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When it comes to how to paint a brick chimney, consider that standard paint can seal in moisture and cause serious chimney problems. Instead, use a vapor-permeable sealant. You’ll first scrub and sand the chimney; then, you can patch any gaps with caulk and apply the sealant. We recommend hiring a pro for this job since it entails working on the roof, which comes with a lot of necessary safety precautions.

Handbuilt masonry fireplaces are likely what comes to mind when we think about curling up by the fire at the end of the day. But bricks in the firebox and chimney tend to be heavy, which is not ideal for homes with weak or damaged foundations.

Prefabricated fireboxes come with a full flue and chimney system, significantly reducing the price and installation time. However, if you need to replace the panels down the line, you are locked into the same model or something very similar.

You should use cement for a chimney crown. The purpose of the chimney crown is to protect the mortar below from water damage and the effects of weather. For this reason, chimney crowns should only be made using cement. When repairing a crown, use caulks and sealants designed for cement repair rather than mortar repair.

It is possible, albeit a lot slower, to break up a rock using water. You would do this by freezing and thawing the water. You could create some initial holes or cracks in the rock, then pour water into the cracks or holes and allow them to freeze (so it's best to do this in winter or in colder climates). Since water expands when it freezes, this puts pressure on the inside of the rock and causes it to crack. You could continue to pour more water in and let it freeze to continue to break up the rock.