Screen Porch Rot Repair

By Robert Robillard on Decks And Porches


The last part of this project involved screen porch rot repair.  This screen porch door jamb was to far gone.  As a result of rot I chose to replace the entire door jamb with 2 by cedar material.

There was also structural rot in the support post framing and trim.   See small patch between door jamb and step railing.

The cedar jamb supports a screen transom panel above the door.  We sloped the top of this jamb 15 degrees to shed any wind driven rain.  This is a simple trick that should be used on all exterior, horizontal trim.

The seam of the door jamb and the screen porch frame was covered with 3/8″ quarter round which we back primed and sealed all the end grain prior to replacing.

Cutting the hinge mortises, we installed a new Brosco wood combination screen / storm door.

A mahogany sill was cut and installed to cover the seams of the two porches as well as “lock in” the cedar jamb.  The sill matches the mahogany deck boards we used on the deck repair.

Shims, plumbing and setting the custom cedar door jamb.

Exterior view of screen porch door. Sill seen below door.

Threshold covers deck board seams nicely. Notice cedar jamb end grain sealed with white primer.  Sealing end grain helps the boards resist wicking moisture and prematurely causing rot.

Steps and storm door installed.  Finished view ~ right side.

Finished view ~ left side.

finished steps ~ left side.

Deck and tie in at wall ~ finished view.

Finished view – right angle.

Clapboards and trim to left of storm door were replaced. Click on photos to enlarge view.

~ concord carpenter

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About the author

Robert Robillard

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzzr As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising-the-bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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