https://www.callupcontact.com/b/businessprofile/Stay_Dry_Roofing/9941495">https://www.callupcontact.com/b/businessprofile/Stay_Dry_Roofing/9941495. A high quality roofing system will certainly have them mounted https://safiyasobq147063.look4blog.com/77326716/stay-dry-roofing-can-be-fun-for-anyone