INstall From the Side.

Easy Retro-Fit Roof Flashing

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Electric Service Mast Flashing Roof Accessories


Building the Better Mouse Trap


ASI manufacturers a complete line of waterproof roof accessories designed to weatherproof difficult roof penetrations. The ASI patented product lines are used extensively across the United States, and are  industry unique, effective and economical solutions for weatherproofing penetrations through a roof. Each product is made from high quality, long-lasting materials, and made in the good old USA.

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