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Difficult to be sure, but it will depend in part on what your "floating slab" construction is - around here, that's a "thick-edged" reinforced construction and would typically support the load - the edge of the slab is thicker than the center, and considerable reinforcing steel is placed to transfer loads so that the whole slab supports the structure - the ...


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First of all, the ground directly under the center of your house is unlikely to freeze, because the house is sitting on top of it protecting it from direct exposure to the cold. Freezing under the foundation is mainly a concern at the perimeter. In order to support the ridge beam of your roof, which means the weight of the entire roof, you definitely need ...


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If (and it's a big if) you can find a company in the business that won't have to travel too far, this might be a good candidate for a spray foam (usually polyurethane) roof, applied on top of the existing roof. More commonly seen on commercial buildings, but a flat roof is a flat roof... If you cannot find a company who can get to you and do it for ...


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The page http://www.greenbuildingadvisor.com/blogs/dept/musings/how-build-insulated-cathedral-ceiling is a compendium of several other pages covers the subject pretty well, though it is targeted at cathedral ceilings, all of it applies equally well to a moderately sloped or level ceiling. Keeping moisture out is the prime consideration for unvented rafters. ...


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The principle behind a flat roof is the same as with a sloped roof: keep moisture out of the uninsulated space of the roof. Most roof systems require venting. Venting is necessary to remove any moisture that comes from the inside of the home into the insulated space and causes condensation. Condensation causes mold and other moisture problems. As long as ...


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Since you are redoing the roof deck, you are at an ideal time to fix this right, or as right as you can without redoing the major framing. Depending whether you want the water to all go one direction, or go two ways, you build a flat (but sloping) triangular roof in the valley - either raised at least one foot and sloping all the way to one end, or raised ...


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I'd suggest giving some serious though to a functional Cupola (or two) (and soffit vents for intake.) Some "old fashioned things" actually make sense. A ridge vent can be a lot more restrictive than you might think - if you don't have some sort of architectural horror of cupolas, they can be very effective by comparison. If you prefer a slightly newer ...


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I am starting to research getting a new roof for my home a colonial currently with gable vents an electric fan and soffits. The previous owners painted over the exterior of the soffits and within the attic filled the soffits with loose insulation. It has been a nightmare to fix for me. The advantage to a ridge vent and soffits is they work 24/7, there ...


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If you have a 2/12 pitch roof and you are already redoing the roofing and some of the roof decking, let me recommend that instead of ventilating your very shallow and difficult-to-work-in attic, you keep it sealed and insulate the the (new) roof deck, bringing the attic into the conditioned space of the house. You have a perfect opportunity to add a really ...


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Before I added my ridge vent when we had consecutive days of 100F the attic could get up to 120-125 easy - and my roof is heavily shaded. I would come down completely soaked - like swimming pool soaked - when doing 15 minutes of electrical work. I just added a ridge vent to my attic a few months ago. Measured attic temperature after a couple of days in ...


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When young and immortal, you [may think you] can climb around on a 45 degree roof with a pair of sneakers and the confidence that you'll never fall off. Mortality may intervene if you do fall off, and as you get older and mortality has more of a grip precautions are [more obviously] advisable... Roof Jacks are commonly available for rent (by day, week or ...


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If the purpose of the plans is to just protect against damage, I think your plan is probably fine (you might not even have to cut them down to size, I don't see the problem with it overhanging a little bit). However, it's not clear to me based on that document exactly what the purpose of the splice plates are. To me it sounds like the splice plates are on ...


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You wear a harness attached to a rope that is thrown over the roof and tied to something solid such as a tree. The harness kit may look like this: The harness is most often used in a manner as shown here. A short connecting rope goes from the middle of the high back over to a D-Clip that then attaches to the main safety rope via a Robe Grab. Rope ...


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You may want to go with a TJI (truss joist) that is made by one of these companies (Weyerhaeuser, Georgia Pacific, etc.,). Unless you use a 2 lb foam in the rafter bays, you will need something 14" or taller to get enough insulation in the ceiling to meet code. Of coarse, this depends on the area you live in. Different regions have different R-value ...


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In those sizes, you might want to look at manufactured lumber such as a Parallam beam. Those can be made in arbitrary lengths (subject to shipping limitations), and they may be cheaper than a solid-wood alternative of the same strength.


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If it is a shingle roof, a pressure washer is going to tear it up. Barrel tile is another victum of presure washers unless it is a whole new roof. Old tiles will disintergrate because the bonding agents used to make them grow less adhesive as time goes by. You should only use you garden hose and let the water run from at least three courses above the old ...


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To test for leaks, you will need to simulate driving rain for an extended period of time. There are standards that are used to approve building products and methods for water penetration, but it would be hard for you to conduct such a scientific test. Search for "Test Method for Water Penetration." I've seen a documentary about the building of a skyscraper ...



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