Arriving under the cover of darkness, usually around the time of our first snowfall, this little fellow will slip into your home.
While visions of sugarplums dance in your head, he’ll open up his bag of goods in your living room and begin his night’s work. The only problem is, this little fellow ain’t Santa Claus, and he’s no jolly elf.
The fact is your unexpected guest is an ogre by the name of Charles W. Cracks, with the W standing for willfully. His eyes don’t twinkle, and his dimples are about as merry as roadway potholes.
His cheeks are like roses, and his nose is like a cherry, although not so much coloured by participating in a healthy outdoor life, but more related to his six-pack-a-day smoking habit, and topped up flask of rot-gut brandy in his breast pocket.
Upon opening his sack, there are no presents to be found, but instead a large assortment of pry bars and chisels.
Alas, the Ogre of Cracks is not here to deliver cheer, but instead will get to work on separating miter joints from between moldings, and creating the heartbreaking and ultimately most disappointing drywall crack of all time— that being the separation of where ceiling meet walls. The thing about miter joints separating and cracks developing along your ceiling line, is that they’re the product of humidity, the physics of cold meeting hot, along with various atmospheric conditions.
Which, sorry to say, makes the homeowner’s ability to control these eyesores about as likely as hiding behind the big sofa into the wee hours of the night, and successfully catching the Crack Ogre as he descends the chimney.
Now, however bleak the reality of being able to prevent cracks, there are ways of lessening the extent of your casing and baseboards separating.
Crack preventing remedy No.1: control the humidity levels in the home by investing in a HRV (heat recovery ventilation) unit.
In the olden days, we had to rely on signals such as a dry throat and nosebleeds to let us know the air in the home was a little dry, or frost on the windows to remind us that it’s time to ease up on the pasta making. Which, would have us either opening windows or setting pots of water about the home to counteract dry or wet atmospheric conditions.
So, you can stick with that rather unscientific strategy, or invest in the mechanics of a HRV. Not only will your HRV regulate indoor humidity levels, which will vary throughout the year due to changing outdoor temperatures, but the HRV will also circulate and clean your household air 24/7.
Further to a HRV is a humidifier, which like the HRV, will work in conjunction with your furnace to efficiently distribute quality air into every room of the home.
Crack remedy No.2: fill the miter gaps with a paintable/flexible quality caulking. When cracks develop where the walls meet the ceiling, you’ve got a situation referred to as truss lift.
The good news about truss lift is that it’s a non-structural situation, so it’s not really affecting the home in any type of supportive, or building, manner— other than being simply unattractive. The bad news about truss lift is that once your home develops it, it tends to come back every winter.
Truss lift occurs when the trusses pry themselves off the partition walls in a home. Why trusses move in this way can be attributed to moisture conditions in the attic, whereby some trusses fall victim to condensation, and swell up in the cold, while the trusses buried in the insulation stay dry, and shrink slightly in the cold. Where shrink meets swell you get movement.
Solution? None that aren’t excessively intrusive or costly.
Remedy? Install a crown molding, or large cove molding to the ceiling only (not the wall), along the perimeter of the room. This way, when the ceiling lifts, the decorative molding moves with it, and nothing cracks.