Apply waterproof sealer to masonry chimney
Why it matters
Unprotected masonry absorbs water and cracks when frozen. Water intrusion leads to interior damage, rot, and costly repointing or chimney replacement.
Stop forgetting to do this.
Hearth generates a personalized maintenance schedule so you never miss another apply waterproof sealer to masonry chimney.
How to do it
- 1
Clean chimney exterior thoroughly with wire brush and remove loose mortar
- 2
Allow surface to dry for 48 hours in dry conditions
- 3
Apply first coat of siloxane waterproof sealer with paint roller or sprayer
- 4
Allow first coat to cure per manufacturer instructions (typically 24-48 hours)
- 5
Apply second coat for enhanced protection and durability