Stuccocovered chimneys structure tech home inspections. This is a sign of structural damage, usually related to a weak wall. Expansion, wind and stress all play vital roles in why cracking occurs. Quick repair will keep water out of chimney chicago tribune. Btw, the homeowner did a great job sending me a few pictures of the chimney so i could bid it by email.
The hairline cracks you see now will telegraph through the new stucco and your chimney will look horrible in. If the damage is merely aesthetic, such as a hairline crack on the surface of your chimney stucco, repair is relatively simple. Plasteringconcreteteachingtoolsplasterinstrumentseducationappliance onderwijs. Use caulk gun to apply stucco repair compound along the crack. There are two types of stucco houses, one that is cracked and ones that are going to. In cement style stucco, cracking can occur for several different reasons. In many cases, cracks can also occur, but often this is not related to moisture. The oustide concrete for the furnace chimney has cracked and some. Fyi, most stucco and concrete mixes use portland cement as a binder, for example.
Download premium images you cant get anywhere else. Once the top develops cracks, the water slowly works its way downward and slowly deteriorates the masonry. Cracked concrete block chimneys risk unsafe chimney flues, presenting fire and flue gas hazards in buildings both outdoors and indoors we may also see chimney cracks which could be due to chimney movement introduced above or due to compression loads or other chimney construction problems photograph below. The chimneys were looking out for are stucco covered chimneys on homes built during the 1920s and 1930s. The edges of the crack should be chiseled perpendicular to the wall. We knocked off the top 6 ft last year, above roof level as there were many cracked bricks and loose mortar. Cracks that cause concern are those which run across the length of a ceiling and then continue down a wall along the same line. Portland cement stucco cracks develop for many reasons.
Cracking is inevitable when it comes to stucco, just like any type of cement based product. This chimney did not have a drip edge or an effective crown so all of the water was soaking into the bricks and causing the bricks to spall and. Patching cracked and buckled cementplaster siding diy stucco exterior. Need advice on cinder block external chimney repair and.
Plywood installation is probably the leading cause of cracks in stucco. Most small cracks in drywall or plaster walls are not serious and are caused by seasonal expansion and contraction of the wood framing in. Id need to see some photos one per comment to make more specific. Cracks caused by plywood are distinguished by the directions they take. Repairing cracked walls using brickfix helical bar and grout. Do cracks in my walls indicate a structural problem. Then, we can apply new stucco that is protected from direct contact with the previous crack. The scratch coat can be applied by hand or by machine but its surface layer must have horizontal or crisscross pattern troweled into it for added stability of the next layer. To repair stucco, you can use any number of commercially sold products. Find highquality stucco chimney stock photos and editorial news pictures from getty images.
If cracks exceed 332 it is unacceptable and should be repaired. The photos below show some examples of these chimneys. Fix stucco chimney exterior crack repair waterproof flue guru. Other issues that cause cracking issues in plaster can be. You can even choose a new exterior style for your chimney. Stucco is one of the longestlasting and lowmaintenance siding options for homes, which is why so many houses in the san francisco area sport this classic look. Using a cold chisel and hammer, widen the crack to at least a quarter inch. We took photos of the cracks, we put these photos in our home inspection report, and we recommended having the stucco repaired. There are also tubes that do not require a caulking gun. Brick mailboxbrick fencehelical barstucco mixbrick repaircracked wallblock. Do not allow masons to talk you into adding stucco on top of the existing stucco. Water running off of the roof caused this stain by dripping down and keeping the chimney damp. While some stucco problems are not related to the way the stucco was put in place, many issues can happen with both conventional and newer styles of stucco if they are not installed properly. The addition of stone veneer can turn an ordinary wall, column or fireplace into an.
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