S Sunny Today 知名会员 注册 2008-05-12 消息 55 荣誉分数 0 声望点数 116 2010-07-23 #1 For Attic, 什么是 R40? Does it mean the deep of the insulation is 40"? 先谢!
S Sunny Today 知名会员 注册 2008-05-12 消息 55 荣誉分数 0 声望点数 116 2010-07-23 #3 Thanks a lot Lungao, So this means, even if the deepth of the insulation is 12" or 13", the attic's insulation is already good?
Thanks a lot Lungao, So this means, even if the deepth of the insulation is 12" or 13", the attic's insulation is already good?
