MFM Building Products’ Ultra HT Wind & Water Seal recently achieved a Class A Fire Rating for use with Class A standard 3-tab and architectural asphalt shingles per ASTM E108/ICC ES AC188. Ultra HT is a 45-mil, self-adhered roofing underlayment for use in steep-slope roofing and re-roofing installations. The product features a durable cross-laminated polyethylene […]
