How To Identify Lp Siding

It is only found every so often on the material so don t just look at one board and say no knot must not be lp.

How to identify lp siding. Look for the lp knot. Louisiana pacific innerseal and 2nd generation siding id page. The siding should measure approximately one half inch. The affected sections usually the bottoms will need to be cut off and.

Lp siding products also come in sheets in when water runs down the face of the siding it tends to hang on the bottom edge wicking up and causing the bottom edges to swell and delaminate. Made of approx 1 strands of wood. I have seen measurements at lower courses that exceed one inch. Their intent was to sell me the lp smart siding and trim.

Below is a photo of the signature knot from the lp siding. Full lp siding removal is the best way to ensure complete eradication of and fungus. Vinyl siding too is also pretty easy to identify. The bottom edge of lp lap siding is where the failure is first evident.

2nd generation lp had a resin backing dark in color. This was manufactured in 1995 august 1997 new smart lp lap. The timing is a little fuzzy but to my understanding lp stopped making inner seal siding around 1996 and they started making a similar and improved product called smartside starting around 2000. Also a full home inspection by an experienced home inspector with good references is usually a very good investment.

The lp features are not striking except for the lp knot. Back of lp innerseal. It feels like plastic is dyed the same color throughout and when pushing on the wall of a house it tends to flex. The worst failure we have seen yet.

Take a close look at a large section of siding to be sure. 1 was from lp. If it s the failing lp you will usually see swelling and or delaminating. Like masonite siding it is also usually labeled by the manufacturer or it may have a manufacturing code on the back side of the siding panel.

However if you have 4 x 8 sheets of lp siding leave them on. I was visited by 3 men representing 3 different companies at a jobsite in east tennessee.