{"product_id":"mfm-roof-deck-tape-self-adhered-seam-tape-4-in-x-67-ft-48304","title":"MFM Roof Deck Tape Self-Adhered Seam Tape 4 in x 67 ft – 48304","description":"\u003cp\u003eMFM Roof Deck Tape 48304 is a 40 mil, self-adhered 4 in x 67 ft seam tape for sealing roof deck panel joints before underlayment. It is for fortified and moisture-control roof assemblies where seams need a dedicated tape layer under the primary roofing underlayment.\u003c\/p\u003e\n\u003ch3\u003eKey Specs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel \/ MPN:\u003c\/strong\u003e 48304\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e MFM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Self-adhered roof deck seam tape\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 4 in x 67 ft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 40 mil\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdhesive:\u003c\/strong\u003e Aggressive asphalt-based adhesive system\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface:\u003c\/strong\u003e Non-slip film\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Taping roof deck joints and seams\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSell unit:\u003c\/strong\u003e Roll\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCoverage \u0026amp; How Much You Need\u003c\/h3\u003e\n\u003cp\u003eOne roll provides 67 linear ft of seam tape before cuts, overlaps, and end waste.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasure required linear footage from the takeoff.\u003c\/li\u003e\n\u003cli\u003eAdd waste for cut ends, overlaps, and layout constraints.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \/ Fitment\u003c\/h3\u003e\n\u003cp\u003eUse over clean plywood, OSB, rigid foam, metal, and other manufacturer-approved roof deck substrates. Do NOT use as the exposed finished roof, and do not apply over dirty, wet, frosty, or incompatible surfaces outside the installation instructions.\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003ch4\u003eWhat is this tape used for?\u003c\/h4\u003e\n\u003cp\u003eIt tapes roof deck joints and seams to reduce water, air, and moisture entry before the roof is covered with felt, synthetic underlayment, or self-adhered underlayment.\u003c\/p\u003e\n\u003ch4\u003eHow long is one roll?\u003c\/h4\u003e\n\u003cp\u003eThe 48304 roll is 4 in wide x 67 ft long. Count roof deck seams by linear foot, then add waste for cut ends and overlaps.\u003c\/p\u003e\n\u003ch4\u003eWhat substrates does it stick to?\u003c\/h4\u003e\n\u003cp\u003eMFM states Roof Deck Tape adheres to plywood, OSB, rigid foam insulation, metal, and other common roof deck materials when properly prepared.\u003c\/p\u003e\n\u003ch4\u003eDoes it self-seal around fasteners?\u003c\/h4\u003e\n\u003cp\u003eYes. MFM describes the adhesive as self-sealing around roofing fasteners such as nails, screws, and staples to maintain the barrier at fastener penetrations.\u003c\/p\u003e\n\u003ch4\u003eIs this required by code?\u003c\/h4\u003e\n\u003cp\u003eSome building codes or fortified programs may require roof deck seam tape in specific assemblies. Verify the project code, insurer, and Fortified requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eRoof-deck seam taping is roof work. Use fall protection, gloves, and manufacturer temperature\/substrate guidance for adhesive handling.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Expert Notes\u003c\/h3\u003e\n\u003cp\u003eThis should rank well for pro searches because it names the real use case: roof-deck seam sealing before underlayment, with exact size, thickness, substrate compatibility, and fortified-program context.\u003c\/p\u003e","brand":"MFM","offers":[{"title":"Default Title","offer_id":53103230681455,"sku":"MFMRT467","price":21.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/AlternateImage1_MFMRT467_1.jpg?v=1781162699","url":"https:\/\/superarbor.io\/products\/mfm-roof-deck-tape-self-adhered-seam-tape-4-in-x-67-ft-48304","provider":"Super Arbor","version":"1.0","type":"link"}