Installation Guide
36 | Diamond Kote Building Products Application Guide           6.18
FASCIA APPLICATION continued
STEP 11: Install the metal drip edge up the 
gable end using the chalk line as a reference 
and fasten. Be sure to overhang excess 
material 
(Approx. 2") Note: This will need 
to be trimmed AFTER the LP
®
 SmartSide
®
Fascia is installed. 
STEP 12:  Next lift up on 
the metal roof edge on the 
eave end and slide your 
ruler up until it bumps the 
top of the inside. Record 
the measurement where 
the bottom of the sub-
fascia ends.
STEP 13:  Measure and 
mark the LP
®
 SmartSide
®
Fascia from Step 12 at the 
recorded measurement. 
It is important that this 
measurement be pulled 
from the dado as shown. 
Rip the Fascia to width, 
and use Diamond Kote
® 
touch-up paint on all cut 
edges.
STEP 14:  Cut the fascia 
to length and paint all cut 
edges. Start by installing 
the Fascia on the eaves. 
First lift up on the metal 
roof edge and slip the 
Fascia behind the metal. 
Make sure to fasten the 
fascia every 24" o.c. 
maximum. Use Diamond 
Kote
®
 touch-up paint on 
all face nails.
STEP 15:  Install the 
gable end Fascia or/
other sides of a hip roof. 
Finish by trimming the 
excess metal roof edge o of the corners. 
STEP 16: After nishing the Fascia, the next 
step is adding  the Sot if  it is not  already 
installed. 
SOFFIT APPLICATION
•   Architectural Collection Vented Cut-To-
Width  (CTW)  sot  provides  a  minimum 
of 10 square inches per lineal foot of 
ventilation.
•   Recommended spans for open and 
closed  sots  are  given  in  Table  1.  The 
recommendations in Table 1 for open 
Sots  also  apply  to  combined  roof/
ceiling construction. 
•   Panels are assumed continuous over two 
or more spans with the long dimension 
or strength axis across supports for both 
applications.
•   In  open  and  closed  sot  construction, 
protect panel edges against direct 
exposure to the weather with LP
®
SmartSide
®
 Trim and Fascia. 
•   Apply the Sot in a manner that prevents 
moisture intrusion and water build-up. 
All openings, other than the vents, must 
be sealed, caulked, and/or ashed.
•   SOFFIT MUST NOT BE IN DIRECT 
CONTACT WITH MASONRY, CONCRETE, 
BRICK, STONE, STUCCO OR MORTAR.
INSTALLATION
•   Panels must be installed perpendicular 
to supports. 
•   Minimum size framing should be nominal 
2" x 4"
•   All panel edges must be supported or 
backed by solid framing.
•   Consult your local building code for 
open sot applications.
•   When  installing  Sot  with  Sot 
Channel, it is highly recommended 
to double up framing members at all 
sot joints and seams. 
TABLE 1 - LP
®
 SmartSide
®
 CTW, Vented CTW and Sot Panels
(Long Dimension Across Supports) 
Maximum Span 
(inches)
All Edges Supported
24
24
24
Nominal Panel 
Thickness
Precision Series  
38 Series SmartSide sot
Precision Series 76  
and 190 Series SmartSide 
sot
Foundations 76 Series 
LP SmartSide sot
Nail Size + Type 
6d (0.099") nonstaining,  
hot-dipped galvanized
 box
8d (0.113") nonstaining, 
hot-dipped galvanized box
8d (0.113") nonstaining, 
hot-dipped galvanized box
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