These 8 to 12 inch wide boards were nailed together tight.
1x6 tongue and groove roof sheathing.
Old houses with asphalt shingles usually had either tongue and groove boards or straight sided boards abutting.
All end joints occur in line on every other support figure 6.
Wood is an excellent insulator and in moderate climates no additional rigid insulation on the roof is necessary.
When the roof was first nailed on of course all the nails were in solid wood.
Tongue and groove boards have a wide range of uses from ceiling paneling to accent walls and wainscoting.
Rafters it shouldn t be an issue.
This arrangement is applicable to 4 or more supports 3 or more spans.
Choose a finish to match your look as paint stain whitewash or clear finishes can transform any wood project.
Perfect for interior or exterior projects boards are light weight and easy to nail saw trim or cut.
But you re going to have to do some of the load math to figure out what the exact load will be on one piece of the tongue and groove.
You maybe able to do a deflection calculation with the calculators in the red tool box on this site.
With less than 4 supports a special pattern requiring specified lengths must be used.
But as it is tongue and groove the load will also be transferred over the adjacent pieces.
Some use clips as convenient spacers.
Tongue and groove commonly used as roof sheathing where a ceiling will not be installed and they will be visible from inside the house such as across beams in a vaulted ceiling.
But the lumber was not usually kiln dried.
For 5 8 or thicker roof sheathing on 16 o c.
As wood dries it shrinks.
On 24 1x6 will work but put a layer of sheathing down to eliminate the roofing nail issue.
Roof deck 2x6 or 1x6 t g we use 1x6 up to 3 but the roof is then strapped after with 2x4 then sheathing.
4 tongue and groove roof decking.
All pieces are supported on three supports.
In my experience the need for tongue and groove or edge clips is determined by the thickness of the roof sheathing and the spacing of the rafters.
The keyword here is solid it used to be standard to use shiplap 1 boards tongue groove or other boards for the roof deck.
Tongue groove boards.