Slate Roofing Contractors Association of North America, Inc.

Wedge Roofing

Wedge Roofing

Membership Category: Roofing Contractor

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General Information

1. BUSINESS NAME: Wedge Roofing

2. CONTACT PERSON: Ralph Wedge

3. BUSINESS TYPE:   Corporation

4. ADDRESS: 5 Casa Grande Rd., Petaluma, CA 94954

5. PHONE NUMBER: (707) 763-5475

    Fax Number:

    Email Address:


6. STATE WHERE INCORPORATED:   California                                                       Year of Incorporation: 1980

7. YEARS IN BUSINESS under current ownership:  42                               Years in business under present name: 42   


8. FULL TIME EMPLOYEES (Average No.): 30




10. WORK RANGE:  50 Mile radius of Petaluma CA


11.List any TRADE ORGANIZATIONS to Which You Now Belong: NRCA, IRCC, SPFA


12. CRIMINAL HISTORY: Has the above-named business, including principals, partners, officers, owner, or any employee, been convicted of any business-related crimes in the past 15 years?   No 

13. LICENSE REVOCATION: Have you ever had a business license revoked?  No


14. LIABILITY INSURANCE Company: Associated Industries Ins.

15.  WORKERS COMP. INSURANCE: American Zurich Ins.

Experience Level


16. I have been actively involved in the slate roof contracting business for the past five continuous years.  Yes

17. I, or my employees, have worked on, repaired, installed and/or restored slate roofs for at least the past five continuous years:   Yes  

18. At least 75% of the roofing contracts I have fulfilled over the past five years have been natural quarried slate roofing contracts, OR my company does at least $500,000 per year of natural quarried slate roofing contracts:   No  

19. If your annual percentage of slate roofing contracts is less than 75% of your total roofing, what percentage of your roofing contracts do you estimate to be slate roofing contracts? 10%

20. What estimated percentages of contracts in the following roofing categories do you engage in annually?

21. asphalt shingles          55%

single ply                         %              

built-up roofing                 %

cedar shakes              %

22. ceramic tile                 %

cement shingles            %

imitation                           %

metal                   5%

23. Other (explain): Foam, Spray Foam Roofing 30%

24. What percentage of your business contracting does not include roofing at all?

25. What other types of contracting services do you provide other than roofing (e.g. carpentry, siding, heating)? Carpentry, Dry rot repair.

26. Do you subcontract slate roofing work to other contractors?  No

27. How are your roofing professionals trained? IRCC State Approved Apprentice Training

28. Do you do FLAT-LOCK (SOLDERED) COPPER roofing?       No 

29. Do you do STANDING SEAM metal roofing?  Yes    

30. Do you repair ASBESTOS SHINGLE roofs?        No    

31. Do you install RAIN SPOUTING on slate roofs?   ?

32. Do you do MASONRY WORK in association with slate roofs (such as chimney rebuilding)?     No     

33. Do you do ARCHITECTURAL SHEET METAL work (such as ornamental copper)?     No   

34. Do you do STEEPLE WORK?   Yes       

35. How do you access steep slate roof areas when doing repairs?  Scaffolding and PPE

36. What is your preferred method(s) for installing a replacement slate when doing a repair in the field of the roof?

37. Do you sell salvaged roofing slates?     No                                  If yes, do you ship them?  

38. Do you keep a stockpile of salvaged slates?     No                          If yes, approx. how many squares?

39. Do you sell new roofing slate?    No                                             If yes, do you stock them?  

40. Do you do slate roof installations as well as repairs? Yes       

41. What is the maximum size, in squares, of a new slate roof installation your company will do? 9000 sq.

42. Do your roofing professionals have certified professional training? If yes, explain (include the names of the individuals):

43. Name(s) of your slating professionals

Years of Experience


Name(s) of your slating professionals

Years of Experience


















44. SRCA MEMBER SINCE: December 11, 2018