CA815221A - Ventilating covering element for built-up roofing - Google Patents

Ventilating covering element for built-up roofing

Info

Publication number
CA815221A
CA815221A CA815221A CA815221DA CA815221A CA 815221 A CA815221 A CA 815221A CA 815221 A CA815221 A CA 815221A CA 815221D A CA815221D A CA 815221DA CA 815221 A CA815221 A CA 815221A
Authority
CA
Canada
Prior art keywords
roofing
ventilating
built
covering element
covering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA815221A
Inventor
G. Long Ernest
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johns Manville Corp
Original Assignee
Johns Manville Corp
Publication date
Application granted granted Critical
Publication of CA815221A publication Critical patent/CA815221A/en
Expired legal-status Critical Current

Links

CA815221A Ventilating covering element for built-up roofing Expired CA815221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA815221T

Publications (1)

Publication Number Publication Date
CA815221A true CA815221A (en) 1969-06-17

Family

ID=36287738

Family Applications (1)

Application Number Title Priority Date Filing Date
CA815221A Expired CA815221A (en) Ventilating covering element for built-up roofing

Country Status (1)

Country Link
CA (1) CA815221A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936070A (en) * 1989-02-22 1990-06-26 Michaud Robert E Roof covering panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936070A (en) * 1989-02-22 1990-06-26 Michaud Robert E Roof covering panel

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