First, rain water should not accumulate around your house. That's why you have gutters and rain pipes to direct water AWAY from your foundation wall.
Second, window well is lined with a metal window well liner, the upper edge of which is a few inches higher than the ground to keep out minor water accumulation.
Thirdly, you can purchase window well cover to keep the rain water out, but it won't keep the flood out.
上次下大暴雨， 邻居老头说他地下室窗户里进水了， 淹了地下室。。。。。然后他用塑料把外面盖住了。。。
我突然想， 我家也有类似的半地下窗， 外面垒的石头砖"墙 "， 没见发水啊。。。。。水是从哪走的呢?
https://www.lowes.com/pd/MacCourt-Plastic-Window-Well-Cover/3030021?cm_mmc=shp-_-c-_-prd-_-lbm-_-bing-_-pla-_-210-_-sosspecialtymetalproducts-_-3030021-_-0&kpid&placeholder=null&msclkid=4cf10aa7e02a1cc3fd5854a6f7c5febb&gclid=CKm0k_7CzOYCFXSSxQIdkmsL9w&gclsrc=ds
First, rain water should not accumulate around your house. That's why you have gutters and rain pipes to direct water AWAY from your foundation wall.
Second, window well is lined with a metal window well liner, the upper edge of which is a few inches higher than the ground to keep out minor water accumulation.
Thirdly, you can purchase window well cover to keep the rain water out, but it won't keep the flood out.
Window well should also have a drain pipe connect to house foundation drain which goes to the sump pump well.