12/6/2023 0 Comments Steel sip house![]() ![]() I had never seen or done a blower door test before building with SIPs, and I measured an air leakage rate of 1.7 air changes per hour at 50 Pascals (ACH50) when I tested the house upon completion.Ĭontrolling liquid water is no different than doing so for the other types of structures. Solid insulation embedded in panels means that air sealing should be easier. The advantages of SIPs are reduced thermal bridging and easier control of heat, air, and moisture. You could always put exterior continuous insulation on the outside of the walls or roof to reduce the thermal bridging from the wood splines. Using structural insulated panels for the roof requires wood splines for structural support, but again, they’re 4 feet apart. The standard width for the panels is 4 feet, though, so there’s a lot less thermal bridging with “studs” 4 feet apart rather than 16 inches apart. The house I built used solid wood splines between each two panels. Some eliminate all thermal bridging where the panels join by using connecting pieces (called splines) with foam in the middle. First day of installing structural insulated panelsĭifferent companies have different methods for connecting the panels. ![]() After getting the basement done and a framed floor on top of it, we built all of the above-grade walls and the roof with SIPs. You can see the ones we built with laid out on the floor on our first day of erecting the SIP walls in the photo below. Structural insulated panels are sandwiches of oriented strand board (OSB) on each side and expanded polystyrene (EPS) rigid foam in the middle. With help from a SIP consultant and an experienced builder, I got the house framed and then finished it out over the next 21 months. After weighing all my options, I decided to build with structural insulated panels (SIPs). (I still have it!) Then I decided to build a house. My most complicated project was probably the mahogany lamp table I built in tenth grade shop class. Before 2001, the biggest construction project I had ever taken on was a bookcase. ![]()
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