How to Patch a Leaking Rubber Roof – This Old House



This Old House general contractor Tom Silva repairs a leaking flat roof with a new, long-lasting patch. (See below for a shopping list and tools.) Click here to …
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19 thoughts on “How to Patch a Leaking Rubber Roof – This Old House

  1. Does Noboremed Secrets really work? I notice lots of people keep on talking about Noboremed Secrets. But Im not sure if it's good enough to fix your shingles issue inherently .

  2. Nice clean work, however, it is very important to round the corners of the patch. A square corner is more likely to be peeled back if impacted by foot traffic or some other reason. In this case, it's not so serious because it's a large patch and there is a large overlap onto the roof. When it's smaller, there is shorter distance between the edge and open roof cavity.

  3. this is not accurate. he should used seam tape and round the corners. i also noticed this guy used a brush to cleam the membranes. use a rag according to firestone,sarnafil,John mansville, and other manufacturers. and when applying quick prime your suppose to use primer pads that are made to penetrate the membranes not rollers or brushes. then use lap sealant

  4. Tommy you blew my mind brother , for decades Tommy & Norm have been my idols & until watching this video have never saw either man make a mistake , Tommy made 4 mistakes in this video .

    1st is not cutting out all the old " uncured" rubber before patching , it's not good to glue cured rubber over uncured rubber & can blister .

    2nd is square corners of the patch , all corners of any mil EPDM should be rounded , when rubber shrinks & tightens up square corners will pop up , and square corners can lift by snow & ice movement , or foot traffic .

    #3 Patch size , the patch should extend a full 12 inches on all sides of the repair , 6 inches will work but having the full 12 inches is industry standard .

    4 Seam tape vs seam caulk , all rubber to rubber seams not adhered using seam tape with 1/8th inch tape exposure must be caulked using seam caulk .

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