Cracking and Crazing

Better Concrete Garage Floors
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Better Concrete Garage Floors

Ten tips for pouring stronger, crack-free concrete slabs. More

Letters
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Letters

Tree roots and foundation cracks; code logic; mixing plastics; site-built arched... More

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Tree Roots and Foundation Cracks

Can the roots of a tree actually dry out the soil beneath a foundation enough to cause the concrete to crack? More

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Fixing Hairline Stucco Cracks

The stucco siding on my client's recently remodeled home has developed some small cracks. My stucco sub wants to patch them with plastic stucco cement and then prime the walls with latex mortar primer, but I'm afraid the problem will resurface. Is there a better way to fix hairline cracks? More

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Concrete Without Steel?

Q: Does the addition of fibers eliminate the need for steel in a concrete-slab basement floor? More

Rebuilding a Chimney Top
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Rebuilding a Chimney Top

Stainless anchors and pressure-injected grout form a strong bond with the original... More

Working With Setting Compounds
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Working With Setting Compounds

These versatile joint compounds are ideal for small jobs, quick repairs, and tough... More

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Leaky Stucco

Q. Leaky Stucco I've discovered leaks in the wall cavities of a large, multifamily building my company recently completed. The building has a three-coat stucco finish, and the leaks seem to be located primarily around the windows. An exploratory hole cut in the drywall revealed that the stucco sub's screws missed the studs quite often during installation of the metal lath, creating lots of holes in the stucco wrap. Could water be getting through (or behind) the stucco and entering the building through these holes? If so, how do I fix the problem? More

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Fixing Cracks in Concrete

Q: What is the best way to seal hairline cracks in a concrete driveway? The products I've found at home centers seem too thick, and my client is concerned that the cracks will get worse during the winter months. More

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Fixing Cracks in Engineered Flooring

Q: Last spring, I installed floating engineered flooring over the original vinyl-covered concrete-slab floor of an old New York City apartment. Even though I followed the manufacturer's installation guidelines, the 8-inch-wide planks began to cup, and cracks measuring 1/32 to 1/16 inch opened up between some of them during the following winter heating season. I assume that the cracks and cupping were caused by this building's wide swings in relative humidity, and that the flooring will return to normal this summer. But my client is unhappy and claims that either the flooring or the installation is defective. Is there a way to remedy this situation, short of removing the flooring and starting over? More

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