Always caulk between the siding and the trim.
Flashing gaps in siding.
Step 7 seal larger gaps up to 1 2 inch wide with polyurethane caulk.
Remove any sawdust dirt or debris from the gap to prep it for finishing.
Fiber cement siding defects failures problem troubleshooting.
The gaps can be caulked with approved products have joint mouldings covers and be flashed from behind the siding provided the opposing ends are factory finished and have not been field cut.
This is messier than acrylic latex but effective.
You will find that filling in the gaps does not require a lot of work.
Leave a 1 8 gap between the siding and the trim or other materials to allow for structural movement.
This article describes the types of problems that occur in fiber cement siding installations in north america including siding shrinkage gaps at butt joints cracks breaks and loose or buckling siding boards or shakes.
Inspect the sidewall around and underneath the fascia and inside the house for signs of moisture damage and repair any rotted areas.
Create a proper 3 16 space at minimum between the two pieces of siding.
Metal flashing or any metal to wood joint should not be caulked.
As long as the gaps are not very large they can usually be fixed in just a matter of minutes.
Simply apply this inexpensive filler into the cracks to seal.
Paint works well over it.
Add felt if needed before nailing the new wood on and prime the new wood on all.
By obtaining some additional siding and carefully preparing it small pieces can simply be snapped into place covering the wide gap your home builder is forced to leave for expansion.
Caulking is a sealant that fills gaps cracks nail holes and similar imperfections on the surface.
Vertical trim gap caulking.
By having the small additional overlapped piece of siding you are still allowing for expansion but you are effectively covering all the gaps in the siding.
Larger gaps may require a little bit more work but are still something that you will be able to fix quickly.
If the kick out and step flashing can t tuck behind the siding screw on cap flashing to cover it then caulk along the top.
Use a keyhole or reciprocating saw with a fine tooth blade to remove enough material from one of the pieces of lap siding.
A common problem with cement board siding products and some other types of horizontal lap siding is that older installation guidelines called for caulking the joint instead of flashing the joint.
Seal small cracks and gaps in your siding under 1 4 inch wide using an acrylic latex caulk.
Vinyl siding repair is often something that can be done quite easily.
Also avoid caulking tongue and groove siding boards together.
Do not caulk between siding and any built in receiving channels located at or around windows.
This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted.
