Standing seam metal panel roof recover

1. A metal panel standing seam roof recover system installed over an existing metal panel standing seam roof having a pitch,

(a) said existing metal panel standing seam roof comprising:

i) a support frame which includes an array of spaced purlins running across the pitch of said existing roof,

ii) a plurality of panel clips attached to said purlins and arranged in linear arrays running along the pitch of said existing roof, and

iii) a cover attached to said panel clips, said cover comprising a plurality of elongated metal cover panels having upstanding sides with a trough therebetween, said sides defining shoulders and lateral edges, said cover panels being interconnected along adjacent said lateral edges by sidelaps formed on said panel clips, said cover sidelaps extending along the pitch of said existing roof and extending vertically from said shoulders on adjacent said cover panels; and

(b) said metal panel standing seam roof recover system comprising:

i) a plurality of recover panel clips mounted to said existing roof and arranged in linear arrays running along the pitch of said existing roof, said recover panel clips being mounted to said cover panels by a clip fastener extending through a said cover sidelap or through one of said shoulders adjacent said cover sidelap; and

ii) a recover attached to said recover panel clips, said recover comprising a plurality of elongated metal recover panels having upstanding sides defining lateral edges with a trough therebetween, said recover panels being interconnected along adjacent said lateral edges by sidelaps formed on said recover panel clips.

2. The installed recover system of claim 1 , wherein said recover panel clips are mounted to said cover panels by a first said clip fastener extending horizontally through a said cover sidelap and a second said clip fastener extending vertically through one of said shoulders adjacent said cover sidelap.

3. The installed recover system of claim 2 , wherein said recover system comprises cover fasteners attaching said cover panels to said purlins.

4. The installed recover system of claim 2 , wherein said first clip fastener does not extend through a said panel clip in said existing roof.

5. The installed recover system of claim 2 , wherein said second clip fastener does not extend into a said purlin in said existing roof.

6. The installed recover system of claim 5 , wherein said recover system comprises cover fasteners attaching said cover panels to said purlins.

7. The installed recover system of claim 2 , wherein said recover panel clips comprise a vertical body and a horizontal bottom flange, wherein said first clip fastener extends through said clip body and said second clip fastener extends through said clip bottom flange.

8. The installed recover system of claim 1 , wherein said recover system comprises cover fasteners attaching said cover panels to said purlins.

9. The installed recover system of claim 8 , wherein said cover fasteners comprise fasteners extending through the other said shoulder adjacent said cover sidelap.

10. The installed recover system of claim 8 , wherein said cover fasteners comprise fasteners extending through said trough of said cover panels.

11. The installed recover system of claim 8 , wherein said cover panels in said existing roof are spaced above said purlins and said cover fasteners include a spacer extending between said fastener and said purlin.

12. The installed recover system of claim 1 , wherein said recover panel clips are mounted to said cover panels in said existing roof by a first said clip fastener extending through a said cover sidelap in said existing roof and a second said clip fastener extending through one of said shoulders adjacent said cover sidelap and wherein said recover system comprises a cover fastener extending through the other said shoulder adjacent said cover sidelap and a cover fastener extending through said trough of said cover panels in said existing roof.

13. The installed recover system of claim 1 , wherein said cover panels in said existing roof are asymmetrical.

14. The installed recover system of claim 1 , wherein said cover sidelaps in said existing roof are mechanically seamed sidelaps, snap-in sidelaps, or hook and roll in place sidelaps.

15. The installed recover system of claim 1 , wherein said recover panel clips include individual panel clips installed in a field zone of said existing roof and continuous panel clips installed in a corner zone of said existing roof.

16. The installed recover system of claim 1 , wherein said recover panels in said roof recover system are symmetrical panels.

17. The installed recover system of claim 1 , wherein said recover panel clips include individual panel clips installed in a field zone of said existing roof and continuous panel clips installed in an edge zone of said existing roof.

18. A method of installing a metal panel standing seam recover over an existing metal panel standing seam roof having a pitch, wherein:

(a) said existing metal panel standing seam roof comprises:

i) a support frame which includes an array of spaced purlins running across the pitch of said existing roof,

ii) a plurality of panel clips attached to said purlins, and

iii) a cover attached to said panel clips, said cover comprising a plurality of elongated metal panels having upstanding sides, said sides defining shoulders and lateral edges, said cover panels being interconnected along adjacent said lateral edges by sidelaps formed on said panel clips, said cover sidelaps extending vertically from said shoulders on adjacent said cover panels;

(b) wherein said method comprises:

i) providing an array of recover panel clips on said existing roof by attaching said recover panel clips to a said vertically extending cover sidelap in said existing roof or to one of said shoulders adjacent said cover sidelap; and

ii) attaching elongated metal recover panels to said recover panel clips by forming sidelaps on said recover panel clips.

19. The method of claim 18 , wherein said method comprises attaching said recover panel clips to said vertically extending cover sidelap in said existing roof and to one of said shoulders adjacent said cover sidelap.

20. The method of claim 19 , wherein method comprises providing an array of individual recover panel clips in a field zone of said existing roof and providing continuous panel clips in an edge zone or corner zone of said existing roof.

21. The method of claim 19 , wherein said method comprises attaching said cover panels in said existing roof to said purlins by installing cover fasteners through said cover panels into said purlins.

22. The method of claim 18 , wherein method comprises providing an array of individual recover panel clips in a field zone of said existing roof and providing continuous panel clips in an edge zone or corner zone of said existing roof.

23. The method of claim 18 , wherein said method comprises attaching said cover panels in said existing roof to said purlins by installing cover fasteners through said cover panels into said purlins.

24. A metal panel standing seam roof recover system installed over an existing metal panel standing seam roof having a pitch,

(a) said existing metal panel standing seam roof comprising:

i) a support frame which includes an array of spaced purlins running across the pitch of said existing roof,

ii) a plurality of panel clips attached to said purlins and arranged in linear arrays running along the pitch of said existing roof, and

iii) a cover attached to said panel clips, said cover comprising a plurality of elongated metal cover panels having upstanding sides with a trough therebetween, said cover panels being interconnected along adjacent said upstanding sides by sidelaps formed on said panel clips, said cover sidelaps extending along the pitch of said existing roof and extending vertically from said cover panels; and

(b) said metal panel standing seam roof recover system comprising:

i) a plurality of recover panel clips mounted to said existing roof and arranged in linear arrays running along the pitch of said existing roof, said recover panel clips being mounted to said cover panels by a clip fastener extending through a said cover sidelap; and

ii) a recover attached to said recover panel clips, said recover comprising a plurality of elongated metal recover panels having upstanding sides defining lateral edges with a trough therebetween, said recover panels being interconnected along adjacent said lateral edges by sidelaps formed on said recover panel clips.

25. The installed recover system of claim 24 , wherein said recover system comprises cover fasteners attaching said cover panels to said purlins.