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).
There are a variety of materials and techniques used for applying soffits and fascia to porch roofs. Most builders choose to match the look of the house roof as close as possible. Soffits can be installed by attaching plywood to the underside of the rafter tails and to a 2x2 nailer that runs across the header beam.Some soffits are made of vinyl and use vents to help cool the roof. Fascia is used as an exterior trim to enhance the appearance of the roof line.Facia boards can be wood or composite material.ome soffits are made of vinyl and use vents to help cool the roof. Fascia is used as an exterior trim to enhance the appearance of the roof line. Facia boards can be wood or composite material.