AZEK Porch EN - Manual (Page 3)

Page 3
Installation Preparation
Follow these guidelines for best porch installation:
• Avoid storing AZEK Porch in areas of excessive heat
• Prior to installation, make sure joists are structurally sound, free of nails and spaced at a maximum of
16” center to center.
• For new construction, space joists at 16” on center maximum and slope the joists away from the house at
1/4” per foot.
• If installing porch plank at 45˚ angle, space joists at 12” on center.
• AZEK Porch has a maximum span of 16” on center.
• Ensure that all joists are crowned correctly and that all joists are level across the top as AZEK Porch
will conform to the surface contour of the substructure.
• Be sure to install suffi cient wood blocking below areas where railing posts will be installed.
• Provide proper structural support below AZEK Porch where load bearing columns are present.
• Items related to stair construction, structural framing or any other general construction questions
should be reviewed with the local code authority, engineer, or architect.
• All porch framing and substructure should be securely attached to ground footings and/or building
structure. No fl oating substructures should be used.
Extreme Heat Warning
Be aware of excessive heat on the surface of
AZEK products from external sources, such as but
not limited to, fi re or refl ection of sunlight from
energy-effi cient window products. Low-emissivity
(Low-E) glass can potentially harm AZEK
products. Low-E glass is designed to prevent
passive heat gain within a structure and can cause
unusual heat build-up on exterior surfaces. This
extreme elevation of surface temperatures, which
exceeds that of normal exposure, can possibly
cause AZEK products to melt, sag, warp, discolor,
increase expansion/contraction, and accelerate
weathering.
Current or potential AZEK customers that have
concerns about possible damage by Low-E glass
should contact the manufacturer of the product
which contains Low-E glass for a solution to reduce
or eliminate the effects of refl ected sunlight.
Excessive Construction Debris
It is important during construction, the deck’s
surface stay clear from excessive build-up
of dirt, sand, and dust from tile, concrete,
landscape blocks, or any other masonry
products. If these materials are not removed
immediately, the deck surface will become
diffi cult to clean and can potentially damage
the deck’s surface fi nish.
Do not use AZEK Porch as a work surface.
If a build-up does occur please refer to
the Care and Cleaning section in AZEK’s
installation guide or website, AZEK.com.
Joists should be sloped at 1/4” per foot away from the house to facilitate drainage.
Working with AZEK Porch