Roof Decking

There are several different types of decking materials that can be used to support your surface roof. However, the type of surface roofing you choose can determine if a solid sheathing, or open slat system and board dimensions of the decking will be required.

    Solid Sheathing: Usually comes in 4' x 8' Sheets

      Tongue and Groove—helps to prevent both buckles and bows.

      Staggered Seams—creates a more stable roof. Don't line up the sheathing sheets right above the other. Stagger them by starting every other row with a 4x4 sheet rather than a full 4x8 sheet.

      Sheathing Thickness—will depend upon the type of sheathing used, however it is "Wise" to

      Type of Material Used—Plywood, Wafer Board, or Particle Board. Through the knowledge and experience that I have gained, the best is tongue and groove plywood—especially if ever there is ever a leak. Other materials may weaken, or even disintegrate in a very short time when wet.

      Moisture Prevention—Once the sheathing is installed, it is imperative that roofing felt be applied over it right away to prevent the sheathing from getting wet. When sheathing gets wet, it can warp, bow, and buckle.

    Open Slats: Roof materials such as: wood shakes, metal, tile, and others may suggest using slats rather than solid sheathing as a roof deck . The dimensions of the slats to be used depend upon both the area building codes and the specifications required by the product manufacturer.

When wood shakes are installed directly over sheathing moisture problems can occur...

...Wood Shakes need to "breathe" and if they are not allowed, moisture can build up and cause your roof to rot. Please refer to the manufacturer's recommended guidelines for installation techniques.

For an example go to:

Go on to Step 9d: Flashing and Bituminus Roofing Membranes


1 Foundation

a) Types of Basement Foundations

b) Foundation Materials

c) Foundation Drainage

d) Basement Waterproofing

e) Natural Disasters

2 Floor Systems

3 Wall Systems

4 Windows and Doors

5 Moisture Proof Barriers

6 Exterior Surface Material

7 Insulation

8 Interior Wall Materials

a) Interior Wall Finish

9 Roof Systems

a) Structural Frame

b) Radiant Barrier

c) Roof Decking

d) Flashing and Bituminus Roofing Membranes

e) Roofing Felt

f) Surface Roofing Material

g) Attic Insulation

10 Ventilation

11 Plumbing & Fixtures

a) Water Distribution System

b) Drain Lines

c) Hot Water Heaters

d) Appliance Hookups

e) Water Softener Filtration System

f) Plumbing Fixtures

12 Electricity and Wiring

a) Electricity Sources

13 Climate Control

14 Your Home's Decor

a) How to be Organized in Planning Your Home's Decor

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