Tag: Energy Efficiency

How to Install MD Door Seal: Aluminum, Kerf & Sweep Systems (Step-by-Step)

By Riday Adnan October 12, 2026 20 min read

M-D Building Products (Macklanburg-Duncan) door seals are among the most trusted weatherstripping and threshold sealing systems in modern residential and light commercial construction. Whether you are fitting a classic three-piece...

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Sealing & Weatherproofing

Door Sealing & Weatherproofing: Gaps, Thresholds & Drafts — Complete Guide

By Riday Adnan October 12, 2026 Updated October 17, 2026 38 min read

An unsealed or poorly weatherstripped exterior door is the thermal equivalent of cutting a four-inch hole directly through your home’s exterior wall. When winter winds howl or summer heat waves...

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