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What size lumber would be recommended for the bottom chord on a truss to span a 30 foot clear span pole barn with a osb board and asphalt shingle roofing?
Trusses are engineered components of a building, based on live loads, pitch, span, spacing, other loads that may be placed within the trusses, like attic storage, etc. If you're building to code and with a permit and will be inspected, you will need to present the engineering sheet that comes with a truss order. If you are building them yourself,(which is not legal in most jurisdictions anymore), you should at least work from a set of pre-engineered truss plans. The Extension Service, serving most counties in America, used to offer a book with an assortment of truss plans. I don't know if it is still available. You will find, however, that to build your own trusses you will invest more in nails and gusset material and lumber than it would cost to have them built by a truss plant. As to the size of the bottom cord on a 30' span, they can be sized from 2 X 4 up to 2 X 12, or even greater if they are timber trusses or will be used to support loads such as an overhead trolly. But each truss itself is a set of components all working together to achieve the desired strength, with the bottom cord being just one of those components. And the spacing and bracing of trusses to each other is of equal importance to achieve adequate strength in the building.
What else can I help you with?
How to install asphalt shingle roofing on a house?
To install asphalt shingle roofing on a house, start by preparing the roof deck with underlayment and flashing. Then, begin laying the shingles from the bottom up, overlapping each row to ensure proper water drainage. Secure the shingles with nails and finish with ridge caps for a clean edge.
What is the best way to shingle a peak with asphalt shingles?
The best way to shingle a peak with asphalt shingles is to stabilize boards along the peak for safety. Continue to shingle the asphalt shingles to the peak working from the bottom edges of the roof peak. Nail two nails on the lower portion on both sides to hold in place. Continue until finished.
What then is the rake of a roof?
The rake is the edge of the roof that is not the eave where water drains off. On this edge are the cut off ends of the roofing material as opposed to the bottom edge of the shingle, which is a factory cut. This edge does not exist if there is a hip, the inverse of a valley.
What is curled when talking about shingles for your roof?
Shingles curl up at bottom of shingle.
How do I repair a leaking roof?
One of the most important safety tools youll need is a good pair of rubber soled shoes. For a shingle roof, once you find the leak look for damage, a cracked or missing shingle may just need replacing. If no damage can be seen you will need to call a professional. To repair curled back shingle, use asphalt roof cement. In the summer a curled back shingle can to easily straighten out, but in the winter a shingle can become brittle. To soften a cold brittle shingle, careful use a propane torch with a flame-spreader nozzle. Apply heat only to soften, not until it catches fire. Once flatten apply roof cement generously to the bottom and edges and press firmly into place.
How can I effectively shingle a hip roof to ensure proper installation and protection for my home?
To effectively shingle a hip roof for proper installation and protection, start by measuring and cutting the shingles to fit the angles of the roof. Begin at the bottom edge and work your way up, overlapping each row to prevent water leakage. Use roofing nails to secure the shingles in place, making sure to follow manufacturer guidelines for spacing and placement. Finally, apply a layer of roofing cement along the edges and ridges for added protection against leaks.
How do you install dimensional shingles over 3 tab shingles?
Complete instructions should be included on the shingle package, but essentially what you will be doing is placing the top of the new shingle against the bottom edge of the old shingle, assuming the exposure of the shingles is the same.
Does roofing paper go horizontal or vertical?
Roofing paper is laid horizontally, starting at the bottom edge of the roof with the next row overlapping the the row below it.
What is the recommended size for a bottom bracket to be used with a 68mm bottom bracket shell?
The recommended size for a bottom bracket to be used with a 68mm bottom bracket shell is 68mm.
What is the recommended size for a BSA bottom bracket that is compatible with a 73mm bottom bracket shell?
The recommended size for a BSA bottom bracket that is compatible with a 73mm bottom bracket shell is 68mm.
What is the recommended size for a bottom bracket to be used with a 68 mm bottom bracket shell?
The recommended size for a bottom bracket to be used with a 68 mm bottom bracket shell is 68 mm.
The Importance of Roof Shingles?
Shingles that are put on the roof of a home are a covering with overlapping slaps. These slabs are flat and usually rectangular. Just one single layer should make sure that no water is able to get into the home because of the overlapping design. To apply them, you must start at the very bottom of the roof, and work your way up to the top. The edge at the bottom of each row goes over top of the previous line by covering roughly one third of that shingle. Each shingle is easily secured in place with a hammer and some nails. Some people may also use a nail gun to make the job go a lot faster. Others may even use a staple gun, but it is less recommended as staples may come back out. At the tip of the roof, there is a ridge where the two sides meet. At this ridge, there is normally a sheet of metal or plastic that covers the crack. On top of that, there are special shingles that are curved to be like a cap. Shingles have been made of many different materials. The most common have been asbestos-cement, slate, ceramic, and wood. Wood and paper-based asphalt are becoming less common because they are prone to being hazardous towards fire. Wood was mostly used when buildings were made almost all of wood, and in the European countries. It is also less used because it rots away in time. Fiberglass asphalt shingles are taking over the lead role. They are used on a majority of roofing jobs in homes. These asphalt shingles last longer when it is cold outside, but should be applied when it is hot out. The reason that are more durable in cold climate is because of thermal shock. This occurs when the temperature quickly changes by more than a few degrees. Shingles for the roof should be applied in the summer because the tiles need heat and sun so they can be sealed to the shingle below. So, before you even start, you need to make sure to know exactly which kind of shingle you are buying.
