C – Parting bead. There are 2 parting beads positioned on either side of your sash box, running vertically from major to base in between the sashes. Every single 50 % portion of the Ventrolla parting bead consists of a draught-proofing program that faces the adjacent sash, forming a comfortable temperature seal.  Far more https://londonceramicandporcelain94703.bloguerosa.com/34761099/an-unbiased-view-of-sash-window-draught-proofing