Dual function snubber

1. An apparatus comprising:

a snubber having a first portion configured to be operatively connected to a fenestration assembly including a sash and a frame;

the snubber including an engagement portion having a free end configured to be removably engaged within a groove in the fenestration assembly; and

the engagement portion including a first engagement member and a second engagement member at least partially separated from the first engagement member, the second engagement member deflecting less than the first engagement member when a negative pressure is applied to the sash, wherein the first portion, the first engagement portion and the second engagement portion are a single component.

2. The apparatus of claim 1 , wherein the second engagement member has a hook contacting a tab portion of the groove preventing movement of the sash away from the frame upon an application of negative pressure to the sash.

3. The apparatus of claim 1 , wherein a free end of the first engagement member has cross-section that is different than a cross-section of a free end of the second engagement member.

4. The apparatus of claim 1 , wherein a portion of the first engagement member contacts a tab portion on the frame when the sash is in a closed position.

5. The apparatus of claim 4 , wherein the first engagement member bias the sash toward the frame in an inwardly direction when the sash is in a fully closed position.

6. The apparatus of claim 1 , wherein a free end of the second engagement member does not contact a tab portion of the frame when the sash is in a closed position and in a non-stressed condition.

7. The apparatus of claim 1 , wherein a hook portion of the free end of the second engagement member contacts a tab portion of the frame only when the sash is in a closed position and subject to a stressed condition.

8. The apparatus of claim 1 , wherein a gusset connects only the second engagement member to the first portion of the snubber.

9. The apparatus of claim 1 , further including a third engagement member spaced from the second engagement member, wherein the second engagement member is intermediate the first engagement member and the third engagement member.

10. The apparatus of claim 1 wherein the second engagement member has a width greater than a width of the second engagement member.

11. The apparatus of claim 1 wherein the engagement portion does not prevent movement of the sash in a direction extending perpendicular between a second jamb and a first jamb of the frame when the sash is in a closed position and in a non-stressed condition.

12. The apparatus of claim 1 , wherein the sash is part of a casement window that opens by swinging in one of an outwardly direction away from an interior of a building toward an exterior of the building and an inwardly direction away from an exterior of a building toward an interior of a building.

13. The apparatus of claim 1 , wherein the sash defines a door panel.

14. A fenestration assembly comprising:

a frame having a first jamb and a second jamb;

a sash having a first stile and a second stile spaced from and parallel to the first stile;

a snubber operatively connected to the second stile, the snubber including an engagement portion having a free end configured to be removably positioned within a cavity in the second jamb; and

the engagement portion including a first engagement member and a second engagement member, the second engagement member deflecting less than the first engagement member when a negative pressure is applied to the sash, wherein the first portion, the first engagement portion and the second engagement portion are a single component.

15. The fenestration assembly of claim 14 wherein the first engagement member contacts a portion of the second jamb when the sash is in a closed position biasing the sash toward the second jamb in an inwardly direction and a free end of the second engagement member contacts a tab portion on the frame only when the sash is in the closed position and in a stressed condition.

16. The fenestration assembly of claim 15 , wherein a hook portion of the free end of the second engagement member contacts a tab portion of the frame only when the sash is in a closed position and subject to a stressed condition.

17. The fenestration assembly of claim 14 , further including a third engagement member spaced from the second engagement member, wherein the second engagement member is intermediate the first engagement member and the third engagement member.

18. The fenestration assembly of claim 14 , wherein the engagement portion does not prevent movement of the sash in a direction extending perpendicular from the second jamb toward the first jamb when the sash is in a closed position and in a non-stressed condition and wherein the sash is part of a casement window that swings in an outwardly direction away from an interior of a building toward an exterior of the building.

19. A method of securing a casement window comprising:

providing a casement window having a sash with a first stile and a second stile spaced from and parallel to the first stile within a frame having a first jamb and a second jamb spaced from and parallel to the first jamb;

connecting a snubber to the second stile, the snubber including an engagement portion having a free end configured to be removably positioned within a cavity in the second jamb; and

removably engaging the engagement portion having a first engagement member and a second engagement member into a cavity in the second jamb wherein the second engagement member deflecting less than the first engagement member when a negative pressure is applied to the sash, wherein the first portion, the first engagement portion and the second engagement portion are a single component.

20. The method of claim 19 , wherein the first engagement member contacts and biases the second stile toward the second jamb in an inwardly direction to seal the sash to the second jamb when the sash is in a closed position and a hook portion of the second engagement member contacts a tab portion of the second jamb only when the sash is in a closed position and in a stressed condition.