Joseph Jenkins Inc.

Publishing, Consulting, Internet Sales, Training and Education


Slate Store Snow Guards Solder Store Compost Store

About Us at Joseph Jenkins Inc.

Address: 143 Forest Lane, Grove City, PA 16127 USA

Phone: 814-786-9085 or 814-786-7429

Fax: 814-786-8209

Open: M-F, 9-5, Eastern Time




Our titles include:

Slate Roof Bible, 3rd Edition

Available in our store or on Amazon.

The Humanure Handbook, 4th Edition

Available in our store or on Amazon.

The Balance Point

Available in our store, on Amazon, on Kindle, and on Smashwords.

Traditional Roofing Magazine




Slate Roof Warehouse:

We offer slate and traditional roofing tools and supplies.

Snow Guard Warehouse:

We have the largest selection of snow guards, snow rails, and roof snow retention products on the internet!

Humanure Store

We sell compost related products on the internet, primarily our books.


Snow Guard Warehouse

Consulting Services:


Slate Roof Consulting

Nationwide consulting services on slate roofs only, including litigation support services, insurance examinations, site visits, roof evaluations, conditions reports, and anything to do with slate roofs.


Compost Consulting

International consulting services helping people to implement compost toilet systems in households, schools, villages, orphanages, and any venue where people need ecological sanitation.


Additional Websites:


Jenkins Publishing

Jenkins Corporation

Traditional Roofing Magazine

Slate Roof Central

The Slate Roof Experts

How to Find Us:

We're located in western Pennsylvania about 29 miles east of the Ohio border (about 10 miles east of the intersection of I-80 and I-79), three minutes off Interstate 80 at exit 29 (Barkeyville, Route 8). Take Route 8 north at exit 29 about 1/2 mile to the first left turn (Gilmore Road), turn left onto Gilmore and go about one mile to the first left turn (Old Beech Road). Turn left onto Old Beech and then go about 1/4 mile to the 3rd driveway on the right (Forest Lane). Turn right onto Forest Lane and you'll find us at the top of the hill.

Joseph Jenkins Inc. how to find us

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We have the largest selection of snow retention systems for roofs available on the internet at the Snow Guard Warehouse!



50:50 Tin Lead BAR AND WIRE SOLDER sold at the Solder Warehouse