我的风化承包商应该遵循BPI（建筑绩效学院）的安装标准。至少，这就是我的合同状态。我在BPI站点状态上找到的标准“在存在拱门通风口，并且可存放是可行的，需要适当的阻挡或挡板，以提供防护保温的风力洗涤。”承包商有问题地安装了2件事。好吧，我猜一个人可能会陷入一点灰色区域，但另一个似乎只是平凡的不正确。首先，承包商在我的屋檐上安装了通风挡板，在那里没有。然而，椽子是16“oc，承包商使用了一半的粉红色筏 - r-mate挡板，这仅是由于它的有效排气宽度小于12”的宽度约3/4的宽度。似乎应该选择更好的装修产品。更重要的是，承包商没有在墙上顶板的挡板周围安装固体空气。相反，承包商在挡板周围安装了未公开的玻璃纤维塞头。 These should keep the cellulose that they blew from going into the soffit. However, I understand that this leaves the area around the eaves subject to the ‘wind washing’ effect and thus a diminished R-value. My question is just how bad might this wind washing affect the efficiency of the insulation? I know this is not a forum for legal advice, but is the problem likely bad enough that I should really insist that the ‘wind washing’ issue be rectified? Can this problem even be reasonably rectified now that there is at least a foot of cellulose blown over the thin batts that were in place prior to the weatherization project? One other related question. The crew installed a couple of inches of thermax over my existing kneewall batts. They did do a nice job with the solid air blocking and foam around the bottom of the vent baffle that goes up the sloped ceiling. However, they used unfaced fiberglass batt plugs around the vent baffle at the top of the slope . The slope contains old fiberglass batts. The top attic contains the old fiberglass with a foot of new cellulose blown on top. Is the lack of air blocking at the top of the slope another big ‘wind washing’ issue? I should note that the vent baffles in the slope were retrofitted, so they are not air sealed to the sheathing along the path of the slope. If it is not already obvious, I have a Cape style house.