powershell script to get list of user have acces to folder and sub folder

Hi,

i need to get list off users have an acces to files under folder and subfolders
i have many different access and each of my folders have different security group
i need to get all the users of all groups with the folder name

presently i use this script but i cant get the member of each groups in same time

$OutFile = "C:\temp\Permissions.csv"
$Header = "Folder Path,IdentityReference,AccessControlType,IsInherited,InheritanceFlags,PropagationFlags"
Add-Content -Value $Header -Path $OutFile

$RootPath = "\\my root folder\"

$Folders = dir $RootPath -recurse | where {$_.psiscontainer -eq $true}

foreach ($Folder in $Folders){
      $ACLs = get-acl $Folder.fullname | ForEach-Object { $_.Access  }
      Foreach ($ACL in $ACLs){
      $OutInfo = $Folder.Fullname + "," + $ACL.IdentityReference  + "," + $ACL.AccessControlType + "," + $ACL.IsInherited + "," + $ACL.InheritanceFlags + "," + $ACL.PropagationFlags
      Add-Content -Value $OutInfo -Path $OutFile
      }
}