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百年老房子（木质结构）是什么样？
- 主题发起人 非矿工
- 发布时间 2009-03-25
枫
枫林漫步
Guest
回复: 百年老房子（木质结构）是什么样？
百年老房看起来比20年左右的房要好，是不是那时候盖房能找到最好的木头？
百年老房看起来比20年左右的房要好，是不是那时候盖房能找到最好的木头？
回复: 百年老房子（木质结构）是什么样？
这是美国的一个网站有关termite的描述：
Termites cause more damage than tornadoes, hail storms,
wind storms, and hurricanes combined.
（白蚁比龙卷风，冰雹，风暴和飓风带来跟多的损害）
Termites cost Americans more than $1 billion each year.
（白蚁每年损害美国10多亿）
You can buy insurance for many sources of home damage,
but not for termites.
（你可以购买任何房屋损失险，但买不到白蚁侵害险）
Termites have been around for more than 240 million years.
（白蚁已经出现了2亿4千万年了）
They adapt to ever changing environments. Termites are
natures way to break down wood and return it to the soil.
（他们能适应变化的环境，白蚁的本性是分解木材使之回归土壤）
Termites can not determine the difference between the wood
in the forest where your home was built and the wood
members of your home.
（白蚁不能在森林木材和你房子中使用的木材之间做出区别）
Termites can infest almost every part of your home.
（白蚁可以侵害你房子的每一个部分）
Termites can enter your home through a crack or opening
as thin as a piece of paper.
（白蚁可以通过薄如纸片的裂缝进入你的房子）
Termites never stop working and eating.
（白蚁永不停止工作和吃）
They work 24 hours a day.
（白蚁每天工作24小时）
Termite colonies can average more than a million termites.
（一个白蚁侵入的房子可能有多于一百万的白蚁）
这是美国的一个网站有关termite的描述：
Termites cause more damage than tornadoes, hail storms,
wind storms, and hurricanes combined.
（白蚁比龙卷风，冰雹，风暴和飓风带来跟多的损害）
Termites cost Americans more than $1 billion each year.
（白蚁每年损害美国10多亿）
You can buy insurance for many sources of home damage,
but not for termites.
（你可以购买任何房屋损失险，但买不到白蚁侵害险）
Termites have been around for more than 240 million years.
（白蚁已经出现了2亿4千万年了）
They adapt to ever changing environments. Termites are
natures way to break down wood and return it to the soil.
（他们能适应变化的环境，白蚁的本性是分解木材使之回归土壤）
Termites can not determine the difference between the wood
in the forest where your home was built and the wood
members of your home.
（白蚁不能在森林木材和你房子中使用的木材之间做出区别）
Termites can infest almost every part of your home.
（白蚁可以侵害你房子的每一个部分）
Termites can enter your home through a crack or opening
as thin as a piece of paper.
（白蚁可以通过薄如纸片的裂缝进入你的房子）
Termites never stop working and eating.
（白蚁永不停止工作和吃）
They work 24 hours a day.
（白蚁每天工作24小时）
Termite colonies can average more than a million termites.
（一个白蚁侵入的房子可能有多于一百万的白蚁）
回复: 百年老房子（木质结构）是什么样？
百年老房一般都在downtown,一般面积小,无车库,其贵无比
买下来要重做水电,要不然很麻烦
百年老房一般都在downtown,一般面积小,无车库,其贵无比
买下来要重做水电,要不然很麻烦
枫
枫林漫步
Guest
枫
枫林漫步
Guest
回复: 百年老房子（木质结构）是什么样？
但也不要害怕，白蚁的存在一般是有区域性的，对于易受侵害的区域加拿大的building code都是有防护要求的。对于旧房来说，买房时做好inspection就可以了，如果没有入侵，将来入侵的可能性也很小。
白蚁一旦进入房子，损害是很快的，因为白蚁是群体性动物。但初始阶段是很难发现的，因为开始入侵的部位一般是很隐蔽的。具体入侵多长时间侵害到什么程度，我目前还没有这方面的资料，我也不是专业验房师。但你可以想象一旦百万大军入侵，24小时不停地工作和啃食会是一种什么样的情况。
但也不要害怕，白蚁的存在一般是有区域性的，对于易受侵害的区域加拿大的building code都是有防护要求的。对于旧房来说，买房时做好inspection就可以了，如果没有入侵，将来入侵的可能性也很小。
最后编辑: 2009-03-25
枫
枫林漫步
Guest
回复: 百年老房子（木质结构）是什么样？
谢谢，加纷纷了
谢谢，加纷纷了
回复: 百年老房子（木质结构）是什么样？
木质房子的抗地震性能是相对强于其他材料的。并不是因为其坚固，而是因为其是整体的弹性结构，和木头房子比，其他的现代建筑都是相对的刚性结构。
更重要的是，木头房子倒塌的危害后果是相对远远小于其他现代建筑的。
在木质房子倒塌后，因为一般最多三层。家里的家具和电器的坚固性完全可以在倒塌的房子废墟中支撑出一块块狭小的空间让人幸存下来。
日本和西方的大部分民居都是木头的，所以地震时才有让人立刻躲在坚固家具旁边的措施作为第一应急反应。但在高层建筑，这种做法根本没有什么明显作用。如果遇到大地震，在数万吨的重物下，大部分家具都会被压扁。
国外大地震的最怕的是火灾。日本几十年前东京8.3级地震90％的伤亡都是地震后的火灾造成的。
唉，中国的民居建筑，从根本上就有严重的缺陷。。。。
木质房子的抗地震性能是相对强于其他材料的。并不是因为其坚固，而是因为其是整体的弹性结构，和木头房子比，其他的现代建筑都是相对的刚性结构。
更重要的是，木头房子倒塌的危害后果是相对远远小于其他现代建筑的。
在木质房子倒塌后，因为一般最多三层。家里的家具和电器的坚固性完全可以在倒塌的房子废墟中支撑出一块块狭小的空间让人幸存下来。
日本和西方的大部分民居都是木头的，所以地震时才有让人立刻躲在坚固家具旁边的措施作为第一应急反应。但在高层建筑，这种做法根本没有什么明显作用。如果遇到大地震，在数万吨的重物下，大部分家具都会被压扁。
国外大地震的最怕的是火灾。日本几十年前东京8.3级地震90％的伤亡都是地震后的火灾造成的。
唉，中国的民居建筑，从根本上就有严重的缺陷。。。。
回复: 百年老房子（木质结构）是什么样？
加拿大房屋中的另一种有害物质：UFFI - 脲甲醛泡沫绝热材料（Urea-formaldehyde foam insulation ）
UFFI于1950s开发于欧洲，1970s在加拿大得到广泛使用（主要集中于1977-1980）。由于发现对人体有害，加拿大于1980年立法禁止了这种材料的使用。
UFFI的危害：可释放出大量甲醛,有时可高达10mg/m3以上。甲醛具有明显的刺激作用，对眼、喉、气管的刺激很大；在 体内能形成变态原，引起支气管哮喘和皮肤的变态反应；能损伤肝脏，尤其是有肝炎既往史的人，住进UFFI活动房屋以后，容易复发肝炎。长期吸入低浓度甲 醛，能引起头痛、头晕、恶心、呼吸困难、肺功能下降、神经衰弱，免疫功能也受影响。动物试验能诱发出鼻咽癌。
UFFI是使用于墙体内的一种隔热材料，一般人是无法看到和分辨出来的。如果你买的房子建造于70年代，特别是1977-1980年间，最好要求你的验房师给你是否有UFFI的结论。
据说UFFI目前在国内还销售和使用（未证实消息）。
加拿大房屋中的另一种有害物质：UFFI - 脲甲醛泡沫绝热材料（Urea-formaldehyde foam insulation ）
UFFI于1950s开发于欧洲，1970s在加拿大得到广泛使用（主要集中于1977-1980）。由于发现对人体有害，加拿大于1980年立法禁止了这种材料的使用。
UFFI的危害：可释放出大量甲醛,有时可高达10mg/m3以上。甲醛具有明显的刺激作用，对眼、喉、气管的刺激很大；在 体内能形成变态原，引起支气管哮喘和皮肤的变态反应；能损伤肝脏，尤其是有肝炎既往史的人，住进UFFI活动房屋以后，容易复发肝炎。长期吸入低浓度甲 醛，能引起头痛、头晕、恶心、呼吸困难、肺功能下降、神经衰弱，免疫功能也受影响。动物试验能诱发出鼻咽癌。
UFFI是使用于墙体内的一种隔热材料，一般人是无法看到和分辨出来的。如果你买的房子建造于70年代，特别是1977-1980年间，最好要求你的验房师给你是否有UFFI的结论。
据说UFFI目前在国内还销售和使用（未证实消息）。
最后编辑: 2009-03-25
回复: 百年老房子（木质结构）是什么样？
What Is UFFI?
Urea-formaldehyde foam insulation (UFFI) was developed in Europe in the 1950s as an improved means of insulating difficult-to-reach cavities in house walls. It is typically made at a construction site from a mixture of urea-formaldehyde resin, a foaming agent and compressed air. When the mixture is injected into the wall, urea and formaldehyde unite and "cure" into an insulating foam plastic.
During the 1970s, when concerns about energy efficiency led to efforts to improve home insulation in Canada, UFFI became an important insulation product for existing houses. Most installations occurred between 1977 and its ban in Canada in 1980.
What Is UFFI?
Urea-formaldehyde foam insulation (UFFI) was developed in Europe in the 1950s as an improved means of insulating difficult-to-reach cavities in house walls. It is typically made at a construction site from a mixture of urea-formaldehyde resin, a foaming agent and compressed air. When the mixture is injected into the wall, urea and formaldehyde unite and "cure" into an insulating foam plastic.
During the 1970s, when concerns about energy efficiency led to efforts to improve home insulation in Canada, UFFI became an important insulation product for existing houses. Most installations occurred between 1977 and its ban in Canada in 1980.
回复: 百年老房子（木质结构）是什么样？
Why Was UFFI Banned?
In the insulating process, a slight excess of formaldehyde was often added to ensure complete "curing" with the urea to produce the urea-formaldehyde foam. That excess was given off during the curing, almost entirely within a day or two of injection. Properly installed, UFFI might not have resulted in any problem. Unfortunately, however, UFFI was sometimes improperly installed or used in locations where it should not have been. Enough complaints were received, particularly from people living in small, well-sealed homes, that Canadian authorities became concerned about possible health implications. The further use of UFFI was banned in 1980.
Why Was UFFI Banned?
In the insulating process, a slight excess of formaldehyde was often added to ensure complete "curing" with the urea to produce the urea-formaldehyde foam. That excess was given off during the curing, almost entirely within a day or two of injection. Properly installed, UFFI might not have resulted in any problem. Unfortunately, however, UFFI was sometimes improperly installed or used in locations where it should not have been. Enough complaints were received, particularly from people living in small, well-sealed homes, that Canadian authorities became concerned about possible health implications. The further use of UFFI was banned in 1980.
回复: 百年老房子（木质结构）是什么样？
What Is Formaldehyde?
Formaldehyde is a pungent, colourless gas commonly used in water solution as a preservative and disinfectant. It is also a basis for major plastics, including durable adhesives. It occurs naturally in the human body and in the outdoor environment. Formaldehyde is used to bond plywood, particleboard, carpets and fabrics, and it contributes to "that new house smell." Formaldehyde is also a by product of combustion; it is found in tobacco smoke, vehicle exhaust and the fumes from furnaces, fireplaces and wood stoves.
While small amounts of formaldehyde are harmless, it is an irritating and toxic gas in significant concentrations. Symptoms of overexposure to formaldehyde include irritation to eyes, nose and throat; persistent cough and respiratory distress; skin irritation; nausea; headache; and dizziness.
Health Canada has determined that 0.1 parts per million (ppm) is a safe level of formaldehyde in the home. Sensitivity to this level may vary based on individual age and health.
What Is Formaldehyde?
Formaldehyde is a pungent, colourless gas commonly used in water solution as a preservative and disinfectant. It is also a basis for major plastics, including durable adhesives. It occurs naturally in the human body and in the outdoor environment. Formaldehyde is used to bond plywood, particleboard, carpets and fabrics, and it contributes to "that new house smell." Formaldehyde is also a by product of combustion; it is found in tobacco smoke, vehicle exhaust and the fumes from furnaces, fireplaces and wood stoves.
While small amounts of formaldehyde are harmless, it is an irritating and toxic gas in significant concentrations. Symptoms of overexposure to formaldehyde include irritation to eyes, nose and throat; persistent cough and respiratory distress; skin irritation; nausea; headache; and dizziness.
Health Canada has determined that 0.1 parts per million (ppm) is a safe level of formaldehyde in the home. Sensitivity to this level may vary based on individual age and health.
回复: 百年老房子（木质结构）是什么样？
Should You Be Concerned About UFFI Today?
Tests show that UFFI is not a source of over-exposure to formaldehyde after the initial curing and release of excess gas. As it was last installed in 1980, it would certainly not be causing excess indoor formaldehyde today. Houses with UFFI show no higher formaldehyde levels than those without it. However, if UFFI comes in contact with water or moisture, it could begin to break down. Wet or deteriorating UFFI should be removed by a specialist and the source of the moisture problem should be repaired.
In new or other well-sealed houses, significant indoor formaldehyde levels may still occur when new carpets or wood composite materials, such as plywood, particleboard and waferboard, are used in home construction, cabinetry and furnishings. These are the most likely sources of high formaldehyde levels in the home today.
Should You Be Concerned About UFFI Today?
Tests show that UFFI is not a source of over-exposure to formaldehyde after the initial curing and release of excess gas. As it was last installed in 1980, it would certainly not be causing excess indoor formaldehyde today. Houses with UFFI show no higher formaldehyde levels than those without it. However, if UFFI comes in contact with water or moisture, it could begin to break down. Wet or deteriorating UFFI should be removed by a specialist and the source of the moisture problem should be repaired.
In new or other well-sealed houses, significant indoor formaldehyde levels may still occur when new carpets or wood composite materials, such as plywood, particleboard and waferboard, are used in home construction, cabinetry and furnishings. These are the most likely sources of high formaldehyde levels in the home today.
回复: 百年老房子（木质结构）是什么样？
If you are asked for a UFFI declaration
Since 1993, a UFFI declaration has not been required for mortgage insurance under the National Housing Act. However, a UFFI declaration may still be requested as part of a real estate listing or an agreement of purchase and sale. Even though UFFI should not be a cause for concern, you may, depending on where you live in Canada, be asked to declare whether or not it is in your home.
Some home inspectors will have the training or experience to identify UFFI. You can make a physical check of the home yourself. Look for a series of small patched holes, 1.2 to 2 cm (1/2 to 3/4 in.) across, at regular intervals on exterior or interior walls. Foam may be obvious where floor joists meet the exterior walls of the basement or around electrical outlets or switch plates. These indicators do not necessarily mean that UFFI is present, but they may alert you to the possibility.
If you are asked for a UFFI declaration
Since 1993, a UFFI declaration has not been required for mortgage insurance under the National Housing Act. However, a UFFI declaration may still be requested as part of a real estate listing or an agreement of purchase and sale. Even though UFFI should not be a cause for concern, you may, depending on where you live in Canada, be asked to declare whether or not it is in your home.
Some home inspectors will have the training or experience to identify UFFI. You can make a physical check of the home yourself. Look for a series of small patched holes, 1.2 to 2 cm (1/2 to 3/4 in.) across, at regular intervals on exterior or interior walls. Foam may be obvious where floor joists meet the exterior walls of the basement or around electrical outlets or switch plates. These indicators do not necessarily mean that UFFI is present, but they may alert you to the possibility.
回复: 百年老房子（木质结构）是什么样？
直说吧，那房子多少钱卖？
直说吧，那房子多少钱卖？
回复: 百年老房子（木质结构）是什么样？
在温哥华，一般土地价格占总价的2/3或者更多，但在其他城市地价可能只占总价的1/3。也就是说如果一个房子本身造价是20万的话，在温哥华可能是60万或者以上，但到了另一个城市很可能是30万。
但说这个房子值多少钱没什么意义，因为房价的很大一部分是地价，不同的位置，不同的土地面积决定了不同的房价。
在温哥华，一般土地价格占总价的2/3或者更多，但在其他城市地价可能只占总价的1/3。也就是说如果一个房子本身造价是20万的话，在温哥华可能是60万或者以上，但到了另一个城市很可能是30万。
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