| Author | Message | ||
     Joe Jenkins Senior Member Username: Joe Post Number: 213 Registered: 07-2006 |
Exposed nail points underneath roof sheathing condense moisture because the metal conducts the cold into the interior (i.e. the nail points are colder than the interior air because the nail heads are exterior). The solution is to ventilate the attic space so that it is the same temperature as the exterior. | ||
| jesse d marshall New member Username: Tinknocker Post Number: 3 Registered: 01-2008 |
What the customer has is moisture on the underside of the sheathing on the nails that are coming through, and also around the area of the nail. So we are thinking that a roof vent of some sort with soffit vent will help with that.Other than that there is no other signs of moisture,Just on the tip of the nails,but it seems to be the whole underside of the hip roof.You also mentioned to stay away from ridge vent,wondering why and if anyone has experience with Trimline's Variavent for tile roofs??? | ||
| David Spradlin Junior Member Username: David_spradlin Post Number: 13 Registered: 06-2007 |
I would personally stay away from ridge vent on the spanish tile. We usually use regular "half-round" lead-base dormer vents. We've also used O'Haggins vents a few times, which are shaped to blend into the field of the roof more. | ||
| Joe Jenkins Senior Member Username: Joe Post Number: 211 Registered: 07-2006 |
Out here in western PA, we buy the mortar and the sand at the same place. The sand is loose - we just shovel it into buckets in the back of a truck if we just need smaller amounts, otherwise, it can be delivered to the job site and dumped. We always use "masonry sand" rather than concrete sand, when doing masonry work. Masonry sand is fine, without rocks or lumps. | ||
| Joe Jenkins Senior Member Username: Joe Post Number: 210 Registered: 07-2006 |
The mortar cement is just mortar cement. You add the sand to it. Mix it dry, then add the water. | ||
| jesse d marshall New member Username: Tinknocker Post Number: 2 Registered: 01-2008 |
Is the type m all ready mixed like that or do we buy the masonary cement and the plaster sand seperatly then mix? | ||
| David Spradlin Junior Member Username: David_spradlin Post Number: 11 Registered: 06-2007 |
Type M mortar mix: 1 part- Type 1 cement (masonry cement) 3 part- damp plaster sand I have heard of people adding fire clay to this mix, but have never used in myself, nor have I seen it spec'd anywhere. Standard cement color will work fine. | ||
| jesse d marshall New member Username: Tinknocker Post Number: 1 Registered: 01-2008 |
We are looking at a spanish tile hip roof and all the mortar is failing on the hip tiles which are nailed on and the sides are filled with red cement.We plan on removing the hip tiles and installing new cement,what mixture should be used and can i use standard cement coloring? Also need to install either box vents or a ridge vent on said roof,anyone know of some good products available for tile roofs??? |
