Cedar Siding Underlayment Moisture Control

For optimum performance use cedar breather with rapid ridge 7 ridge vent.

Cedar siding underlayment moisture control.

It wicks up from beneath trickles in from above and blows in. Install the felt paper with minimum 6 inch overlaps on vertical joints 2 inches on horizontal laps and 4 inches wrapped each way at inside and outside corners. The one aspect with cedar siding to remember is that it is wood product and needs to be handled with some specific care. Moisture penetrates even the most carefully installed and sealed exterior siding in several ways.

I don t know jim we don t have basements here i have built a lot of homes on upslope lots with walkout basements and we put studs 2 inside the back concrete walls with fiberglass in them then try to get some air from the side into the 2 gap to dry the area out if moisture does get through. For cedar shakes your best bet is to go with a synthetic blend of asphalt mixed with fiberglass for added fortification against moisture. Their underlayments are made with a special non slip coating on each side for maximum safety during installation. Vinyl siding is lightweight easy to cut and easy to install which makes it the natural choice for contractors.

The first underlayment is a waterproof ice and water membrane that is installed along the perimeter on the roof to protect a roof from ice damming in snow zone areas read more on ice dams here as well as areas where roof planes meet to form valleys which naturally channel high water flow in wet weather and other roof penetrations such as. Available in fanfold bundles where the insulation is crimped and folded to ensure it lays flat the underlayments are made of closed cell polystyrene which creates the ultra smooth. Is underlayment necessary for cedar siding. Cedar breather ventilated underlayment cedar breather protects the beauty and life of wood roofing by providing a space for continuous airflow between the solid roof deck and shingles or shakes.

Made of extruded polystyrene xps our underlayments provide superior moisture resistance and are perforated to allow moisture vapor to escape. For instance even though cedar is naturally resistant to moisture and to the elements in general which makes it the ideal natural siding material it is still sensitive. Greenguard is the nation s leading brand of siding underlayments. The cedar shake and shingle bureau recommends installation over type 30 asphalt felt underlayment for red cedar shingles and shakes.

How to moisture proof siding. Greenguard s siding underlayment is designed to be sized and installed quickly and painlessly.