![]() ![]() I noticed my client login states that it is closed because my project is completed. My question is will the roof support the added load and will I be creating a major problem with mill due and condensation, since there will be no airspace between the metal and sheetrock? Your help would greatly be appreciated. I want to cover the rafters and trusses with ½” thick sheetrock, then paint to hide the added insulation and wiring. There are two double trusses 7” apart and spaced at 12 foot centers in the middle. The 2” x 6” rafters are spaced 24” on center the length of the barn. I have added R21 paper backed fiberglass insulation in between the rafters. It is to hot in the summer and to cold in the winter to enjoy, (conveting it into a Mancave). It came with a 24′ x 36′ pole barn with a corrugated steel roof and a ½” thick plastic insulation blanket on the underside of the metal at ceiling. We live in South Eastern Washington State and are the second owners of a home we bought a few years ago. Very helpful web page you have provided to all of us needing to know DIY ers. They stand as a tribute to the ingenuity of modern pole building design. Hundreds of thousands of pole barns are in use today with trusses spaced every 12 feet, or even more. The practicality, cost effectiveness and ease of construction of pole buildings is based upon efficient use of the fewest amount of materials, to do the most work, within safe engineering design. Their programs will allow for trusses to be placed on 12 foot or even 16 foot centers, and their engineers will place their engineer’s seal on the drawings to verify. The manufacturers of the steel roof truss plates (also referred to as gussets or Gang-nails), provide the engineering design for pre-fabricated wood trusses. Their defense is, “Our engineers will not allow us to”. ![]() I’ve had roof truss manufacturers try to convince me it is impossible to place wood trusses at spacings of over every 4 feet. With this design change, roof trusses could be placed 12 feet apart, making it possible for roofs to support the loads to which they would be subjected. It was Perkins who pioneered roof purlins being placed on edge. Howard Doane is credited with being the innovator of the modern pole barn, it was his Agricultural Service farm manager, Bernon Perkins, who is credited with refining the evolution of the modern pole building to a long-lasting structure. They are inanimate! Yet, somewhere in the deep, dark reaches of history, lies the theory wood trusses must be spaced no more than 24” on center, or maybe 48”, or perhaps even eight or ten feet? The reality is, there is no magic number. The lumber and steel plates the trusses are constructed from, have no idea how far apart they are going to be placed. Enter the span of the truss, bay spacing and load conditions and the engineering programs will design a truss which will meet the design criteria. Modern truss design is highly computerized. Hansen Buildings has buildings in each of the 50 states and all of them have roof trusses on what my board member friend would describe as being “widely spaced”. One of my fellow board members from the Midwest wanted to take a peek at how pole barns were constructed in the West, so I invited him out for a tour.Īfter spending a day looking at several of our building projects, his comment to me was, “The inspectors in our area would never let a pole building be constructed with roof trusses placed every 12 feet”. You might want to double check the local historical building registry, as the metal roof and 2x 4" rafters appear much newer then the interior materials.What do you mean they are not 2 feet apart?īack in the day (early 1990’s) I was on the National Frame Builders Association (NFBA) Board of Directors. Note all the wind braces tie into the poles/tree trunks you want to cut out. There actually might be some nicotine toxicity issues if barn was in use recently, termites liked the high humidity conditions of tobacco barns? Reuse the siding for the street side if you really like the Hilly-billy grow barn look.lower property tax & re-sale value. run a cat 5-6 cable to big house for security, phone, and streaming video etc. I'd want some North facing windows by the work area, quality insulated garage doors, and a restroom, maybe a shower? Keep window sills HIGH to reduce amateur burglars. ![]() Build a NEW shop with a metal roof to match the old Tobacco shed, ONE with a FLAT uncracked concrete floor with inbedded hot water heat, AC, R 19 plus walls and R 30 ceiling and gutters and graded up so it NEVER floods, don't forget the vapour barrier under the floor. ![]()
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