The James Hardie company, makers of HardiePlank, recommends the use of a cement patch product made of an acrylic mortar compound for patching their siding products. Acrylic mortar compound can be found at most home improvement retailers and hardware stores under various brand and trade names.
What is the best caulking for siding?
Name Material Drying time
-------------------------------------- ------------------------- ------------
Red Devil 077010 Acrylic Latex Sealant Siliconized acrylic latex 1 Hour
Dap Cedar Acrylic Latex Caulk Siliconized acrylic latex 30 minutes
Sashco 46090 Textured siliconized 1 to 4 hours
DAP DYNAFLEX 230 Siliconized acrylic latex 2 hours
What is the best caulk for Hardiplank siding?
Product Type Weight
------------------------------------------------ -------- ------
DAP INC 18152 Silicone 10.1oz
GE Sealants & Adhesives M90015 Silicone 10.1oz
Dap 18001 Kwik Seal Caulk Silicone 5.5oz
Gorilla White 100 Percent Silicone Sealant Caulk Silicone 10.1oz
Are you supposed to caulk hardiplank?
James Hardie DOES NOT recommend using caulk or “H”-jointers for the butt joints of HardiePlank® siding with ColorPlus® technology. James Hardie also DOES NOT recommend applying caulk to the horizontal overlap between siding planks (see Figure 2).
Should you caulk fiber cement siding?
Many professionals, like those at James Hardie, also agree that you should not use caulk on fiber cement siding unless there is no metal flashing underneath. Flashing acts as a waterproofing layer for this type of siding, and caulking will prevent the flashing from doing its job.
Should hardiplank siding be caulked?
For regular Hardiplank lap siding (the kind you paint AFTER installation), caulking at butt joints is optional. This from installation instructions: A high quality, paintable caulk is recommended.23 may 2011
Do you caulk Hardie board seams?
Joint-flashing material must be durable, waterproof material that does not react with cement based products. ... Other products may also be suitable. James Hardie DOES NOT recommend using caulk or “H”-jointers for the butt joints of HardiePlank® siding with ColorPlus® technology.
Do you caulk between hardiplank siding?
Wherever Hardie siding meets a trim board, the company recommends you leave a 1/8” gap between the siding and the trim and apply a 3/8” bead of approved caulking to protect and seal the edge of the siding.20 feb 2018
Do you caulk Hardie siding seams?
APPLICATION: General: James Hardie believes it is good building practice to seal the joints to prevent moisture, such as wind-driven rain and snow, from penetrating the wall cavity. Caulking around windows, doors, eaves and trim edges gives added insurance that leaks will not occur.