Technical Specifications
4
3
A NATURAL DEFENSE AGAINST NATURE 
All LP
®
 SmartSide
®
 products are treated to the core through our proprietary SmartGuard
®
 process. With four 
components of protection, the SmartGuard process adds strength and helps LP SmartSide products withstand 
impacts, freeze/thaw cycles, high humidity, fungal decay and more. 
See more about how LP SmartSide products are made at YouTube.com/LPSmartSide.
WAXES OVERLAY
ZINC
RESINS
BECAUSE STRENGTH 
IS MAKE OR BREAK 
FOUR COMPONENTS OF PROTECTION
LP’s proprietary SmartGuard
®
 manufacturing process ensures that every 
LP SmartSide Trim & Siding product is treated with an advanced formula of 
adhesive resins, water-resistant waxes and zinc borate, after which a water-
resistant, resin-saturated overlay is bonded to the product. The result: four 
components of protection against water damage, termites and fungal decay.
Vinyl
OUTSTANDING IMPACT 
RESISTANCE
Testing shows that LP SmartSide 
strand products resist impact 
better than vinyl and fiber cement 
siding, which means they can stand 
up better against everything from 
everyday bumps to airborne storm 
debris. And because it doesn't 
break as easily as fiber cement 
siding, LP SmartSide strand siding 
is also easier to handle and install, 
and results in less waste.
RESISTANCE TO 
FUNGAL DECAY  
AND TERMITES
Since 1996, LP SmartSide strand 
substrate siding has undergone 
brutal testing in Hilo, Hawaii. An 
average temperature of more than 
70 degrees, high levels of humidity, 
and almost 170 inches of annual 
rainfall make Hilo’s climate the 
perfect breeding ground for termites, 
moisture and fungal decay. Yet our 
Exterior Exposure Program continues 
to validate that LP SmartSide siding 
performs over time.
HAIL AND WIND 
RESISTANCE
Third-party test results 
demonstrate that LP SmartSide 
lap siding resisted hail damage 
better than fiber cement and  
vinyl. In fact, the LP SmartSide 
warranty covers impacts from 
hail up to 1.75˝ in diameter. LP 
SmartSide lap siding is also 
designed to withstand tough 
storms with wind gusts of up to 
200 miles per hour. Refer to  
ESR-1301, Table 2B, Lap Siding.
Untreated wood (left), LP SmartSide (right)
ENGINEERED TO IMPRESS
LP SmartSide
LP SmartSide product testing in Hilo, Hawaii
Fiber Cement
BACKED BY STRONG WARRANTIES
LP has your back with an industry-leading, transferable limited 
warranty for LP
®
 SmartSide
®
 products: a 5-year 100% labor and 
material replacement warranty with a 50-year prorated limited 
warranty. LP
®
 SmartSide
®
 ExpertFinish
®
 Trim & Siding products 
include an additional 15-year finish warranty.
For complete warranty details visit LPCorp.com










