Abstract: A press lock fascia-cant system for installing on a building roof to secure the roof membrane in a watertight fashion. A cant member is secured to the roof adjacent the building wall and has a spring clip member secured thereto. The edge of the roof membrane extends upwardly over the cant and over the spring clip member and then downwardly along the outer surface of the spring clip member. A fascia member is detachably secured to the spring clip member and presses the roof member into engagement with the cant member and the spring clip member to maintain the roof member therebetween.