backer rod you know put it there this is a piece of hybrid back rod from sashco now what this um does is it won't absorb water and the the sealant or caulking won't stick to it what you want is the sealant to to um or caulking to stick to the the two sides the two edges that way any expansion contraction it can stretch and flex I got a couple different

Auto-generated from the video audio.