AboutRon Haynes Expertise I can answer questions related to all types of steep slope and low-slope commercial and residential roofing, including asphalt shingles, metal roofing, built-up roofing (tar and gravel), modified bitumen roofing, single ply roof systems, tile, and slate. Questions may relate to design, installation, problem resolution or repair of the roof system.
Experience I have over twenty years experience as a roof consultant dealing with various types of roof systems on commercial, industrial, residential and Government facilities. Experience includes new roof and reroof design, roof repair specification, roof construction, maintenance, failure investigations, performance analysis, inspections, moisture intrusion surveys and studies, and storm damage assessments. I am a registered professional engineer and a Registered Roof Consultant with the Roof Consultants Institute.
Organizations Roof Consultants Institute
Education/Credentials Bachelors Degree in Civil Engineering
Registered Professional Engineer
Registered Roof Consultant, Roof Consultants Institute Certified Infrared Thermographer
Awards and Honors Award Winner, Large Roof Replacement Design Document Competition at the 1999 Roof Consultants Institute International Convention. Dept of Navy Meritorious Civilian Service Award. Armed Forces Civilian Service Medal.
Question If I get rubber, running it up the sidewall sheathing 18” (as roofer recommends) would keep the water out, but will look pretty crummy unless vinyl siding can be re-installed on top of the membrane, and then wouldn’t the starter strip or j-channel’s nails (at the bottom of the vinyl) have to penetrate the rubber membrane? If instead I get steel standing seam (roof slope is partly 2:12, partly 4:12, so maybe OK), how should this same junction be flashed?
Thanks very much for your help.
Answer Helen,
I'm not sure I really understand what you're asking. But, consider peel and stick waterproof membrane such as WR Grace Ice & Watershield for the wall lining. It will tend to seal around nail punctures. It can run behind any roof flashing or siding material and or overlap any roof flashing termination to keep the roof and wall juncture watertight and allow for the finish work of a siding material or roof covering.
