住んでからお金のかかる家とかからない家を分けるポイント

Today, I'll discuss the key points that differentiate a house from one that will be expensive to live in after you move in. If you're considering building a house, you'd naturally want to build one that's inexpensive to maintain. I'll explain the basics of what distinguishes these two types of houses. What exactly are the expenses that arise after moving in? Let's first visualize this. Many people create timelines like this, so I've made one too. I believe that a house will require some kind of maintenance or repair every five years. Starting with a new construction cost of 0 yen, I've plotted the costs of home maintenance (repairs, etc.) every five years up to 50 years into the future. This case study assumes a two-story wooden house of approximately 30 tsubo (about 100 square meters) with siding and a colonial-style roof. The plotting axis includes various themes. This might be surprising, but termite control work needs to be done every five years. Then there's the exterior walls, roof (gutters), and balcony waterproofing. These are the exterior parts. The interior will also need some kind of replacement within 50 years. And then there are the fixtures and fittings, which are inevitable. These include plumbing fixtures like kitchen, bathroom, washroom, toilet, and hot water systems. And of course, air conditioning is essential. There are other types of heating systems as well. Regarding these things, when and how much will they cost? While costs will vary depending on the region and the contractor, I'll give a rough estimate. Termite control is estimated to cost around 150,000 yen every 5 years. This is a recurring cost every 5 years. Regarding the exterior walls, repainting will be necessary within 15 years. If it's colonial-style shingles, the shingles need to be repainted. If the balcony has FRP waterproofing, the waterproofing will need to be replaced. This will cost around 150,000 yen. While there's a chance of getting a good or bad water heater or air conditioner, I think replacement will likely be needed between 10 and 15 years. The next major milestone is 30 years. The image is that you'll be updating things every 15 years, then another 15 years. At 30 years, you might need to replace the roof or do interior work. Therefore, we've estimated a lot of costs here. Some might think, "Does the interior really deteriorate that much in 30 years?" For example, doors and windows might break, or if you have polyurethane-coated flooring like colored flooring, the surface might become fuzzy. When that happens, you'll need to consider covering it with something or replacing it. If you do that, you might as well replace all the wallpaper, so I think that's the minimum necessary. After 30 years of use, the kitchen and unit bathroom will also be worn out. The toilet will likely break down. The bidet might break down even sooner. At the very least, it will need to be replaced at this point. The sink area will also be very dirty and old-fashioned, so you'll want to replace that too. The water heater and air conditioner will also inevitably be involved, and the costs will change in this way. These are the major components of the expenses you'll incur after moving in. Given the high cost of home renovations, the question is whether to reduce or eliminate these costs, or extend the replacement interval. If you can extend the lifespan of something that normally needs replacing every 15 years to 20 years, the usable period is longer, making it cheaper. Considering this, I believe there are strategies for each theme to make a home less expensive. First, regarding termites. As long as it's a wooden structure, while taking measures to minimize insect infestation with a slab foundation, termite control work should still be carried out. Termite-repellent chemicals are divided into solvent-based and inorganic types. A typical example of an inorganic type is boric acid-based EcoBoron. Solvent-based chemicals lose their effectiveness through chemical reactions, but boric acid-based chemicals retain their termite-repellent effect as long as water doesn't penetrate and wash them away. Some even say that "if used properly, it can last almost indefinitely," which can significantly reduce costs. While inorganic (boric acid-based) termite control is expensive, considering the cost over 50 years, it's a cost-saving option and highly recommended. Siding typically lasts about 15 years. However, using materials like galvanized steel, painted siding, or wood cladding can extend its lifespan beyond 15 years. Galvanized steel is known for its durability, and the durability also varies depending on the type of paint used. Wood cladding is also quite strong. Apparently, some house builders' salespeople say, "Wood cladding will rot." Have you ever seen old temples in the countryside with cedar planks that were installed 50 years ago? Of course, some parts might be heavily exposed to rain or have rotted, but it's rare to see them ...