Installation Guide Masterflash

Master Flash Pipe Flashing

An Engineered Flashing for all Seasons & Reasons

Roof Adaptability

Master Flash works on all types of roofing surfaces, including metal, plastic, tile, rubber membrane, and others. Aluminum base bends with ease to conform to any panel configuration or roof pitch.

Weather Protected

Master Flash is compounded specifically for maximum resistance to weathering due to ozone and ultraviolet light.

Easy On-Site Customization

Master Flash comes in 11 sizes to fit all pipes and vents 1/8'' to 26''. Standard colors black and grey.

Compound Choices

Standard EPDM covers all applications from - 65F to +275F. Red Silicone Master Flash is available for environmental extremes, from -100F to +500F.

Numerous Applications

  • Plumbing, heating/air conditioning vents and equipment
  • Electrical service entrance
  • Grain augers

The only EPDM Flashing to have CSA Approval

The CSA label on every piece of EPDM Black Master Flash means that installers will ''NOT'' be accosted by local Building Inspectors, making sign-offs that much easier. CSA, IAPMO and ICC listing or approvals are only available on Master Flash products. Don't be fooled by products that look like Master Flash!
master flash imageMaster Flash # 1 (1/4'' - 2 1/2'') Master Flash # 2 (1-1/4'' - 3'') Master Flash # 3 (1/4'' - 5'') Master Flash # 4 (3'' - 6 1/4'') Master Flash # 6 (5'' - 9'') Master Flash # 7 (6'' - 11'') Master Flash # 8 (7'' - 13'') Master Flash # 9 (9'' - 19'') master flash imageMaster Flash # 3 Hi Temp Silicone Red (1/4'' - 4'') Master Flash # 5 Hi Temp Silicone Red (4 1/4'' - 7 3/4'') Master Flash # 8 Hi Temp Silicone Red (7'' - 13'') Master Flash # 9 Hi Temp Silicone Red (9'' - 19'') master flash imageRetro Fit Master Flash (3/4'' - 2 3/4'') Retro Fit Master Flash (2'' - 7 1/4'') Retro Fit Master Flash (3 1/4'' - 10'')

Standard & Hi Temp Installation Instructions

master flash imageChoose pipe opening and trim master flash imageSlide flashing over pipe master flash imageForm flashing to roof profile master flash imageApply sealant master flash imageFasten flashing to complete

Retro Fit Installation Instructions

master flash imageUsing tin snips, cut the cone to fit the pipe, starting opposite the mechanical locking joiner. master flash imageWrap Retrofit around the pipe, join the interlocking teeth starting from the top and proceeding down. master flash imageSqueeze joiner tightly with pliers to crimp, start at the top and work down to the base. master flash imageApply sealant to the underside of the base. Shape Retrofit to roof by pressing the aluminum base to the roof profile. master flash imageFasten Retrofit to roof using self-drilling screws, leave no gaps between base and the roof contours. master flash imageApply additional sealant to mechanical locking joiner seam and to all areas that could be a potential leak risk.
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