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STRUCTURAL INSPECTIONS & DEFECTS
ARCHITECTURE & BUILDING COMPONENT ID
CHIMNEY INSPECTION DIAGNOSIS REPAIR
COLUMNS & POSTS, DEFECTS
CONNECTORS, FASTENERS, TIES
DECK & PORCH CONSTRUCTION
DEFINITIONS of MOBILE HOME, DOUBLEWIDE, MODULAR, PANELIZED CONSTRUCTION
DEFINITIONS of ENGINEERED WOOD OSB LVL etc
DISASTER BUILDING INSPECTION & REPAIR
EARTHQUAKE DAMAGED FOUNDATIONS
FIRE DAMAGE vs MOLD DAMAGE
FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP
FOOTING & FOUNDATION DRAINS
FOUNDATION CRACKS & DAMAGE GUIDE
FRAMING DAMAGE, INSPECTION, REPAIR
GRADING, DRAINAGE & SITE WORK
HOUSE PARTS, DEFINITIONS
INSECT INFESTATION / DAMAGE
KIT HOMES, Aladdin, Sears, Wards, Others
LOG HOME GUIDE
MOBILE HOMES, DOUBLEWIDES, TRAILERS
MODULAR HOME CONSTRUCTION
MOISTURE CONTROL in BUILDINGS
PORCH CONSTRUCTION & SCREENING
PRE-CUT & KIT HOMES
RETAINING WALL DESIGNS, TYPES, DAMAGE
ROT, FUNGUS, INSECT DAMAGE
SINKHOLES, WARNING SIGNS
STAIRS, RAILINGS, LANDINGS, RAMPS
STRAW BALE CONSTRUCTION
STRESS SKIN INSULATED PANELS
STRUCTURAL WOOD ASSESSMENT
TIMBER FRAMING, ROT
TRUSSES, Floor & Roof
WATER ENTRY in BUILDINGS
WOOD STRUCTURE ASSESSMENT
Porch construction & porch screen installation:
This article provides details for porch construction and porch screen installation. This article series discuss best porch & deck construction practices, including choice of framing materials, decking or flooring choices & installation, how to select and use deck and porch structural and flooring fasteners, actual deck & porch framing construction details & connections, deck joist & beam span tables,
How to build leak-proof rooftop decks, construction of covered & screened porches, deck & porch railing construction & materials, choices of finishes and stains for decks & porches, and past & current deck lumber preservative treatments with related health & environmental concerns.
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The detailing for decks and porches is very similar. Code requirements for railings are the same, whether a deck is open or closed in with screening.
If the screening runs to the floor, railings will be required to protect the screening, even if the railing is not required by code.
[Click to enlarge any image]
Porch decking can be spaced (like an open deck) or installed tight with a slope for drainage. Structurally, posts are easier to anchor on a porch, since they are tied in to the roof framing, which keeps them rigid.
Guide to Solid Decking for Porch Floors
Where the decking will be protected by a roof, it can be either spaced like a typical open deck or sealed and painted with a decking enamel for a more formal appearance.
Solid decking is typically tongue-and groove 1x4, 5/4x6, or 2x6 decking. For solid decking, choose kiln-dried stock and install it with tight seams.
Solid decking should be sloped 1/4 inch per foot to drain. Make provisions for drainage on the three exterior sides and, if exposed to significant wetting, on the house side as well.
If the porch has a solid knee wall, leave minimum 1-inch scuppers at floor level to allow water to drain from the porch interior to outside.
More information about the porch floor above is found at Rooftop Deck Construction.
How to Install Enclosed Porch Screening
With a screened enclosure, use either solid decking or spaced decking with insect screening stapled to the underside of the joists. Furring strips tacked over the screening will help keep it from sagging and tearing.
If the screening goes from floor to eaves, a system of rails and balusters will need to be installed to protect the lower half of the screen (Figure 4-18 below).
If the porch is 30 inches or more above grade, the railing will need to comply with code for guardrails (see “Railings,” page 147). Another option is to build an enclosed knee wall and start the screening at the top of the knee wall (see Figure 4-19 shown below).
Options for Screening-in a Porch
There are several options for screening. Whether you build your own or buy custom screens, aluminum screening is much stronger and more tear-resistant than fiberglass. Removable screens have the advantage of being easy to remove and repair. However, building screens from wooden screen mold is very time-consuming. Simpler options for screening are:
Deck & Porch Resources, Products, Manufacturers: Where to Buy
Prefabricated Deck & Porch Railing Systems
Hidden Deck Fastener Suppliers
-- Adapted with permission from Best Practices Guide to Residential Construction.
Continue reading at DECK FLOOR INSTALLATION or select a topic from the More Reading links shown below.
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