Every covenant, agreement or understanding in, or in connection with any contract or agreement made and entered into by owners, contractors, subcontractors or suppliers whereby an architect, engineer, surveyor or his agents, servants or employes shall be indemnified or held harmless for damages, claims, losses or expenses including attorneys' fees arising out of: (1) the preparation or approval by an architect, engineer, surveyor or his agents, servants, employes or invitees of maps, drawings, opinions, reports, surveys, change orders, designs or specifications, or (2) the giving of or the failure to give directions or instructions by the architect, engineer, surveyor or his agents, servants or employes provided such giving or failure to give is the primary cause of the damage, claim, loss or expense, shall be void as against public policy and wholly unenforceable.