A floor depth of no more than 60 ft 0 in.
Floor depth light.
Only a small amount of light penetrates beyond this depth.
The zone between 200 meters 656 feet and 1 000 meters 3 280 feet is usually referred to as the twilight zone but is officially the dysphotic zone.
The bulk of the floor s thickness comes from the joists which are the horizontal beams that carry the floor s weight.
In this zone the intensity of light rapidly dissipates as depth increases.
Vinyl flooring is usually the thinnest choice for floors and 1 8 inch vinyl installed over 1 4 inch underlayment will add only 3 8 inch to the floor height.
A maximum facade facing due south is the optimal orientation.
Hardwood floors and standard carpet with pad add about 3 4 inch to the floor height.
From south to north has been shown to be viable for daylighting.
The depth of light shelf should be equal to the clerestory or transom above it and no deeper than 30 inches.
Also light shelves should be installed high enough to be out of hanging reach and to avoid a feeling of claustrophobia.
Medium loads if the garage is used for average sized vehicles and or medium to heavy trucks the concrete needs to be six inches thick.
Light shelves also have size limits.
Light loads for one to two light cars or trucks the concrete should be at least four inches thick.