Mohammad Khan
Co-owner, United Developers · MHIC #111971
Mohammad Khan is a co-owner of United Developers and the individual holding the company’s Maryland Home Improvement Commission registration, #111971. He reviews the assembly-level guidance on this site — underlayment, flashing, valleys, edge metal, decking and ventilation — against how the work is actually specified and inspected on Maryland houses.
- Holds MHIC #111971 — the Maryland Home Improvement Commission registration United Developers operates under. It is a public record: search the number at Maryland DLLR.
- Co-owner of United Developers, a d/b/a of PS International Incorporation, operating from 4915 St Elmo Ave Ste 403, Bethesda, MD 20814.
- Reviews the roof replacement, asphalt shingle roofing, roof flashing and penetrations guidance published on this site.
Areas of responsibility
- Roof replacement
- Asphalt shingle roofing
- Roof flashing and penetrations
- Attic ventilation
- Roof decking and structural sheathing
- Storm and wind damage assessment
- Maryland residential building code
Pages Mohammad Khan has reviewed
Every guide below carries this byline. The list is generated from the pages themselves, so it cannot claim a review the page does not show.
- Alternatives to Siding Replacement
- Attic Ventilation: Intake, Exhaust and Balance
- Chimney Flashing: Step and Counter Flashing, Crickets, Cost
- Gutter Installation Standards: What a Proper Job Includes
- How Do I Know If I Need a New Roof? Signs and Age
- How Long Does a Roof Last? Asphalt, Metal, Flat, Tile
- How Long Does a Roof Replacement Take?
- How Shingles Work, and Whether Asphalt Shingles Are Good
- Ice-and-Water Shield
- Metal Roof Details: Underlayment, Trim, Vents and Screws
- Can You Put a Metal Roof Over Shingles?
- Roof Decking and Sheathing
- Roof Decking: Thickness, Code Requirements and Materials
- Drip Edge and Edge Metal
- Identifying Roof Problems Early
- Roof Flashing and Penetrations
- Roof Leak: Who to Call, What It Costs to Fix
- Roof Underlayment: Synthetic vs Felt
- Roof Valleys: Open, Closed-Cut and Woven Compared
- Roof Vent Types Compared
- Roof Ventilation Requirements
- GAF vs TAMKO vs Owens Corning vs CertainTeed
- Shingle Classes and Impact Ratings
- Starter Strip, Hip and Ridge Cap
- What Counts as Storm Damage to a Roof: Wind, Hail and Leaks
- What Is Included in a Roof Replacement
- Why Replace a 20-Year-Old Roof That Looks Fine?
- Why a Roof Fails at Its Details and Not Its Field
Contact
Reach Mohammad through the office: (240) 880-2108 or office@udroofing.com. If something on a page he has reviewed is wrong, say so — the correction goes on the page.