A 2 to 4 wide blade should be appropriate for removing carpet glue.
													
																	Glue down carpet removal. 
									
																	Carpet installers use strong mastic that doesn t deteriorate when they glue down carpets and they often use more than is really needed both of which spell bad news for you when you want to remove the carpet. 
																	Boiling water will soften up hard to remove glue. 
																	Glued down carpet is the absolute worst. 
																	Pulling up the carpet and scraping underneath with a paint scraper to beak the glue bond is tedious work and wetting the carpet to loosen the adhesive may cause it to break into pieces. 
															
													
									
																	If the scraper. 
																	The scraper can easily remove big chunks of the glue which helps get the job done more easily later. 
																	Remove as much of the carpet glue as possible by scraping it using a razor blade scraper. 
																	Though incredibly effective this specialty glue is also notorious because it leaves behind sticky residue that is hard to remove with traditional removal methods. 
															
													
									
																	If it s a different type of glue i dont know for sure if this will work but i feel your pain. 
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																	To use the scraper attachment insert the blade into your reciprocating saw and lock it in place. 
																	Step 2 use boiling water. 
															
													
									
																	Carpet glue is an incredibly strong adhesive designed to fix rolls of carpet to concrete floors.