How To Make Trimless Corners With Lap Siding

Learn how to install hardietrim boards on outside cornersof your next siding project with this instructional guide.

How to make trimless corners with lap siding. If you choose to install your trim over your lap siding lp smartside 440 series trim is a fine choice. Answer 1 of 2. It is called a compound miter. We have used this application before.

They seal the corners of the siding against water the most typical corner trim is 4 inches wide but you can make 3 inch or 6 or 8 inch corners if those widths fit the house design. Detail showing an outside corner featuring mitered lap siding. To detail a mitered outside corner using james hardie s artisan lap siding a robust interior corner must first be constructed behind the fiber cement sheeting should be a breathable waterproof membrane followed by exterior sheathing and then an air gap with small wooden spacers screwed into the corner. This makes for a classic look but calls for very good carpentry skills and boards that are certain not to shrink.

Due to the angle of the siding you will first need to determine the angle at which the siding sits on the house wall which is typically between 10 15 degrees. The method discussed here is an easier and more common one installing corner trim first and then butting the siding to it. In some custom installations lap siding is carefully mitered at outside corners. Hello alex we are one of the largest james hardie siding elite preferred contractors in maryland and we have done numerous james hardie installs.

Unsubscribe from matthew savage. Jlc live presenter peter heard shows how to create a perfect joint every time when mitering siding outside corners with beveled cedar siding. Then install the front facing trim so it overlaps the side trim. Siding start lap siding inside corner matthew savage.