前麵VanSmallLandlord已經答了,是panel metal roof。其優點嘛,請看

ztToday's metal roofs offer the following advantages:

  • Metal roofs are lightweight--less than 1/3 the weight of asphalt and one twentieth the weight of concrete.
  • A metal roof won't rot, crack, crumble, split, break or burn.
  • Metal roofs are made from recycled steel and aluminum material and are 100 % recyclable.
  • Metal roofs have coatings that prevent 75 to 80 percent of the sun's energy from being absorbed into the roof.
  • A metal roof can reduce roof surface temperatures by 60 to 70 degrees.
  • Metal roofs are available in a wide variety of styles and custom colors.
  • Metal Roofing is durable and maintenance free.
  • A Metal Roof increases a building's value.
  • Metal Roofing is an ideal platform for integrating solar electric and solar thermal renewable energy solutions.
  • A Metal Roof can earn up to 25 U.S. Green Building Council LEED credits

所有跟帖: 

價錢比傳統的其它Roof都貴,貴多少我沒調查過。一般是 -如山- 給 如山 發送悄悄話 如山 的博客首頁 (53 bytes) () 12/24/2012 postreply 20:26:53

請您先登陸,再發跟帖!