Most pigments are accumulated by specialized cells, termed pigment cells, derived early in embryonic development either directly from the neural plate (e.g., pigmented retinal epithelium (PRE) and the pineal organ pigment cells) [1] or from the neural crest [2] and [3] .
Both the fascia and soffit are part of the exterior of the home and should be painted every 5-7 years, just like the exterior of a home. It is very common for the fascia to rot in older homes if it isnât painted often enough.The paint protects the fascia and soffit from the natural elements of weather.ain gutters are attached to the fascia, but an easier way to describe where the fascia is located is to say that it is what the Christmas lights are attached to. The fascia can be made up of any type of wood and size (2Ã4, 2Ã6 or 2Ã8).
Starting with the soffit, nail lengths of J-channel against the inner edge of the fascia board. This channel conceals the cut edges of the soffit lengths as they meet the fascia. All siding and soffit pieces have nail slots. Nail at the slot centers to allow for expansion and hold the heads out 1/32 to 1/16 in. Don't nail anything tight. If your home has a box soffit or a hip roof, nail a second band of J-channel along the soffit edge as it meets the house. If your home does not have a boxed soffit return, but has soffit plywood nailed to the bottoms of the ceiling joists, you may be able to omit the inner channel.